Meinberg LANTIME PTP Grandmaster Manual
Meinberg LANTIME PTP Grandmaster is a high-performance precision time server that provides accurate and reliable time synchronization for critical applications. It is designed to meet the demanding requirements of telecommunications, financial institutions, and other industries that rely on precise timing. The LANTIME PTP Grandmaster features advanced synchronization capabilities, including support for the Precision Time Protocol (PTP), Network Time Protocol (NTP), and IEEE 1588v2. It also offers a variety of reference input and output options, making it compatible with a wide range of timing sources and devices. With its robust design and advanced features, the LANTIME PTP Grandmaster is an ideal solution for applications requiring the highest levels of time accuracy and reliability.
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MANUAL
IMS - LANTIME M500
Modular Railmount NTP Server
19th March 2020
Meinberg Funkuhren GmbH & Co. KG
Front view (Frontansicht) IMS - LANTIME M500
1
2
3
DEUTSCH
1. Status LEDs: Ref. Time, Time Service, Network, Alarm
2. LC Display, 4 x 16 Zeichen
3. Funktionstasten: 4-Wege Navigationstasten;
F1, F2, OK, ESC
ENGLISH
1. Status LEDs: Ref. Time, Time Service, Network, Alarm
2. LC Display, 4 x 16 characters
3. Function buttons: 4-way navigation button;
F1, F2, OK, ESC
Bottom view (Ansicht Unterseite) IMS - LANTIME M500
1 2 3 4 5 6
1 - PWR
2 - CLK
3 - MRI
4 - ESI
5 - CPU
6 - CES
PWR CLK IO1 IO2 CPU
DEUTSCH
PWR Netzteil (100-240 V AC / 100-200 V DC)
CLK GPS Satellitenempfängermodul
CPU LAN-CPU
RJ45 - 10/100/1000 Base-T
SFP - 1000Base-T
RJ45 Terminal und USB
CES Chassis Erweiterungs-Slot
CES
ENGLISH
PWR Power Supply (100-240 V AC / 100-200 V DC)
CLK GPS satellite receiver module
CPU LAN-CPU
Rj45 - 10/100/1000 Base-T
SFP - 1000Base-T
RJ45 Terminal and USB
CES Chassis Expansion Slot
0
Table of Contents
1 Imprint
1
2 Important Safety Information
2
Important Safety Instructions and Protective Measures
. . . . . . . . . . . . . . . . . . . . . . . . .
2
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3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
Protective Conductor- / Ground-Terminal
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
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9
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10
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10
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11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
2.10 Return of Electrical and Electronic Equipment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
3 The Modular System LANTIME
13
4 Network Timeserver with GNSS synchronized time base
14
5 Mounting the Antenna
15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
Meinberg GPS Antenna/Converter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
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22
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23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23
Mounting and Installation of a Longwave Antenna
. . . . . . . . . . . . . . . . . . . . . . .
24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26
6 Quick Start
27
7 Booting the GNSS receiver
8 Booting the Single Board Computer
28
29
9 Configuration User Interface
30
10 The Menues in Detail
31
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
11 LANTIME Web Interface
33
12 Attachment: Technical Information
35
12.1 Technical Specifications LANTIME / IMS-M500
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
35
12.2 Available Modules and Connectors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
37
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38
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38
12.5 Replacement or Installation of a Hot-pluggable IMS Module
. . . . . . . . . . . . . . . . . . . . .
39
12.5.1 Important Hints for hot-pluggable IMS Modules
. . . . . . . . . . . . . . . . . . . . . . . .
40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
41
12.6.1 Power Supply 100-240 V AC / 100-200 V DC
. . . . . . . . . . . . . . . . . . . . . . . . . .
41
12.6.2 Power Supply 20-60 V DC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42
12.6.3 Power Supply 10-36 V DC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
43
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44
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46
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48
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50
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52
12.6.9 TCR Clock - Time Code Reader and Generator
. . . . . . . . . . . . . . . . . . . . . . . . .
53
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
57
12.6.11 Reference Input Modules (MRI, ESI)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59
12.6.12 CPE and BPE Output Modules (Frontend - Backend, Eurocard)
. . . . . . . . . . . . . .
67
12.6.13 LNE-GbE: Network Expansion with Gigabit Support and SFP Option
. . . . . . . . . . .
87
12.6.14 HPS-100: PTP / SyncE / Hardware NTP Interface
. . . . . . . . . . . . . . . . . . . . . .
92
12.6.15 TSU V3: IEEE-1588 Time Stamp Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
95
12.6.16 IMS PIO: PPS or 10 MHz I/O Module
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
97
12.6.17 LIU - Line Interface Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
99
12.6.18 LNO - 10 MHz Sinus Output Module
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
12.6.19 FDM - Frequency Deviation Monitoring
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
12.6.20 REL1000: Error Relay Module
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
12.6.21 SCG-U: Studio Clock Generator
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
12.6.22 SCG-B: Studio Clock Generator Balanced
. . . . . . . . . . . . . . . . . . . . . . . . . . . 116
12.6.23 VSG - Video Sync Generator
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
12.6.24 CES - Chassis Expansion Slot
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
13 RoHS and WEEE
124
14 Declaration of Conformity
125
Date: 19th March 2020 IMS - LANTIME M500
1 Imprint
Meinberg Funkuhren GmbH & Co. KG
Lange Wand 9, 31812 Bad Pyrmont / Germany
Phone:
Fax:
+ 49 (0) 52 81 / 93 09 - 0
+ 49 (0) 52 81 / 93 09 - 230
Internet: https://www.meinbergglobal.com
Mail: [email protected]
Date: 2020-03-19
Manual
Version: 1.17
1 Imprint
IMS - LANTIME M500 Date: 19th March 2020 1
2
2 Important Safety Information
2.1 Important Safety Instructions and Protective Measures
The following safety instructions must be respected in all operating and installation phases of the device. Nonobservance of safety instructions, or rather special warnings and operating instructions in product manuals, violates safety standards, manufacturer instructions and proper usage of the device. Meinberg Funkuhren shall not be responsible for any damage arising due to non-observance of these regulations.
Depending on your device or the installed options some information is not valid for your device.
The device satisfies the requirements of the following EU regulations: EMC-Directive,
Low Voltage Directive, RoHS Directive and - if applicable - the Radio Equipment Directive.
If a procedure is marked with the following signal words, you may only continue, if you have understood and fulfilled all requirements. In this documentation dangers and indications are classified and illustrated as follows:
DANGER!
The signal word indicates an imminently hazardous situation with a high risk level . This notice draws attention to an operating procedure or similar proceedings, of which a non-observance may result in serious personal injury or death .
WARNING!
The signal word indicates a hazard with a medium risk gradient . This notice draws attention to an operating procedure, a procedure or the like which, if not followed, can lead to serious injuries , possibly resulting in death .
CAUTION!
The signal word indicates a hazard with a low risk gradient . This notice draws attention to an operating procedure, a procedure or the like which, if not followed, can lead to minor injuries .
ATTENTION!
This notice draws attention to an operating procedure, a procedure or the like which, if not followed, can cause damage to the product or loss of important data .
Date: 19th March 2020 IMS - LANTIME M500
2 Important Safety Information
2.2 Used Symbols
The following symbols and pictograms are used in this manual. To illustrate the source of danger, pictograms are used, which can occur in all hazard classes.
Symbol Beschreibung / Description
IEC 60417-5031
Gleichstrom / Direct current
IEC 60417-5032
Wechselstrom / Alternating current
IEC 60417-5017
Erdungsanschluss / Earth (ground) terminal
IEC 60417-5019
Schutzleiteranschluss / Protective earth (ground) terminal
ISO 7000-0434A
Vorsicht / Caution
IEC 60417-6042
Vorsicht, Risiko eines elektrischen Schlages / Caution, risk of electric shock
IEC 60417-5041
Vorsicht, heiße Oberfläche / Caution, hot surface
IEC 60417-6056
Vorsicht, Gefährlich sich bewegende Teile / Caution, moving fan blades
IEC 60417-6172
Trennen Sie alle Netzstecker / Disconnection, all power plugs
IEC 60417-5134
Elektrostatisch gefährdete Bauteile / Electrostatic Sensitive Devices
IEC 60417-6222
Information generell / Information general
2012/19/EU
Dieses Produkt fällt unter die B2B Kategorie. Zur Entsorgung muss es an den
Hersteller übergeben werden.
This product is handled as a B2B category product. In order to secure a WEEE compliant waste disposal it has to be returned to the manufacturer.
IMS - LANTIME M500 Date: 19th March 2020 3
The manuals for a product are included in the scope of delivery of the device on a USB stick. The manuals can also be obtained via the Internet. Enter www.meinbergglobal.com into your browser, then enter the corresponding device name in the search field at the top.
This manual contains important safety instructions for the installation and operation of the device. Please read this manual completely before using the unit.
This device may only be used for the purpose described in this manual. In particular, the given limits of the device must be observed. The safety of the installation in which the unit is integrated is the responsibility of the installer!
Non-observance of these instructions can lead to a reduction in the safety of this device!
Please keep this manual in a safe place.
This manual is intended exclusively for electricians or persons trained by an electrician who are familiar with the applicable national standards and safety rules. Installation, commissioning and operation of this device may only be carried out by qualified personnel.
4 Date: 19th March 2020 IMS - LANTIME M500
2 Important Safety Information
2.3 Security during Installation
WARNING!
Preparing for Commissioning
This built-in unit, has been designed and examined according to the requirements of the standard
IEC 60950-1 „Information Technology Equipment - Safety".
When the built-in unit is used in a terminal (e.g., housing cabinet), additional requirements according to Standard IEC 60950-1 must be observed and complied with. In particular, the general requirements and the safety of electrical equipment (such as IEC, VDE, DIN, ANSI) as well as the applicable national standards are to be observed.
The device has been developed for use in the industrial sector as well as in residential areas and can only be used in such environments. For environments with higher levels of soiling, additional measures, e.g. Installation in an air-conditioned control cabinet required.
Transport, Unpacking, Installation
If the unit is brought into the operating room from a cold environment, condensation may occur, wait until the unit is temperature-controlled and absolutely dry before operating it.
When unpacking, setting up, and before operating the equipment, be sure to read the information on the hardware installation and the specifications of the equipment. These include, for example, dimensions, electrical characteristics, and necessary ambient and climatic conditions, etc.
The fire protection must be ensured in the installed state.
For mounting, the housing must not be damaged. No holes may be drilled in the housing.
For safety reasons, the device with the highest mass should be installed in the lowest position of the rack. Other devices must be placed from the bottom to the top.
The device must be protected against mechanical stress such as vibration or shock.
IMS - LANTIME M500 Date: 19th March 2020 5
Connecting Data Cables
During a thunderstorm, data transmission lines must not be connected or disconnected (risk of lightning).
When wiring the devices, the cables must be connected or disconnected in the order of the arrangement described in the user documentation accompanying the device. Always attach all cables to the plug during connection and removal. Never pull the cable itself. Pulling the cable can cause the cables to disconnect from the plug.
Install the cables in way that they do not constitute a hazard (danger of tripping) and are not damaged, i.e. kinked.
Connecting Power Supply
This equipment is operated at a hazardous voltage. Non-observance of the safety instructions in this manual may result in serious personal injury or property damage.
Before connecting to the power supply, a grounding cable must be connected to the earth connection of the device.
Before operation, check that all cables and lines work properly and are undamaged. Pay particular attention to the facts that the cables do not have kinks or that they are not too short around corners, and no objects are placed on the cables. Also make sure that all connections are secure.
Faulty shielding or cabling will endanger your health (electrical shock) and may destroy other equipment.
Ensure that all necessary safety precautions have been taken. Make all connections to a unit before turning on the power. Observe the safety instructions on the device (see safety symbols).
The metal housing of the device is grounded. It must be ensured that enough air and creepage distances to neighboring voltage-carrying parts are provided during assembly in the control cabinet and no short circuits are caused.
In the case of malfunctions or servicing (e.g. in the event of a damaged housing or power cable or when fluids or foreign objects enter), the current flow can be interrupted. Questions about the house installation, need to be clarified with your house administration.
The power supply should be connected with a short, low-inductance line.
6 Date: 19th March 2020 IMS - LANTIME M500
2 Important Safety Information
AC Power Supply DC Power Supply
• The device is a device of protection class 1 and may only be connected to a grounded outlet (TN system).
•
For safe operation, the device must be protected by an installation fuse of max.
16 A and equipped with a residual current circuit breaker in accordance with the applicable national standards.
• The unit must always be disconnected from the mains and not from the appliance.
•
Devices with mains plugs are equipped with a safety-tested mains cable of the country of use and may only be connected to a grounded shockproof socket, otherwise electric shock may occur.
•
Make sure that the mains socket on the appliance or the mains socket of the house installation is freely accessible to the user so that the mains cable can be pulled out of the socket in case of emergency.
• Outside the assembly group the device must be disconnectable from the power supply in accordance with the provisions of IEC 60950-1
(e.g. by the primary line protection).
•
Installation and disassembly of the power supply plug is only permitted if the assembly group is switched off (e.g. by the primary line protection).
•
The supply lines must be adequately secured and dimensioned.
Connection Cross Section:
1 mm
2
– 2.5 mm
2
17 AWG – 13 AWG
•
The device must be supplied with a suitable disconnector (switch). The separation device must be easily accessible, placed near the device and marked as a separation device for the unit.
IMS - LANTIME M500 Date: 19th March 2020 7
2.4 Protective Conductor- / Ground-Terminal
ATTENTION!
In order to ensure safe operation and to meet the requirements of IEC 62368-1, the device must be correctly connected to the protective earth conductor via the protective earth connection terminal.
If an external earth connection is provided on the housing, it must be connected to the equipotential bonding rail (grounding rail). The mounting parts (without cable) are not included in the scope of delivery.
Note:
Please use a grounding cable
≥
1.5 mm
2
Always pay attention to a correct crimp connection!
8 Date: 19th March 2020 IMS - LANTIME M500
2 Important Safety Information
2.5 Safety during Operation
WARNING!
Avoiding Short-Circuits
Make sure not to get any objects or liquids inside the unit. Electric shock or short circuit could result.
Ventilation Slots
Make sure that the ventilation slots are not covered or dusty, as there is a danger of overheating during operation. Disturbances during operation can result.
Normal Operation
The normal operation and the observance of the EMC limits (electromagnetic compatibility) are only ensured if the housing cover is properly installed and when the doors are closed (cooling, fire protection, shielding against electrical, magnetic and electromagnetic fields).
Switch off in fault / service case
By switching off, the devices are not disconnected from the power supply. In the event of a fault or service case, the devices must be immediately disconnected from all power supplies.
Follow the steps below:
Switch off the device
Disconnect all power plugs
Inform the service
Devices that are connected via one or more uninterruptible power supplies (UPS) remain operational even when the UPS power cord is disconnected. Therefore, you must put the UPS out of operation according to the documentation of the corresponding user documentation.
IMS - LANTIME M500 Date: 19th March 2020 9
2.6 Safety during Maintenance
WARNING!
When you are expanding the device, use only device parts that are approved for the system.
Non-observance may result in injury to the EMC or safety standards and cause malfunction of the device.
If device parts, which are released for the system, are extended or removed there may be a risk of injury in the area of the hands, due to the pull-out forces (approx. 60 N).
The service informs you which device parts may be installed.
The device must not be opened, repairs to the device may only be carried out by the manufacturer or by authorized personnel. Improper repairs can result in considerable danger to the user (electric shock, fire hazard).
Unauthorized opening of the device or of individual parts of the device can also lead to considerable risks for the user and result in a loss of warranty as well as an exclusion of liability.
Danger due to moving parts - keep away from moving parts.
Device parts can become very hot during operation. Do not touch these surfaces!
If necessary, switch off the unit before installing or removing any equipment, and allow it to cool down.
2.7 Handling Batteries
CAUTION!
The lithium battery on the receiver modules has a service life of at least 10 years.
If an exchange is necessary, the following notes must be observed:
The device is equipped with a lithium battery. The battery must not be short-circuited or recharged. Replacement of the lithium battery may only be carried out by the manufacturer or authorized personnel.
Risk of explosion if the battery is not replaced correctly. Replace only with the same or equivalent type recommended by the manufacturer.
When disposing used batteries, observe the local regulations for the disposal of hazardous waste.
10 Date: 19th March 2020 IMS - LANTIME M500
2 Important Safety Information
2.8 Cleaning and Care
ATTENTION!
Do not wet clean the appliance! Penetrating water can cause considerable dangers to the user (e.g., electric shock).
Liquid can destroy the electronics of the device! Liquid penetrates into the housing of the device and can cause a short circuit of the electronics.
Only clean with a soft, dry cloth. Never use solvents or cleaners.
2.9 Prevention of ESD Damage
ATTENTION!
The designation ESD (Electrostatic Sensitive Devices) refers to measures which are used to protect electrostatically endangered components from electrostatic discharge and thus to prevent destruction. Systems and assemblies with electrostatically endangered components usually have the following characteristics:
Indicator for assemblies with electrostatic endangered components
The following measures protect electrostatically endangered components from destruction:
Prepare removal and installation of assemblies
Unload yourself (for example, by touching a grounded object) before touching assemblies.
Ensure that you wear a grounding strap on the wrist when working with such assemblies, which you attach to an unpainted, non-conductive metal part of the system.
Use only tools and devices that are free from static electricity.
Transporting Assemblies
Assemblies may only be touched at the edge. Do not touch any pins or conductors on assemblies.
Installing and Removing Assemblies
Do not touch persons who are not grounded while removing or installing components. This could result in a loss of grounding protection from your electrostatic discharge.
Storing Assemblies
Always keep assemblies in ESD protective covers. These protective covers must be undamaged.
ESD protective covers, which are extremely wrinkled or even have holes, no longer protect against electrostatic discharge.
ESD protective covers must not be low-resistance and metallically conductive if a lithium battery is installed on the assembly.
IMS - LANTIME M500 Date: 19th March 2020 11
2.10 Return of Electrical and Electronic Equipment
ATTENTION!
WEEE Directive on Waste Electrical and Electronic Equipment 2012/19 / EU
(WEEE Waste Electrical and Electronic Equipment)
Separate Collection
Product Category: According to the device types listed in the WEEE Directive, Appendix 1, this product is classified as an IT and communication device.
This product meets the labeling requirements of the WEEE Directive. The product symbol on the left indicates that this electronic product must not be disposed of in domestic waste.
Return and Collection Systems
For returning your old equipment, please use the country-specific return and collection systems available to you or contact Meinberg.
The withdrawal may be refused in the case of waste equipment which presents a risk to human health or safety due to contamination during use.
Return of used Batteries
Batteries marked with one of the following symbols may not be disposed of together with the household waste according to the EU Directive.
12 Date: 19th March 2020 IMS - LANTIME M500
3 The Modular System LANTIME
3 The Modular System LANTIME
LANTIME is a set of equipment composed of a reference clock GNSS, a single-board computer (LAN-CPU) with integrated network card, and a power supply unit, all installed in a metal desktop case and ready to operate.
The interfaces provided by LANTIME are accessible via connectors in the rear panel of the case. Details of the components are described below.
The implemented NTPD distributes the reference time from the GNSS receiver cyclic in the network. Information on the NTPD is monitored on the LC-Display or can be inquired via the network.
The installation of LANTIME is very easy for the system/network administrator. The network address, the netmask and the default gateway have to be configured from the front panel of LANTIME. The network address or the equivalent name of LANTIME has to be shown to all NTP clients in the TCP/IP network.
As well as NTP the Linux system also supports a number of further network protocols: HTTP(S), FTP, SSH and Telnet. Because of this remote configuration or status requests can come from any WEB browser. This access via the network can be deactivated. Changes in the receiver status, errors or other important events are logged either on the local Linux system or on an external SYSLOG-Server. In addition messages can be sent to a data center via SNMP traps or automatically generated e-mails where they can be recorded. Furthermore all alarm messages can be displayed by the large display VP100/20/NET that is accessed via network connection.
In order to avoid a service interruption several LANTIME NTP servers can be installed in the same network to obtain redundancy.
IMS - LANTIME M500 Date: 19th March 2020 13
4 Network Timeserver with GNSS synchronized time base
The
LANTIME
(Local Area Network Time Server) provides a high precision time base to a TCP/IP network
(Stratum-1-Server). The NTP (Network Time Protocol) is used to synchronize all NTP clients with the reference. The several LANTIME variants differ from each other by the time reference and output configuration.
A GNSS receiver (GPS, GLONASS, Galileo or BeiDou), a long wave receiver (like DCF77, MSF or WWVB) or an IRIG time code receiver can be integrated as an internal reference as well as a combination of these references (hybrid system). External references are also possible.
The LANTIME system is a set of equipment composed of a internal receiver, a single-board computer and a power supply, all installed in a metal 19 inch modular chassis and ready to operate. A simplified LINUX operating system is installed on the single-board computers flash disk. Eight push buttons and a display can be used to configure and monitor the time server.
After the network connection has been established the time server can also be configured and monitored remotely from a workstation via TELNET or FTP. An integrated web server enables access to the LANTIME by using an ordinary web browser.
14 Date: 19th March 2020 IMS - LANTIME M500
5 Mounting the Antenna
5 Mounting the Antenna
5.1 GNSS Signal Reception
The satellites of most
Global Navigation Satellite Systems (GNSS)
like
GPS
,
GLONASS
, and
Galileo
are not stationary but circle round the globe in periods of several hours. Only few GNSS systems like the Chinese
Beidou
system work with stationary satellites. Such systems can only be received in certain regions of the Earth.
GNSS receivers need to track at least four satellites to determine their own position in space (x, y, z) as well as their time offset from the GNSS system time (t). Only if the receiver can determine its own position accurately the propagation delay of the satellite signals can also be compensated accurately, which is requirement to yield an accurate time. If the receiver position can only be determined less accurately then the accuracy of the derived time is also degraded.
GNSS satellite signals can only be received directly if no building is in the line-of-sight from the antenna to the satellite. The signals can eventually be reflected at buildings, etc., and the reflected signals can then be received. However, in this case the true signal propagation path is longer than expected, which causes a small error in the computed position, which in turn yields less accurate time.
Since most of the satellites are not stationary, the antenna has to be installed in a location with as much clear view of the sky as possible (e.g. on a rooftop) to allow for continuous, reliable reception and operation.
Best reception is achieved when the antenna has a free view of 8
◦ angular elevation above the horizon. If this is not possible then the antenna should be installed with the best free view to the sky in direction of the equator. Since the satellite orbits are located between latitudes 55
◦
North and 55
◦
South, this allows for the best possible reception.
Meinberg provides their own GPS receivers which operate with an antenna/converter unit and thus allow for very long antenna cables, but some devices also include GNSS receivers which support other satellite systems like GLONASS, or Galileo in addition to GPS. These receivers usually require a different type of antenna equipment which is described in chapter (4.1.2).
IMS - LANTIME M500 Date: 19th March 2020 15
5.1.1 Meinberg GPS Antenna/Converter
5.1.1.1 Introduction
The Meinberg
GPS antenna/converter unit
combines a standard GPS patch antenna with a frequency converter which translates the original 1.5 GHz signal received from the GPS satellites to an intermediate frequency, so a standard coaxial cable type like RG58 can be used for antenna cable lengths up to 300 meters (1000 ft). If a low-loss cable type like RG213 is used then even 700 meters (2300 ft) between receiver and antenna are possible without requirement for an additional amplifier.
Surge protectors
are optionally available and should be used in the antenna line to protect the receiver from high voltages spikes e.g. due to lightning strikes close to the antenna. The antenna/converter unit is remotely powered by the connected GPS receiver via the antenna cable, so no external power supply is required near the location of the antenna if a coaxial cable is used.
If more than a single GPS receiver are to be operated then a
GPS antenna splitter
can be used to distribute the GPS signal from a single antenna. The GPS antenna splitter provides 4 outputs and can be cascaded to supply even more than 4 receivers with the GPS signal.
Alternatively there is also a
GPS Optical Antenna Link (GOAL)
available which uses a fiber optic connection between the antenna and the receiver which allows for a length up to 2000 meters (6500 ft), and provides a high level of insulation and surge protection due to the optical transmission. Since the fiber optic connection is unable to provide the antenna with DC current, an extra power supply is required in this case at the location of the antenna.
Due to the specific requirements for remote powering and frequency conversion the Meinberg GPS equipment is not necessarily compatible with GPS equipment from 3rd party manufacturers.
16 Date: 19th March 2020 IMS - LANTIME M500
5 Mounting the Antenna
5.1.1.2 Mounting and Installation of the GPS Antenna
Proper installation of the GPS antenna/converter unit is illustrated in the figure below: free view to the sky!
GPS Antenna
N-Norm female
N-Norm male
Cable Slot
N-Norm male
N-Norm female as short as possible
Ground lead to PE rail
(Protective Earth)
Cable ca. 1,5 mm Ø fastened at the surge protector
N-Norm female
N-Norm male
Meinberg GPS
N-Norm male or BNC male female female
Figure: GPS Antenna mounted on a pole with a free view of the sky. The optional surge protector keeps high voltage strikes through the antenna cable away from the receiver.
Mounting material (plastic pole and holders, clamps for wall or pole mounting) is shipped with all Meinberg GPS antennae for easy installation. A standard RG58 antenna cable of 20 meters length is included by default. If a different cable length is required then this can be ordered accordingly.
Surge protectors should be installed indoors, directly where the antenna cable comes in.
The optionally delivered protection kit is not for outdoor usage. The ground lead should be kept as short as possible and has to be connected to building’s ground rod.
Up to four GPS receivers can be fed by a single antenna/down-converter unit by using an antenna splitter which can optionally be cascaded. The total length of an antenna cable from the antenna to each receiver must not exceed the specified maximum length according to the cable type. The position of the splitter in the antenna line does not matter.
IMS - LANTIME M500 Date: 19th March 2020 17
Note:
If the antenna cable is assembled locally instead of using a cable shipped with the GPS receiver it has to be made sure that the connectors have been soldered and assembled properly, and that there is no short-circuit in the cable or in one of the connectors. Otherwise GPS reception may be degraded, or the GPS receiver can even be damaged. Mount the antenna at a distance of at least 50 cm from other antennas.
WARNING!
Antenna mounting without effective anti-fall protection
Danger to life due to fall!
- Pay attention to effective working safety when installing antennas!
- Never work without an effective anti-fall equipment!
WARNING!
Working on the antenna system during thunderstorms
Danger to life due to electrical shock!
- Do not carry out any work on the antenna system or the antenna cable if there is a risk of a lightning strike.
- Do not carry out any work on the antenna system if the safety distance to free lines and sequential circuits is exceeded.
18 Date: 19th March 2020 IMS - LANTIME M500
5 Mounting the Antenna
5.1.2 General GNSS Antennae
Some Meinberg devices use alternate GNSS receivers which support other satellite systems like GLONASS,
Galileo or BeiDou, in addition to GPS. These receivers can’t be operated directly with the standard Meinberg antenna/converter unit described in chapter "Meinberg GPS Receiver", so they require a different kind of antenna.
There are two different antenna versions available, one of which is more suited for stationary installation, while the other one should be preferred for mobile applications.
5.1.2.1 GNSS Antenna for Stationary Installation
The
Multi GNSS Antenna
is an active GNSS antenna which can receive the signals of the GPS, GLONASS,
Galileo and Beidou satellite systems. It is very well suited for stationary installations, operates with a 5V DC supply voltage provided by the receiver, and has an integrated surge protection.
The antenna cable length can be up to 70 meters if a H155 low-loss coaxial cable is used.
Mounting and Installation of the GNSS/L1 Antenna
Multi GNSS Antenna
free view to the sky!
Type-N female
Type-N male as short as possible
Connection to earth rail
(Protective Earth) cable diameter ca. 1,5 mm Ø
MEINBERG GNSS
Type SMA male
Figure: Schematic diagram of mounting the Multi GNSS Antenna
female
IMS - LANTIME M500 Date: 19th March 2020 19
WARNING!
Antenna mounting without effective anti-fall protection
Danger to life due to fall!
- Pay attention to effective working safety when installing antennas!
- Never work without an effective anti-fall equipment!
WARNING!
Working on the antenna system during thunderstorms
Danger to life due to electrical shock!
- Do not carry out any work on the antenna system or the antenna cable if there is a risk of a lightning strike.
- Do not carry out any work on the antenna system if the safety distance to free lines and sequential circuits is exceeded.
20 Date: 19th March 2020 IMS - LANTIME M500
5 Mounting the Antenna
5.1.2.2 GNSS Antenna for Mobile Applications
The
RV-76G
is an active GNSS antenna which can receive the signals of the GPS, GLONASS, and Galileo satellite systems. It operates with a 5V DC supply voltage provided by the receiver, and should be preferred for mobile applications. However, the maximum length of the antenna cable is limited depending on the cable type, e.g. 5 meters with RG174/U cable, so this antenna is less suitable for stationary installations.
Figure: Installation drawing RV-76G antenna
WARNING!
Antenna mounting without effective anti-fall protection
Danger to life due to fall!
- Pay attention to effective working safety when installing antennas!
- Never work without an effective anti-fall equipment!
WARNING!
Working on the antenna system during thunderstorms
Danger to life due to electrical shock!
- Do not carry out any work on the antenna system or the antenna cable if there is a risk of a lightning strike.
- Do not carry out any work on the antenna system if the safety distance to free lines and sequential circuits is exceeded.
IMS - LANTIME M500 Date: 19th March 2020 21
5.1.3 Powering up a GNSS Receiver
If both the antenna and the power supply have been connected the system is ready to operate. Depending on the type of oscillator installed in the receiver it takes about 10 seconds (OCXO-LQ) until 3 minutes (OCXO-MQ
/ HQ) until the oscillator has warmed up and reached the required frequency accuracy.
If the receiver has some valid almanac data in its battery buffered memory and the receiver’s position has not changed significantly since its last operation the receiver can determine which satellites are in view. Only a single satellite needs to be received to synchronize and generate output pulses, so synchronization can be achieved at least one minute (OCXO-LQ) until 10 minutes (OCXO-MQ / HQ) after power-up. After 20 minutes of operation the OCXO is fully adjusted and the generated frequencies are within the specified tolerances.
If the receiver position has changed by some hundred kilometers since last operation, the expected satellites may not be in view after power-up. In this case the receiver switches to
Warm Boot
mode where it starts scanning for all possible satellites one after the other. Once the receiver can track at least 4 satellites at the same time it updates its own position and switches to
Normal Operation
.
If no valid data can be found in the battery buffered memory, e.g. because the battery has been disconnected or replaced, the receiver has to scan for satellites and collect the current almanac and ephemeris data first. This mode is called
Cold Boot
, and it takes at least 12 minutes until all required data have been collected.
The reason is that the satellites send all data repeatedly once every 12 minutes. After data collection is complete the receiver switches to
Warm Boot
mode to scan for more satellites, and finally enters
Normal Operation
.
In the default configuration neither pulse and synthesizer outputs, nor the serial ports are enabled after powerup until synchronization has been achieved. However, it is possible to configure some or all of those outputs to be enabled immediately after power-up.
If the system starts up in a new environment (e. g. receiver position has changed or new power supply has been installed) it can take some minutes until the oscillator’s output frequency has been adjusted properly.
In this case the accuracy of the output frequency and pulses is also reduced until the receiver’s control loops have settled again.
On the frontpanel ("Reference Time
→
Info GPS
→
GPS Satellites") as well as via the Web GUI ("Clock
→
Receiver Information") you can check the number of satellites that are in view (i.e. above the horizon) and considered good (i.e. are healthy and can be tracked).
22 Date: 19th March 2020 IMS - LANTIME M500
5 Mounting the Antenna
5.2 Long Wave Signal Reception
5.2.1 Introduction
The longwave antenna
AW02
is a weatherproof and temperature resistant active antenna for outdoor use. It includes a ferrite antenna for reception of the longwave signal, and an amplifier, both assembled in a plastic housing. The standard version has been designed to receive the signal from the German longwave transmitter
DCF77
whose carrier frequency is 77.5 kHz. The DCF77 transmitter is operated by the German Physikalisch-
Technische Bundesanstalt (PTB), and is located in Mainflingen near Frankfurt / Main. Its signal can be received in Germany and adjacent countries.
The variant
AW02-MSF
is available for the longwave transmitter
MSF
which is located in Anthorn / U.K., and transmits the time and frequency maintained by the U.K. National Physical Laboratory (NPL). The signal can be received throughout the U.K., and in wide parts of Northern and Western Europe.
Another variant is the
AW02-WWVB
which has been adapted for the
WWVB
radio station which is located in the United States near Fort Collins, Colorado, and is maintained by U.S. National Institute of Standards and
Technology (NIST).
Even though these antenna variants are slightly different according to the characteristics of the associated transmitter, the basic requirements for installation are identical.
The longwave antennae can be operated with a cable length up to 300 meters (1000 ft) if standard RG58 coaxial cable is used. They are remotely powered by the receiver via the antenna cable, so no external power supply is required near the location of the antenna if a direct coaxial cable is used.
Surge protectors
are optionally available and should be used in the antenna line to protect the receiver from high voltages spikes e.g. due to lightning strikes close to the antenna.
For longer distances from the antenna to the receiver an optional amplifier can be used, which requires an extra power supply. The
BLV
device is an amplifier with integrated surge protector.
Alternatively there is a
DCF Optical Antenna Link (DOAL)
available which uses a fiber optic connection between the antenna and the receiver which allows for a length up to 2000 meters (6500 ft), providing a high level of insulation and surge protection due to the optical transmission. Again, the default device has been designed for DCF77, but there are also variants for MSF and WWVB available. Since the fiber optic connection is unable to provide the antenna with DC current, an extra power supply is required in this case at the location of the antenna.
Longwave receiver equipment from Meinberg has specifically been designed for Meinberg devices and is not necessarily compatible with receivers from 3rd party manufacturers.
IMS - LANTIME M500 Date: 19th March 2020 23
5.2.2 Mounting and Installation of a Longwave Antenna
The careful selection of the antenna location should be at the beginning of each antenna installation. It determines the reception quality and therefore the availability of the DCF77 reception signal decisively. In principle, a DCF77 reception within buildings is possible, however, the DCF77 reception may deteriorate due to metallic objects (e.g. reinforced concrete walls, metal facades, heat protection glazing etc.) that shield or attenuate the reception.
For this reason we always recommend to mount the antenna outside of buildings. This has the advantage that the signal interference distance to electronic devices in buildings is usually enhances and the reliability of the synchronisation is thus significantly increased.
Proper installation of an antenna for DCF77, MSF, or WWVB is illustrated in the figure below:
DCF Antenna
Antenna aligned to the transmitter
N-Norm female
N-Norm male
Cable slot
N-Norm male
N-Norm female as short as possible
Ground lead to PE rail
(Protective Earth)
Cable ca. 1,5 mm Ø fastened at the surge protector
N-Norm female
N-Norm male
Meinberg DCF
N-Norm male or BNC male female female
Figure: Longwave antenna mounted on a wall. The optional surge protector keeps high voltage strikes through the antenna cable away from the receiver.
24 Date: 19th March 2020 IMS - LANTIME M500
5 Mounting the Antenna
The antenna has to be aligned horizontally in longitudinal direction to the transmitter, i.e. in direction to
Mainflingen near Frankfurt / Main in case of DCF77, or in direction to the location of the MSF or WWVB receiver accordingly.
If the antenna is not aligned properly then signal reception is degraded, which can result in a limited time accuracy. The antenna should be installed with a minimum distance of 30 cm away from all metal objects and possibly any microcomputers and electrical devices (engines, electricity, etc.). A distance of several meters from
TV and computer monitors should be considered as well.
The best method to align a longwave antenna is to turn the antenna slowly until the monitored signal level is minimized, and then turn the antenna by 90 o to achieve maximum reception. However, a high signal level alone is not a guarantee for good reception since it can even be caused by electrical noise in the associated frequency range. For standard longwave receivers it is important that the modulation mark is blinking exactly once per second, without intermediate flickering.
DCF77/PZF receivers use correlation techniques to decode the phase modulation provided by DCF77, and with these types of receiver the maximum interference immunity can be found by looking at the autocorrelation parameter displayed in the display menu "PZF-STATE". The displayed value should be as close as possible to
100 % for best reception.
WARNING!
Antenna mounting without effective anti-fall protection
Danger to life due to fall!
- Pay attention to effective working safety when installing antennas!
- Never work without an effective anti-fall equipment!
WARNING!
Working on the antenna system during thunderstorms
Danger to life due to electrical shock!
- Do not carry out any work on the antenna system or the antenna cable if there is a risk of a lightning strike.
- Do not carry out any work on the antenna system if the safety distance to free lines and sequential circuits is exceeded.
IMS - LANTIME M500 Date: 19th March 2020 25
5.2.3 DCF77 / PZF Receiver
If both the antenna and the power supply have been connected the system is ready to operate. After power up it takes up to three minutes for the receiver to synchronize, if reception is good enough. A high "Correlation &
Field" is an indicator for a good signal quality.
To check the field strength and the signal correlation value, select in the Front Panel "Reference Time
→
Info PZF
→
Correlation & Field".
The correlation "State" starts in a "raw" mode, when the receiver tries to find the initial correlation. When good correlation has been found the receiver checks it 20 times: this state is labeled "check" and the correlation value is increased from 1 to 20. If the correlation quality stays good the state changes to the "fine" mode. The signal strength should be 100 or higher.
If no correlation with the incoming signal is possible then the clock changes automatically to DCF77 AM reception mode and tries to decode the second marks.
For further detailed clock configuration, please refer to the Chapter
??
".
5.3 Cable Types
Antenna Type Cable Type Maximum Cable Length
Meinberg GPS Antenna RG58
Meinberg GPS Antenna RG213
Multi GNSS Antenna
Long Wave Antenna *
Fiber Optic **
Belden H155
RG58
Fiber Optic
300 m / 1000 ft
700 m / 2300 ft
70 m / 230 ft
300 m / 1000 ft
2000 m / 6500 ft
* DCF77 (Germany, Middle Europe), MSF (GB), WWVB (US), JJY (Japan)
** Fiber Optic - GOAL - GPS Optical Antenna Link; DOAL - DCF Optical Antenna Link
26 Date: 19th March 2020 IMS - LANTIME M500
6 Quick Start
6 Quick Start
When the unit is switched on, the following message appears on the display, which counts up a number of points during the boot process:
LANTIME OS7
[7.00.006-STD]
HW Init ...
The NTP time server is then ready for operation and the display switches to the main menu where some important status information will be displayed:
MRS: Sync to GNS
NTP: Offs. 2us
Thu, 23.01.2020
UTC 12:00:00
If the GNSS receiver has not synchronized (Refclock LED still red after 12 minutes), check the number of visible/good satellites by pressing
↓
,
→
,
↓ from the main menu.
SV CONSTELLATION
SVs in view: 10
Good Svs : 9
Sel:09 30 29 0
At least four satellites must be found for the GNSS clock to synchronize. The antenna must have free view to the horizon.
For first time installation enter TCP/IP address, netmask and default gateway. To get an overview of the current configuration press F2 from main menu. Press F2 again to enter setup configuration page. Please ask your administrator for propper TCP/IP configuration:
->Interfaces <
Global Cfg.
Services
Add Interf.
OK
Use Up and Dow
to select Port
lan0:0 #1of5
>172.100.100.10
Then select "Interfaces"
→
"Lan Port", and press the OK button 3 times. Then use the arrow keys to enter the
TCP/IP address, netmask and a default gateway if necessary.
>IPv4 Parameter
IPv6 Parameter
Link Mode
OK
> LAN Address
LAN Netmask
Gateway
OK
Set LAN Addrese
IPv4 lan0:0
->DHCP: enable
172.28.8.7
After this all further settings can be done via network interface, either by using a WEB browser or a Telnet
Session.
Default user: root
Default password: timeserver
IMS - LANTIME M500 Date: 19th March 2020 27
7 Booting the GNSS receiver
If both the antenna and the power supply have been connected, the system is ready to operate. About 2 minutes after power-up the receiver’s oscillator has warmed up and operates with the required accuracy. If the receiver finds valid almanac and ephemeris data in its battery buffered memory and the receiver’s position has not changed significantly since its last operation, the receiver can determine which satellites are presently in view.
Only a single satellite must be received to synchronize and generate output pulses, so synchronization can be achieved within one minute after power-up.
If the receiver position has changed by more than one hundred kilometers since last operation, the satellites’ real elevation and Doppler might not match those values expected by the receiver, and this will force the receiver to start scanning for satellites. This mode is called
Warm Boot
because the receiver can obtain ID numbers of existing satellites from the valid almanac. When the receiver has found four satellites in view it can update its new position and switch to
Normal Operation
. If the almanac has been lost (because the battery has been disconnected) the receiver has to scan for a satellite and read in the current almanac. This mode is called
Cold Boot
. It takes 12 minutes until the new almanac is complete and the system switches to Warm Boot mode, scanning for other satellites.
28 Date: 19th March 2020 IMS - LANTIME M500
8 Booting the Single Board Computer
8 Booting the Single Board Computer
The LINUX operating system is loaded from a packed file on the flash disk of the single board computer to a
RAM disk. All files of the flash disk are stored in the RAM disk after booting. This guarantees that the file system is in a defined condition after restart. This boot process takes approximately two minutes.
After starting the LINUX system, the network function is initiated and the communication program with the receiver and the NTPD (NTP daemon) is started. Then NTPD starts synchronization with the reference clocks
(usually the hardware clock of the single board computer and the integrated receiver clock).
For the synchronization of the NTPD with the time reference it is necessary that the receiver is synchronous with the incoming time signal.
Because of the internal time of the NTP which is adjusted by a software PLL (phase locked loop) it takes a certain time to optimise this offset. The NTPD tries to keep the offset below +-128 ms; if the offset becomes too large, the system time is set with the receiver’s time. Typically values for the offset are +-5 ms after the
NTPD has already synchronized.
IMS - LANTIME M500 Date: 19th March 2020 29
9 Configuration User Interface
There are several ways to configure the LANTIME parameters:
Command Line Interface (CLI) via TELNET
Command Line Interface via SSH
Command Line Interface via serial terminal in front panel
(38400/8N1/VT100)
HTTP Interface
Secure HTTP Interface (HTTPS)
Front panel LCD/VFD Interface (except LANTIME M100 and IMS S-Chassis variants)
SNMP Management
In order to be able to configure the time server via the web interface or a telnet/SSH connection, an IP address has to be assigned via the front panel keys and LC/VF display (for automatic assignment possibilities please refer to: DHCP IPv4 or AUTOCONF IPv6). LANTIME variants without a display can be configured using the serial terminal interface (labeled “Term” or “Terminal”) The termin program should be set to 38400Baud /
8N1 – VT100 emulation. Once the IPv4 address, net mask and IPv4 GATEWAY have been set up or the network interface has been automatically configured with DHCP/Autoconf, further configuration changes can be done via a network connection:
To set up a TELNET connection the following commands are entered (replace
198.168.10.10
with the IP of your LANTIME):
telnet 198.168.10.10
// LANTIME IP address
user: root password: timeserver
With “setup” the configuration program is started.
To set up a SSH connection the following commands are entered:
// LANTIME IP address
password: timeserver
With “setup” the configuration program is started.
To set up a HTTP connection the following address is to enter in a web browser:
http://198.168.10.10
// LANTIME IP address
password: timeserver
To set up a Secure HTTP (HTTPS) connection the following address is entered in a web browser:
https://198.168.10.10
// LANTIME IP address
password: timeserver
30 Date: 19th March 2020 IMS - LANTIME M500
10 The Menues in Detail
10 The Menues in Detail
10.1 Root Menu
The root menu is shown when the receiver has completed initialization after power-up.
With the four arrow buttons and the buttons "OK", "ESC", "F1" and
"F2" the navigation and setting of parameters can be ma-naged. Main menu can be reached by pressing
"ESC" some times. The main menu reflect some of the main parameters of the time server. First line shows the status of the Reference Clock, the NTP offset and the date and time.
In case of using a GNSS receiver (GPS, GNS, GNM) the text "GNS: NORMAL MODE" might be replaced by "COLD BOOT", "WARM BOOT" or "UPDATE AL-
MANAC". If the antenna is disconnected or not working properly, the text "ANTENNA FAULTY" is displayed instead.
Current time and date of the timeserver with the name of the time zone (NTP uses UTC time zone) will be monitored in the bottom line. If the "IGNORE LOCK" option is enabled an "*" will be shown behind the time.
The multicolor LEDs will reflect the current state of the device:
„Ref. Time“
green: the reference clock (e.g. integrated GPS) produce valid time.
red: the reference clock produce no valid time (e.g. not synchronized)
„Time Service“
green: NTP has been synchronized to reference clock.
red: NTP is not synchronous to reference clock or sync to „local clock“
„Network“
green: all watched network ports has been “link up“ detected red: at least one of the watched network ports (look at „Setup Device
Parameter / Check Network Linkup“) is not connected
„Alarm“
off: no error at moment red: general error – more information will be shown on display.
IMS - LANTIME M500 Date: 19th March 2020 31
When pressing "F1" from main menu a short description for menu navigation will be displayed:
Use -> and <- to
select different
main menus. Use
^ and v to enter
When pressing the "OK" button from main menu the version of the LANTIME software, the NTP and the LINUX kernel version will be displayed.
E900 V7.0
SN : 0608120010
CPU : 0047115827
Bld.: 7.00.006
The following main menus will be displayed when pressing the "
↑
" and "
↓
" arrow buttons:
E900 V7.0
SN : 0608120010
CPU : 0047115827
Bld.: 7.00.006
->Ref. Time
Time Service
Network
System
Ref. Time
->Time Service
Network
System
Ref. Time
Time Service
->Network
System
Ref. Time
Time Service
Network
->System
-> Setup MRS
Info GPS
Setup GPS
Set Outputs
-> NTP Settings<-
PTP IEEE1588
-> Interfaces <
Global Cfg.
Services
Add Interf.
> Time Zone
Options
System Info
Fan Control
32 Date: 19th March 2020 IMS - LANTIME M500
11 LANTIME Web Interface
11 LANTIME Web Interface
The LANTIME offers two different options for configuration and status management: An extensive and powerful web interface and SNMP. In order to use the SNMP features of your LANTIME, you need special software like management systems or SNMP clients. In order to use the web interface, all you need is a web browser
(LANTIME supports a broad range of browsers, we recommend Mozilla Firefox).
The WEB Interface
The web interface can be used by more than one user in parallel, but the two or more running sessions may influence each other. We explicitly do not recommend the parallel usage of the configuration interfaces.
Connect to the web interface by entering the following address into the address field of your web browser:
http://198.168.10.10
(You need to replace 198.168.10.10 with the IP address of your LANTIME).
Default Login
User:
Password: root timeserver
IMS - LANTIME M500 Date: 19th March 2020 33
If you try a secure connection via HTTPS, then your WEB Browser generates an alarm message. You have to accept the HTTPS certificate which the LANTIME provides to you. Modification of this certificate is possible during the first session (see chapter The Web Interface - Security - HTTPS Certificate).
After entering the right password, the main menu page shows up. This page contains an overview of the most important configuration and status parameters for the system.
System information and Status messages:
Information about LANTIME model and software
Network information - first interface
Receiver status
NTP status
Last messages
By using the navigation on top of the page you can reach a number of configuration menus, which are described in the next chapters.
34 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12 Attachment: Technical Information
12.1 Technical Specifications LANTIME / IMS-M500
Housing:
Metal desktop case, DIN Mounting Rail
117,5 mm (4.63 inch) x 193,2 mm (7.61 inch) x 159,8 mm (6.29 inch) / W x H x D with module handles and connectors
117,5 mm (4.63 inch) x 227,3 mm (8.95 inch) x 159,8 mm (6.29 inch) / W x H x D max. 85 %
IP20
Humidity:
Protection Rating:
Ambient
Temperature:
Storage Temperature:
Power Supply:
0 ... 50
◦
C / 32 ... 122
◦
F
-20...70
◦
C / -4 ... 158
◦ see power supply type
Figure: M500 - physical dimensions
IMS - LANTIME M500 Date: 19th March 2020 35
1 2 3 4 5
-
+
100-200 V
100-240 V / 50-60Hz
Variant: 100-240 V AC / 100-200 V DC
1: VCC -
2: not connected
3: GND (Ground)
4: not connected
5: VCC +
1 2 3 4 5
-
20-60 V
+
Variant: 20-60 V DC
1: not connected
2: VCC -
3: GND (Ground)
4: VCC +
5: not connected
36 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.2 Available Modules and Connectors
Name Type Signal Cable
——————————————————————————————————————————–
Front Connectors
Terminal
USB
9pin. D-SUB male
USB Port
RS-232 shielded data line
USB Stick
Rear Connectors
Power supply 5pin. DFK male 100-240 V AC (50-60 Hz)
100-200 V DC
5pin. MSTB clamp
GPS Antenna or
Multi GNSS
Antenna
BNC
SMA
10 MHz / 35.4 MHz
L1 Frequency band: shielded coaxial line shielded coaxial line
GPS/GLONASS/Galileo/BeiDou
Terminal
USB
Network LAN-CPU
RJ45
USB Port
RJ-45
SFP
CAB-CONSOLE-RJ45 shielded data line shielded data line 10/100 MBit
1000Base-T
Module Options
——————————————————————————————————————————–
Power
DC power supply 5pin. DFK male 20-60 V DC or
10-36 V DC
5pin. MSTB clamp
Network
LNE-GbE shielded data line RJ45
SFP
RJ45/SFP
10/100/1000 MBit
1000BASE-T
10/100/1000 MBit shielded data line HPS100
Signal Outputs:
CPE - configurable PPOs, serial TS, TC FO ...
shielded data line
BPE - fixed
LIU:
BNC, DFK-2,
DSUB9, ST
BNC, ST
RJ45 jack
BNC
LNO
Signal Inputs:
ESI
BNC
BNC, RJ45
MRI BNC
Chassis Expansion Slot
CES DFK-3
PPS, 10 MHz, TC ...
balanced
120 Ohm (Clock) unbalanced
75 Ohm (Bits)
10 MHz sine
E1/T1, var. Freq.
10 MHz, PPS, IRIG, PPOs
Error Relay shielded data line shielded data line shielded data line shielded data line shielded data line shielded data line
IMS - LANTIME M500 Date: 19th March 2020 37
12.3 TERMINAL (Console)
To connect a serial terminal (according to the device model), use the 9pin RS-232 D-Sub connector in the front panel or the RJ45 connector of the LAN-CPU. Via the serial terminal connection it is possible to configure parameters with a command line interface. You have to use a NULL-MODEM cable (D-Sub) or a
CAB-CONSOLE-RJ45 cable to establish a connection to your PC or Laptop computer.
You can use e.g. the standard Hyperterminal program shipped with your Windows operating system. Configure your terminal program with 38400 Baud, 8 Databits, no parity and 1 Stopbit. The terminal emulation have to set to VT100. After connecting to the timeserver there will be displayed the login message (press RETURN for first connection; default user: root password: timeserver).
12.4 USB Connector
Most LANTIME M-Series products come with a USB interface for connectiong a USB storage device, e.g. a
USB stick. This USB stick can be used for different tasks in combination with the LANTIME:
USB
•
Transfer configuration parameters
•
between different LANTIMEs
•
Keypad locking for secure
•
using the keypad of the LCD
•
Transfer of log files
•
Install Software Updates
•
Upload and download secure certificates
•
(SSL, SSH) and passwords
38 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.5 Replacement or Installation of a Hot-pluggable IMS Module
If the system is supplied with an antenna and antenna cable, it is advisable to first mount the antenna in a suitable location (see chapter Antenna Mounting) and lay the antenna cable.
Please use a Torx screwdriver (T8 x 60) for removal and installation of the module.
1.
1.
2.
3.
4.
Follow the safety instructions at the beginning of this manual!
Remove the two marked Torx screws from the module holder plate or the cover plate of the empty slot.
(Only for an already built-in module)
Pull the module carefully out of the holding rail. Note that the module is firmly anchored in the connector block of the housing. You need a certain amount of force to release the module from this link. Once the connection to the connector block of the system’s backplane is loosened, the module can be easily pulled out.
When installing the new IMS module, please ensure that the board is correctly inserted into the two guide rails of the system housing. Non-observance can cause damage to the module and the chassis.
Make sure that the module is securely locked into the connector block before you fasten the two screws.
Now you can put the installed module into operation.
Attachment points of an 1U IMS system
IMS - LANTIME M500 Date: 19th March 2020 39
12.5.1 Important Hints for hot-pluggable IMS Modules
The following points should be strictly observed when replacing IMS modules during operation. Not all IMS modules are fully hot-pluggable. Of course, it is not possible to replace a power supply unit of a non-redundant system without first having installed a second power source in operational mode.
The following applies to the individual IMS slots:
PWR:
"hot swappable" If you operate your system with only one power supply, a second power supply must be installed before removing/replacing it to keep your system functioning.
I/O, ESI and MRI Slots:
"hot swappable".
CLK1, CLK2:
"hot swappable" Afer the exchange or the installation of a clock module a rescan of the reference clocks
(Rescan Refclocks) must be executed in the web interface menu "System".
CPU
RSC/SPT
not "hot swappable" not "hot swappable"
The central management unit must be disconnected from mains before replacement.
The RSC switching card must be disconnected from the mains before the replacement.
40 Date: 19th March 2020 IMS - LANTIME M500
12.6 IMS Module Options
12.6.1 Power Supply 100-240 V AC / 100-200 V DC
Connector Type:
Pin Assignment:
5-pol. DFK
1: N/-
2: not connected
3: PE (Protective Earth)
4: not connected
5: L/+
Input Parameter
——————————————————————————
Nominal Voltage Range:
U
N
= 100-240 V
∼
100-200 V
Maximum Voltage Range:
Nominal Current:
I
U
N
N
= 90-265 V
∼
90-250 V
= 1.0 A
∼
0.6 A
Nominal Frequency Range:
f
N
Maximum Frequency Range:
f max
= 50-60Hz
= 47-63Hz
Output Parameter
——————————————————————————
Maximum Power:
P max
= 50 W
Maximum thermal energy:
E therm
= 180.00 kJ/h (170.61 BTU/h)
12 Attachment: Technical Information
1
U
N
= 100-240 V
U max
= 90 -265 V
I
N
= 1.0 A f
N
= 50 - 60Hz
U
N
= 100-200 V
U max
= 90 -250 V
I
N
= 0.6 A
N/-
5
PWR AD10
L/+
WARNING!
This equipment is operated at a hazardous voltage.
Danger to life due to electrical shock!
- Only qualified personnel (electricians) may connect the device.
- Never work with open terminals and plugs while the power is on.
- All connectors must be protected against touching live parts with a suitable plug housing!
- Note: Always ensure safe wiring!
- Important: The device must be connected to a proper grounding (PE).
IMS - LANTIME M500 Date: 19th March 2020 41
12.6.2 Power Supply 20-60 V DC
Connector:
5pin DFK
Pin Assignment:
1:
2:
3:
4:
5: not connected
V
IN
-
PE (Protective Earth)
V
IN
+ not connected
Input Parameter
——————————————————————————–
Nominal voltage range: U
N
= 24-48 V
Maximum voltage range: U max
= 20-60 V
Nominal current: I
N
= 2.1 A
Output Parameter
——————————————————————————–
Maximum power: P max
= 50 W
Maximum thermal energy: E therm
= 180.00 kJ/h (170.61 BTU/h)
2
4
PWR DC20
U
N
= 24-48 V
U max
= 20-60 V
I
N
= 2.1 A
42 Date: 19th March 2020 IMS - LANTIME M500
12.6.3 Power Supply 10-36 V DC
Connector:
5pin DFK
Pin Assignment:
1:
2:
3:
4:
5: not connected
V
IN
-
PE (Protective Earth)
V
IN
+ not connected
Input Parameter
——————————————————————————–
Nominal voltage: U
N
= 24 V
Maximum voltage range: U max
= 10-36 V
Nominal current: I
N
= 2.5 A
Output Parameter
——————————————————————————–
Maximum power: P max
= 50 W
Maximum thermal energy: E therm
= 180.00 kJ/h (170.61 BTU/h)
12 Attachment: Technical Information
2
4
PWR DC10
U
N
= 24 V
U max
= 10-36 V
I
N
= 2.5 A
IMS - LANTIME M500 Date: 19th March 2020 43
12.6.4 GPS Clock
Receiver:
Accuracy of pulse outputs:
12 channel GPS C/A-code receiver
Depends on oscillator option:
< +-100 ns (TCXO, OCXO LQ)
< +-50 ns (OCXO-SQ, -MQ, -HQ, -DHQ)
Antenna Cable:
Cable Length:
Antenna Connector:
Input GPS:
shielded coax max. 300 m to RG58, max. 700 m to RG213
BNC female
Antenna circuit
1000 V DC insulated
Local Oscillator to Converter Frequency:
10 MHz
1
First IF Frequency:
35.4 MHz
1
Power Requirements:
Figure right:
1) these frequencys are transfered via the antenna cable.
15 V, 100 mA (via antenna cable)
GPS receiver and
GPS with XHE-SPI connector (option)
LED Indicators
Init: blue: green: green: Nav.:
Ant:
Fail: red: yellow: red: while the receiver passes through the initialization phase the oscillator has warmed up positioning successfully antenna faulty or not connected the clock is synchronized by an external Signal - MRS mode (PPS, IRIG ...) time has not synchronized
44 Date: 19th March 2020 IMS - LANTIME M500
Pin Assignment of the DSUB9 Connectors (male):
Pin 2: RxD
Pin 3: TxD
Pin 5: GND
Synchronization with PPS + string:
Pin 1: PPS
Pin 2: String
*
*
The following timestrings (time telegrams) can be used:
NMEA RMC
NMEA ZDA
Meinberg Standard
Uni Erlangen
Pin Assignment of the optional XHE-SPI Connectors:
A1: PPS In
A2: PPS Out
Pin 1: SCL_Out (SPI Clock)
Pin 2: CS (Chip Select)
Pin 3: MOSI (Master Out, Slave In)
Pin 4: MISO (Master In, Slave Out)
Pin 5: GND
Attention:
Use this plug only to connect a MEIN-
BERG IMS-XHE
Rb
Rubidium expansion chassis.
12 Attachment: Technical Information
COM
IMS - LANTIME M500 Date: 19th March 2020 45
12.6.5 GNSS Clock
Type of receiver:
Accuracy of Pulses:
Synchronization Time:
Antenna Cable:
Cable Length:
Type of Connector:
Power Requirements:
GPS / GLONASS / Galileo / Beidou receiver
Number of channels: 72
Frequency band: GNSS L1
1575.42 +- 10 MHz / 1602-1615 MHz
Dependant on oscillator option
< +-100nsec (TCXO, OCXO-LQ)
< +-50ns (OCXO-SQ, -MQ, -HQ, -DHQ)
Max. 1 minute in normal operation mode, approx. 12 minutes after a cold start shielded coax cable (Belden H155 PE) max. 70m low-loss cable female SMA connector
5 V DC (via antenna cable)
LED Indicators
Init
blue: green: green:
Nav.
Ant
Fail
while the receiver passes through the initialization phase the oscillator has warmed up positioning successfully red: antenna faulty or not connected yellow: the clock is synchronized by an external
Signal - MRS mode (PPS, IRIG ...) red: time has not synchronized
46 Date: 19th March 2020 IMS - LANTIME M500
Pin Assignment of the DSUB9 Connectors (male):
Pin 2: RxD
Pin 3: TxD
Pin 5: GND
Synchronization with PPS + string:
Pin 1: PPS
Pin 2: String
*
*
The following timestrings (time telegrams) can be used:
NMEA RMC
NMEA ZDA
Meinberg Standard
Uni Erlangen
Pin Assignment of the optional XHE-SPI Connectors:
A1: PPS In
A2: PPS Out
Pin 1: SCL_Out (SPI Clock)
Pin 2: CS (Chip Select)
Pin 3: MOSI (Master Out, Slave In)
Pin 4: MISO (Master In, Slave Out)
Pin 5: GND
Attention:
Use this plug only to connect a MEIN-
BERG IMS-XHE
Rb
Rubidium expansion chassis.
12 Attachment: Technical Information
COM
IMS - LANTIME M500 Date: 19th March 2020 47
12.6.6 GNS-UC Clock
GNSS receiver with UpConverter for operation on a standard
Meinberg GPS antenna/converter unit.
Type of receiver:
Accuracy of Pulses:
Synchronization Time:
Antenna Cable:
Cable Length:
Type of Connector:
Power Requirements:
GPS / Galileo receiver
Number of channels: 72
GPS: L1C/A
Galileo: E1B/C
Dependant on oscillator option
< +-100nsec (TCXO, OCXO-LQ)
< +-50ns (OCXO-SQ, -MQ, -HQ, -DHQ)
Max. 1 minute in normal operation mode, approx. 12 minutes after a cold start shielded coax cable max. 300m female BNC connector
15 V, 100 mA (via antenna cable)
LED Indicators
Init
blue:
Nav.
Ant
Fail
green: green: while the receiver passes through the initialization phase the oscillator has warmed up positioning successfully red: antenna faulty or not connected yellow: the clock is synchronized by an external
Signal - MRS mode (PPS, IRIG ...) red: time has not synchronized
GNS 181-UC GNS 181-UC
Antenna Antenna
48 Date: 19th March 2020 IMS - LANTIME M500
Pin Assignment of the DSUB9 Connectors (male):
Pin 2: RxD
Pin 3: TxD
Pin 5: GND
Synchronization with PPS + string:
Pin 1: PPS
Pin 2: String
*
*
The following timestrings (time telegrams) can be used:
NMEA RMC
NMEA ZDA
Meinberg Standard
Uni Erlangen
Pin Assignment of the optional XHE-SPI Connectors:
A1: PPS In
A2: PPS Out
Pin 1: SCL_Out (SPI Clock)
Pin 2: CS (Chip Select)
Pin 3: MOSI (Master Out, Slave In)
Pin 4: MISO (Master In, Slave Out)
Pin 5: GND
Attention:
Use this plug only to connect a MEIN-
BERG IMS-XHE
Rb
Rubidium expansion chassis.
12 Attachment: Technical Information
COM
IMS - LANTIME M500 Date: 19th March 2020 49
12.6.7 GNM Clock
Receiver Type
Frequency Band:
Accuracy of Pulses:
Synchronization Time:
Signal Gain
Antenna Gain:
Connection Type:
Cable:
Power Supply
Nominal Impedance:
Backup Battery Type:
Figure right:
184-channel
GPS, GLONASS, Galileo, Beidou
GPS:
L1C/A (1575.42 MHz)
L2C (1227.60 MHz)
GLONASS:
L1OF (1602 MHz + k*562.5 kHz
L2OF (1246 MHz + k*437.5 kHz k = –7,..., 5, 6
Galileo:
E1-B/C (1575.42 MHz)
E5b (1207.140 MHz)
Beidou:
B1I (1561.098 MHz) B2I (1207.140 MHz)
Dependant on oscillator option:
< +-100ns (TCXO, OCXO LQ)
< +-50ns (OCXO-SQ, -MQ, -HQ, -DHQ)
<1 minute in normal operation mode, approx. 1 minutes after a cold start
(12 minutes in GPS only mode)
40 dB
≥
3.5 dBic /
≥
3 dBic
SMA female / Antenna shielded coaxial line (Belden H155)
Cable lenght: deductible up to max. 70 m
5 V DC (via antenna cable)
50 Ohm
CR2032 – button cell lithium battery.
The hardware clock and the RAM are battery buffered. When the main power supply fails, the hardware clock runs free on quartz basis and the almanac data is stored in the RAM.
Life time of lithium battery: min. 10 years
GNM Multiband receiver and
GNM with XHE-SPI connector (optional)
50 Date: 19th March 2020 IMS - LANTIME M500
LED Indicators
Init
blue: green: green:
Nav.
Ant
Fail
while the receiver passes through the initialization phase the oscillator has warmed up positioning successfully red: antenna faulty or not connected yellow: the clock is synchronized by an external
Signal - MRS mode (PPS, IRIG ...) red: time has not synchronized
Pin Assignment of the DSUB9 Connectors (male):
Pin 2: RxD
Pin 3: TxD
Pin 5: GND
Synchronization with PPS + string:
Pin 1: PPS
Pin 2: String
*
*
The following timestrings (time telegrams) can be used:
NMEA RMC
NMEA ZDA
Meinberg Standard
Uni Erlangen
Pin Assignment of the optional XHE-SPI Connectors:
A1: PPS In
A2: PPS Out
Pin 1: SCL_Out (SPI Clock)
Pin 2: CS (Chip Select)
Pin 3: MOSI (Master Out, Slave In)
Pin 4: MISO (Master In, Slave Out)
Pin 5: GND
Attention:
Use this plug only to connect a MEIN-
BERG IMS-XHE
Rb
Rubidium expansion chassis.
12 Attachment: Technical Information
COM
IMS - LANTIME M500 Date: 19th March 2020 51
12.6.8 PZF Clock
Receiver:
High accuracy DCF77 correlation receiver
Two seperate receiver channels for signal conversion and best aquisition and tracking of the DCF77 signal (AM + PZF).
Synchronization Time:
2-3 minutes after correct DCF77 signal reception
Frequency Outputs:
Accuracy depends on oscillator
(standard: OCXO-SQ)
Pulse Outputs:
Pulse per second (PPS) and pulse per minute (PPM).
TTL level, pulse width: 200msec
Accuracy of pulsees:
Better than
±
50 µ sec after synchronization and
20 minutes of operation.
Backup Battery Type:
CR2032 - button cell lithium battery
When main power supply fails, hardware clock runs free on quartz basis, almanac data is stored in RAM
Life time of lithium battery min. 10 years
Oscillator Options:
Antenna Connector:
OCXO-SQ, OCXO-MQ, OCXO-HQ, OCXO-DHQ
BNC female
Antenna Cable:
Cable Length:
shielded Coax cable
300 m with standard coax cable
Current Consumption:
+5 V 1,1 A to 1,4 A (depends on oscillator)
PZF 180
LED Indicators
Init:
Field:
Ant Fail:
Fail: blue: green: red: red: while the receiver passes through the initialization phase minimum field strength needed for the correlation receiption is detected antenna faulty or not connected time is not synchronized
Pin Assignment of the DSUB9 Connectors (male):
Pin 2: RxD
Pin 3: TxD
Pin 5: GND
Synchronization with PPS + String:
Pin 1: PPS
Pin 2: RxD
COM
Antenna
52 Date: 19th March 2020 IMS - LANTIME M500
12.6.9 TCR Clock - Time Code Reader and Generator
The IMS - TCR180 serves to decode and generate modulated (AM) and unmodulated (DC Level Shift) IRIG-
A/B/G, AFNOR, C37.118 or IEEE1344 time codes.
AM-codes are transmitted by modulating the amplitude of a sine wave carrier, unmodulated codes by variation of the width of pulses.
As standard the clock module TCR180 is equipped with a OCXO-SQ (Oven Controlled Xtal Oscillator) as master oscillator to provide a high accuracy in holdover mode of ± 1E-8. Optionally an OCXO-MQ or OCXO-
HQ is available for better accuracy.
Receiver:
Automatic gain control within the receive circuit for modulated codes allows decoding of IRIG-A/B/G,
AFNOR, C37.118 or IEEE1344 signals with a carrier amplitude of 600 mV pp to 8 V pp
. The input stage is electrically insulated and has an impedance of either 50 Ω , 600 Ω or 5 k Ω , selectable by a jumper.
DC Level Shift Input insulated by optocoupler with internal series resistance of 220 Ω .
12 Attachment: Technical Information
LED Indicators
Init
Data
blue: off: green: while the receiver passes the initialization phase
Oscillator not warmed up the internal timing of the TCR180 is synchronized to the received time code (Lock) green: red: correct time code detected no correct time code detected yellow: TCR180 synchronized by external source (MRS) yellow/green (flashing): Holdover mode (MRS), IRIG Code available yellow/red (flashing): Holdover mode (MRS), IRIG Code not available
Tele
Fail
green: red: yellow (flashing): red: off: telegramm consistent telegramm inconsistent
Jitter too large the internal timing of the TCR180 is in holdover mode the internal timing of the TCR180 is synchronized to the received time code (Lock)
IMS - LANTIME M500 Date: 19th March 2020 53
Generator:
The generator of TCR180 is capable of producing time codes in IRIG-A/B/G, AFNOR, C37.118 or IEEE1344 format. The codes are available as modulated (3 V pp
(TTL into 50 Ω and RS-422).
/1 V pp into 50 Ω ) and unmodulated (DC Level Shift) signals
Regarding time code and its offset to UTC, the receiver and the generator can be configured independantly.
Thus TCR180 can be used for code conversion.
Key Features
•
IRIG Generator
•
4 programmable Pulse Outputs
•
Frequency Synthesizer
•
Battery Type CR2032
Figure 1: Jumper Settings: 600
Ω
Technical Specifications
Receiver Input
AM-input (BNC-connector): insulated by a transformer impedance settable 50
Ω
, 600
Ω
, 5 k
Ω
600 mV
PP to 8 V
PP
(Mark)
Input Signal
DC Level Shift input: insulated by photocoupler internal series resistance: 220 Ω maximum forward current: 60 mA diode forward voltage: 1.0 V...1.3 V
Decoding
Decoding of the following telegrams possible: IRIG-A132 / A133 / A002 / A003
IRIG-B123 / B122 / / B126 / B127 / B002 / B003 / B006 / B007
IRIG-G142 / G146 / G002 / G006
AFNOR NFS 87-500
C37.118
IEEE1344
Accuracy of
Time Base
Required Accuracy of
Time Code Source: max 100 µ sec Jitter / offset 1E-5
54 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
Holdover Mode
Automatic switching to crystal time base accuracy approximately 1E-8 if decoder has been synchronous for more than 1h
Backup Battery
If the power supply fails, an onboard realtime clock keeps time and date information important system parameters are stored in the RAM of the system lifetime of the Lithium battery at least 10 years
Generator Outputs
Modulated output: unbalanced sine carrier, 1 kHz
3 V
PP
(MARK), 1 V
PP
(SPACE) into 50 Ω unmodulated outputs(DCLS):
TTL into 50
Ω
, RS-422
Pulse Outputs
Four programmable outputs, TTL level
Default settings: active only ’if sync’
PPO_0 - PPO_3: Idle (not active)
Timer
Single Shot
Pulse Per Second, Per Minute, Per Hour (PPS, PPM, PPH)
DCF77 Marks
Time Sync
DCLS Time Code
Synthesizer Frequency
Accuracy of Pulses
Better than ± 1 µ sec after synchronization and 20 minutes of operation
Serial Port
Configurable RS-232 interface
Baudrates:
Framing:
Mode of operation:
Time telegram:
300 Bd...115200 Bd
7E2, 8N1, 8N2, 8E1, 7N2, 7E1, 801 string per second string per minute string on request
Meinberg Standard, Uni Erlangen, SAT, Meinberg Capture,
ION, Computime, SPA, RACAL
Capture Inputs
Triggered by falling TTL slope
Pulse repetition time:
Resolution:
1.5 msec min.
800 nsec
IMS - LANTIME M500 Date: 19th March 2020 55
Master Oscillator
OCXO-SQ (Oven Controlled Oscillator)
Accuracy compared to
IRIG-reference: sync. and 20 min. of operation:
±
5E-9 first 20 min. after sync.:
±
1E-8 accuracy of oscillator: holdover, 1 day:
±
1E-7 holdover, 1 year:
±
1E-6 short term stability:
≤
10 sec, synchronized:
±
2E-9
≤
10 sec, holdover:
±
5E-9 temperature dependant drift: holdover: ± 1E-6
Frequency Synthesizer
Output frequency:
Accuracy:
1/8 Hz to 10 kHz:
10 kHz to 10 MHz:
Synthesizer Outputs: fixed - 2.048MHz
like system accuracy
Phase synchronous to pulse per second deviation of frequency < 0.0047 Hz
TTL into 50 Ω sine wave 1.5 Vrms output impedance 200 Ω
Pulse Outputs
Pulse per second (PPS):
Pulse per minute (PPM):
TTL- and RS-232 level positive pulse, pulse duration 200 msec
TTL level positive pulse, pulse duration 200 msec
Pin Assignment of the DSUB9 Connectors (male):
Pin 2: RxD
Pin 3: TxD
Pin 5: GND
Synchronization with PPS + String*:
Pin 1: PPS
Pin 2: String
*
*
The following timestrings (time telegrams) can be used:
NMEA RMC
NMEA ZDA
Meinberg Standard
Uni Erlangen
COM
56 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.10 LAN-CPU
As the central management and control element, the CPU module in an LANTIME system is responsible for management, configuration and alarm notifications. It additionally provides NTP and SNTP services on its network interface.
Technical specifications IMS LAN CPU C05F1
Processor:
AMD Geode
TM
LX 800 Processor,
400 MT/s memory bus speed
Main Memory:
Cache Memory:
256 MByte onboard DDR memory
128 kByte L2 Cache
Flashdisk:
Network Connector:
1 GB
IEEE 802.3u 100Base-Tx via RJ45 jack,
Fast Ethernet compatible
Power Consumption:
Typ. application 6,9 W @ 5V
——————————————————————————————-
Technical Specifications - IMS CPU-C15G2 (LTOS V7 only)
Processor:
Intel
R
Atom
TM
Processor E Series
(2 Cores, 1.33GHz, TDP 3W)
Main Memory:
Cache Memory:
Flash Disk:
Network Connectors:
onboard 2MB
1MB 2nd Level Cache
4 GB
1 x 10/100/1000 Base-T with RJ45-Jack
1 x 1000Base-T with SFP-Jack
Power Consumption:
Typ. application 6,9 W @ 5V
——————————————————————————————-
Interfaces - IMS LAN-CPU
Serial Interface:
USB Port:
RJ45 connector console: 38400 / 8N1, connection via CAB-CONSOLE cable install firmware upgrades backup and restore configuration files copy security keys lock / unlock front keys
Operating System:
GNU/Linux 4.x
CPU C05F1
R T N A
CPU C15G2
R T N A
CONSOLE
38400 / 8N1
0
IMS - LANTIME M500 Date: 19th March 2020 57
Status LEDs:
—————————————————————————–
LAN 0
LED - Connect, Activity and Speed of the network connection
R
(Receiver) green: red: the reference clock (e.g. build-in GNSS) provides a valid time the reference clock does not provide a valid time
T
(Time Service) green: NTP is synchronized to the red: reference clock, e.g. GNSS
NTP is not synchronized or switched to the "local clock"
N
(Network) green: red: all monitored network interfaces are connected ("Link up") at least one of the monitored network interfaces is faulty
A
(Alarm) off: red: no error general error
—————————————————————————–
Supported Protocols:
Network Time Protocol (NTP):
OSI Layer 2 (Data Link Layer):
OSI Layer 3 (Network Layer):
NTP v2 (RFC 1119), NTP v3 (RFC 1305), NTP v4 (RFC 5905)
SNTP v3 (RFC 1769), SNTP v4 (RFC 4330)
PRP (IEC 62439-3)
IPv4, IPv6
OSI Layer 4 (Transport Layer): TCP, UDP, TIME (RFC 868),
DAYTIME (RFC 867), SYSLOG
OSI Layer 7 (Application Layer): HTTP / HTTPS (RC 2616), DHCP,
FTP, NTPv3 / NTPv4, SNTP,
RADIUS, TACACS, FTP,
SSH (incl. SFTP, SCP) - SSH v1.3 /
SSH v1.5 / SSH v2 (OpenSSH),
SNMPv1 (RFC 1157) /
SNMPv2c (RFC 1901-1908) /
SNMP v3 (RFC 3411-3418),
Telnet (RFC 854-RFC 861)
58 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.11 Reference Input Modules (MRI, ESI)
12.6.11.1 MRI - Standard Reference Input Signals
If an application requires to use external synchronization sources instead of radio/GNSS signals, an MRI card enables the installed clock module to synchronize to 1PPS, 10 MHz, DCLS and AM time codes (IRIG B,
AFNOR, IEEE1344 or C37.118).
Each MRI card is dedicated to one clock module, if a redundant solution requires external synchronization inputs for both clock modules, two MRI cards have to be installed. The MRI card is available with 4x BNC connectors.
Reference Inputs: Time Code unmodulated input
(DCLS)
BNC connector, isolated by opto-coupler
Insulation voltage: 3750 Vrms
Internal series resistor: 330 Ohm
Max. input current: 25 mA
Diode forward voltage: 1.0 V - 1.3 V selectable Time Code Inputs, modulated / unmodulated (DCLS):
B122/123 / B002/003 / B126/127 / B006/007
IEEE1344 (modulated and DCLS)
AFNOR NFS 87-500 (modulated and DCLS)
Time Code modulated input
(AM),
BNC connector, isolated by transformer
Insulation voltage: 3000 V DC
Input impedance: 50 Ohm, 600 Ohm, 5 kOhm
Internally selectable by jumper
Input signal:
(default 600 Ohm)
600 mV to 8 V (Mark, peak-to-peak)
10 MHz input
, sine (1.5 V pp
- 5 V or TTL, female BNC connector pp
)
PPS input
, TTL, pulse duration
≥
5 µ s, active high, female BNC connector
Figure right:
MRI - standard input signals via BNC female connectors
IMS - LANTIME M500 Date: 19th March 2020 59
Status Indicators
LED St:
LED In:
LED A:
LED B:
Initialisation:
MRI status
Status of the backplane’s reference signals
Status of the input signals (TC-AM/DCLS) at the board
Status of the input signals (10 MHz/PPS) at the board
LED St: blue until USB is configured
LED In - LED B: off until USB is configured
USB is configured:
Normal Operation:
LED St: blue
LED In - LED B:
0,5 sec. red -> 0,5 sec. yellow -> 0,5 sec. green -> 0,5 sec. off
LED St + LED In: green
LED A: green, if timecode AM or timecode DCLS or both signals are available at the same time
LED B: green, if 10 MHz or PPS or both signals are available at the same time
Power Requirements: 5 V +-5%, 50 mA
60 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.11.2 MRI Configuration via the Web Interface
The MRI module is a card for fixed (none configurable) input signals (Time Code AM / DCLS, 10 MHz and
PPS). The provided input signals can be monitored and selected in the "Clock" menu after initializing.
Menu MRS State: Displays the available input signals
MRS settings: selection and prioritization of existing input sources
IMS - LANTIME M500 Date: 19th March 2020 61
12.6.11.3 ESI - Telecom Synchronisation References
Enhanced Synchronisation Inputs
Reference Inputs:
PPS and variable frequencies unframed, 1 kHz - 20 MHz
2,048 Mbit/s / 1,544 Mbit/s - E1/T1 framed
Input 1
Input 2
Input 3
Input 4
1PPS (BNC female connector)
TTL, pulse duration
≥
5 µ s, active high
1 kHz - 20 MHz (BNC female connector) sine (400 mV pp
- 5 V pp
) or TTL
1 kHz - 20 MHz (RJ-45)
400 mV pp
- 5 V pp into 120 Ω , TTL
E1 or T1 framed G.703 (RJ-45) max. attenuation -12 dB (referred to the signal level) into 120 Ω
Power Requirements:
5 V, +-5%, 250 mA
Status Indicators
LED St:
LED In:
LED A
LED B:
ESI status
Status of the backplane’s reference signals
Status of the input signals (1 & 2) at the board
Status of the input signals (1 & 2) at the board
Operation conditions:
Initialisation: expiration LEDs:
Normal Operation:
LED St
LED In
LED A
LED B
blue until configuration is done off until configuration is done off until configuration is done off until configuration is done
ALL LEDs
0,5 sec. red
→
0,5 sec. yellow
→
0,5 sec. green
→
0,5 sec. off
LED St
LED In
LED A
green green
LED B
green, if PPS and Frequency flashing green, if only Frequency flashing yellow, if only PPS off, if no signal green, if Clock and Framed available flashing green, if only Clock available flashing yellow, if only Framed available off, if no signal
ESI
62 Date: 19th March 2020 IMS - LANTIME M500
Pin assignment of the RJ-45 jacks (input 3 + 4)
12 Attachment: Technical Information
IMS - LANTIME M500 Date: 19th March 2020 63
12.6.11.4 ESI Configuration via Web Interface
ESI – External Synchronization Input
Menu "IO Config -> Input Configuration -> ESI - External Synchronization Interface"
The ESI (External Synchronization Input) card is capable of adding additional synchronization sources to an
IMS system. It accepts E1 and T1 sources as a Bitstream (2.048 MBit/s/1.544 Mbit/s, supporting SSM/BOC).
It also handles configurable frequencies (1 kHz - 20 MHz) and 1PPS pulse synchronization source, if required. An ESI card is, as the MRI card, dedicated to one specific clock module (depending on the slot it is installed in) and can be installed in both ESI as well as MRI slots.
Configurable Inputs
Input 1:
The input 1 is dedicated to 1PPS (Pulse Per Second) synchronization.
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12 Attachment: Technical Information
Input 2:
accepts as input signal configurable frequencies from 1 kHz to 20 MHz.
Type:
Freq. In
Frequency
Fill in a configurable frequency, 10 MHz is set as default value.
Maximum Slip n Cycles
A discontinuity of an integer number of cycles in the measured carrier phase resulting from a temporary loss of input signal. The maximum slip number can be selected in range between 0.5 – 3 cycles, with 1.5 as a default value.
Input 3:
accepts as input signal configurable frequencies from 1 kHz to 20 MHz. 2048 kHz is set as default value.
IMS - LANTIME M500 Date: 19th March 2020 65
Input 4:
As fixed frequency you can choose between E1 framed or T1 framed
Minimum Quality Levels:
Synchronization Status Message (SSM) in accordance with ITU G.704-1998 standard includes 4 bit long SSM quality messages received via incoming E1 framed signal. The clock source quality levels according to G.704-
1998 are as follows:
QL-STU/UKN
QL-PRS
QL-PRC
QL-INV3
QL-SSU-A/TNC
QL-INV5
QL-INV5
QL-ST2
QL-SSU-B
QL-INV9
QL-EEC2/ST3
QL-EEC1/SEC
QL-SMC
QL-ST3E
QL-PROV
QL-DNU/DUS
Quality unknown, existing synchronization network
Primary Reference Source
Primary Reference Clock - Rec. G.811
reserved reserved reserved reserved
Synchronous Equipment Timing Source (SETS)
Do not use for synchronization
Example:
User configured QL-SSU-B as Minimum Quality Level for his system. E1 input signal coming from PRC (G.811) or TNC will be allowed for synchronization, whereas signal coming from Synchronous Equipment Timing Source
(SETS) will not be accepted.
Sa Bits
With Sa Bits you can select one of the Sa4 to Sa8 bits which is allocated for SSM quality messages.
66 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.12 CPE and BPE Output Modules (Frontend - Backend, Eurocard)
Configurable Port Expander / Backplane Port Expander
The standard output signals like pulses (1PPS, 1PPM and freely programmable pulses) and frequencies (10MHz,
2.048MHz, frequency synthesizer 1kHz-10MHz) are provided by two versatile I/O cards named BPE and CPE.
Both of these two modules have been designed to cover a wide range of interface and signal/protocol requirements. They feature a two-tier architecture with a back-end and front-end.
The back-end is responsible for internally routing the backplane IMS synchronization signals (in case of the
BPE) or for autonomously generating a wide range of different signals by using a microprocessor (on a CPE).
The front-end makes a selection of the signals available on physical connectors.
BPE - Backend
CPE - Backend
IMS - LANTIME M500 Date: 19th March 2020 67
12.6.12.1 BPE - Backplane Port Expander
Please Note:
In principle, it should be noted that the signals that are provided via a BPE at the various connectors are always generated by the upstream clock and spread via the backplane of the system. In opposite to the CPE, the signals are not generated by the module and therefore the outputs can only be set via the receiver.
The selection and settings of the signals such as frequency, time code or programmable pulse outputs can be done via the web interface menu "Clock" or "Clock Switch Card "(for redundant systems).
Output Signals:
fixed:
10 MHz, PPS, IRIG DCLS, IRIG AM, 2.048 MHz,
PPOs (selectable via receiver)
Power Requirements:
5 V +-5%, 150 mA / BNC
5 V +-5%, 150 mA / FO
Status Indicators
LED St:
LED In:
LED A:
LED B:
Note:
Initialisation:
BPE status
Status of the backplane’s output signals
BPE status - output signals (1 + 2)
BPE status - output signals (3 + 4)
When pulse trains >= 1.6 s are configured, the LED assigned to the output remains "red" as these pulse trains are not monitored
(e.g. PPM, PPH ...).
LED St: blue until USB is configured
LED In - LED B: off until USB is configured
USB is configured: LED St: blue
LED In - LED B:
0,5 sec. red -> 0,5 sec. yellow ->
0,5 sec. green -> 0,5 sec. off
Normal Operation: LED St. + LED In: green
LED A: green, if the desired signal is present on output 1 and output 2
LED B: green, if the desired signal is present on output 3 and output 4
Figure right: BPE Outputs
BPE-2000 Standard outputs - BNC female:
PPS, 10 MHz, TC DCLS and TC AM
BPE 5000 Fiber Optic ST-Connectors
PPS, 10 MHz, TC DCLS und 2048kHz
68 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.12.2 Available BPE Modules
BPE Type Connectors
BPE-1040
BPE-1060
1
BPE-2000
4 x BNC female
4 x BNC female
4 x BNC female
BPE-2001
BPE-2010
BPE-2014
BPE-2016
2
4 x BNC female
4 x BNC female
4 x BNC female
BPE-2020
BPE-2030
BPE-2050
BPE-2080
BPE-2090
BPE-2091
3
4 x BNC Buchse
4 x BNC female
4 x BNC female
4 x BNC female
4 x BNC female
4 x BNC female
4 x BNC female
Signals
Out 1 - Out 4: TC AM
Out 1 - Out 4: DCF77 SIM
Out 1: PPS, Out 2: 10 MHz
Out 3: TC DCLS, Out 4: TC AM
Out 1: PPS, Out 2: 10 MHz
Out 3: TC DCLS, Out 4: TC DCLS
Out 1 - Out 4: PPS
Out 1 - Out 2: PPS
Out 3 - Out 4: 10 MHz
Out 1 - Out 4: progr. Pulses_1
10 V
PP an 50 Ω
Out 1 - Out 4: 10 MHz
Out 1 - Out 4: TC DCLS
Out 1 - Out 3: TC DCLS
Out 4: TC AM
Out 1 - Out 4: 2048 kHz
Out 1 - Out 4: progr. Pulses
Out 1 - Out 4: progr. Pulses_1
4TE
4HP
4HP
4HP
4HP
4HP
4HP
4HP
4HP
4HP
Size
4HP
4HP
4HP
(1)
When using the BPE-1060 module, important configuration parameters must be observed. In the web interface, you must set the mode to DCF77 Marks in the "Clock → Programmable Pulse Outputs → Prog. Out 1" menu. In the drop-down box "Signal" the setting Normal is to be selected. In the menu "Clock
→
Time Zone
→
Time Zone for external Outputs" the
Local Time Zone
must be selected.
If the corresponding time zone does not exist in this drop-down box, the time zone can be added manually in the menu "System
→
Display
→
Edit Time Zone Table".
See
(2)
The outputs can be set by jumpers. Possible options are: PPS, Time Code DCLS, PPO_0, PPO_1, PPO_2 and PPO_3. Default jumper setting of this card is 4 x PPO_0 (Progr. Output 1 in the web interface).
(3)
All four outputs of this BPE module have to be configured via the upstream receiver. In the web interface, the configuration of the output signals can be carried out via the menu "Clock → Programmable Pulse →
Prog. Out 1". Here the option "PTTI 1PPS" must be selected to get a pulse length of 20 µ s.
IMS - LANTIME M500 Date: 19th March 2020 69
BPE Type
BPE-2110
BPE-2120
BPE-2180
BPE-2500
BPE-2600
BPE-2700
Connectors
8 x BNC female
8 x BNC female
8 x BNC female
4 x 2pin DFK
PhotoMOS
1 x BNC female
4 x 2pin DFK
4 x 2pin DFK
Opto Coupler
1 x BNC female
Signals
Out 1 - Out 8: PPS
Out 1 - Out 8: 10 MHz
Out 1 - Out 8: 2048 kHz
Out 1 - Out 4: Progr. Pulse
Out 5 - TC AM
Out 1: PPS, Out 2: 10 MHz
Out 3: TC DCLS, Out 4: TC AM
Out 1 - Out 4: Progr. Pulses
Out 5 - TC AM
Size
8HP
8HP
8HP
4HP
4HP
4HP
BPE modules with serial ports (D-SUB9 jacks)
BPE Type Connectors Signals
BPE-3014
2 x D-SUB9 female
BPE-3050
BPE-3412
BPE-3422
4
2 x D-SUB9 female
1 x D-SUB9 female
2 x BNC female
4 x D-SUB9 female
Out 1, Out 2: TC DCLS
RS-422 Level
Out 1, Out 2: Progr. Pulse
RS-422 Level
Out 1: Progr. Pulses, RS-422
Out 2, Out 3: TC AM
BPE-3424
BPE-3082
4 x D-SUB9 female
4 x D-SUB9 female
Out 1 - Out 4: 1MHz
RS-422 Pegel
Out 1 - Out 4: TC DCLS
RS-422 Pegel
Out 1 - Out 4: 2048 kHz sine
Size
4HP
4HP
4HP
8HP
8HP
8HP
(4)
The outputs COM A and COM B are configured via the upstream receiver in the web interface (Menu "Clock
→ Programable Pulses → Prog. Out 1"). The programable pulses PP_0 of the clock are connected to both outputs of the BPE-3050 via the backplane.
70 Date: 19th March 2020 IMS - LANTIME M500
BPE Type
BPE-4043
BPE-6042
Connectors
4 x RJ45
2 x DMC 16-pin
Fiber-Optical Outputs
BPE-5000
4 x FST
BPE-5010
BPE-5014
BPE-5020
BPE-5030
BPE-5032
BPE-5080
BPE-5082
BPE-5090
4 x FST
4 x FST
4 x FST
4 x FST
4 x FST
4 x FST
4 x FST
4 x FST
12 Attachment: Technical Information
Signals
RS422, Pin_3 T-, Pin_6 T+
10 x PPO - RS-422 galvanic isolated
Size
4HP
4HP
PPS, 10 MHz, TC-DCLS, 2048 kHz
FO Multimode
4HP
PPS / FO Multimode 4HP
2 x PPS + 2 x 10 MHz / FO Multimode 4HP
10 MHz / FO Multimode
TC DCLS / FO Multimode
TC DCLS / FO Singlemode
2048 kHz / FO Multimode
PPS, 10 MHz, 2 x 2048 kHz
FO Multimode
PPO / FO Multimode 4HP
4HP
4HP
4HP
4HP
4HP
IMS - LANTIME M500 Date: 19th March 2020 71
12.6.12.3 Configuring an BPE expansion card via the Web Interface
A simple BPE expansion card usually gets its signals directly from the internal backplane of the system. The output signals of the card are pre-configured according to customer requirements.
If an output signal has to be changed, this must be done via the pre-connected receiver - in the menu "Clock
→
Switch Card" if you have a redundant system or in the menu "Clock
→
Receiver" in systems with only a single receiver. The BPE modules have no direct configuration options. This information is also displayed in the "IO
Config" menu.
Figure: menu "Clock
→
Switch Card
→
IRIG Settings"
Figure: menu "Clock
→
Programmable Pulses
→
Selection of Idle mode"
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12 Attachment: Technical Information
12.6.12.4 BPE-8000 - Switchable Backplane Port Expander
Output Signals:
adjustable via the web interface (TTL or Fiber Optical):
PPS, 10 MHz, 2048 kHz, TC-DCLS, Progr. Pulses or fixed:
2048 kHz (ITU G.703-15), TC-AM
Power Requirements:
5 V +-5%, 150 mA / BNC
5 V +-5%, 150 mA / FO
Status Indicators
LED St:
LED In:
LED A:
LED B:
Initialisation:
USB is configured:
Normal Operation:
BPE status
Status of the backplane’s output signals
BPE status - output signals (1 + 2)
BPE status - output signals (3 + 4)
LED St: blue until USB is configured
LED In - LED B: off until USB is configured
LED St: blue
LED In - LED B:
0,5 sec. red -> 0,5 sec. yellow ->
0,5 sec. green -> 0,5 sec. off
LED St. + LED In: green
LED A: green, if the desired signal is present on output 1 and output 2
LED B: green, if the desired signal is present on output 3 and output 4
IMS - LANTIME M500 Date: 19th March 2020 73
Available BPE-8000 Models
BPE 8000 BPE 8100 BPE 8200 BPE 8300 BPE 8400 BPE 8500 BPE 8600 BPE 8700
4 x TTL via BNC
4 x FO MMF via ST
2 x FO MMF via ST
2 x TTL via BNC
4 x FO SMF via ST
2 x FO SMF via ST
2 x TTL via BNC
2 x FO MMF via ST
2 x FO SMF via ST
4 x 2.048MHz
(ITU G.703-15
75 Ohm) via BNC
3 x TTL via BNC
1 x TC-AM via BNC
BPE Module Connectors Signal Outputs
————————————————————————————————–
BPE-8000
BPE-8100
4x BNC female
4x ST
TTL
Fiber Optic - Multimode
BPE-8200
BPE-8300
BPE-8400
BPE-8500
BPE-8600
BPE-8700
2x ST, 2x BNC female
4x ST
2x ST, 2x BNC female
4x ST
4x BNC female
4x BNC female
2x Fiber Optic - Multimode, 2x TTL
Fiber Optic - Singlemode
2x Fiber Optic - Singlemode, 2x TTL
2x Fiber Optic - Multimode, 2x Fiber Optic - Singlemode
2048 kHz (ITU G.703-15 - 75 Ω unbalanced) *
3x TTL, 1x Modulated Time Code - TC-AM **
*
**
Fixed outputs, no signal selection possible.
BNC sockets Out 1 - Out 3 are freely programmable, Out 4 is permanently set to TC AM.
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12 Attachment: Technical Information
12.6.12.5 Configuring an BPE-8000 expansion card via the Web Interface
Via the web interface or the Meinberg Device Manager (MDU), the following signals can be distributed to the BNC connectors (TTL) or fiber optical connectors (ST) according to your choice: PPS, 10MHz, Time Code
DCLS, 2048 kHz and programmable pulse outputs PP 1 - PP 4 of the upstream reference source. With the programmable pulse outputs, each output channel of the pulse generator (IMS receiver) can now also be switched through to all available connectors of the BPE (for example PP 1 to Out 1 - Out 4 of the BPE).
Figure: Web interface menu "IO Config
→
Output Configuration"
IMS - LANTIME M500 Date: 19th March 2020 75
12.6.12.6 BPE-1060 4 x SIM77
Backplane Port Expander (Frontend / Backend)
Output Signals:
fixed: Out 1 - Out 4: SIM77 (DCF77 compatible Signal) via isolated female BNC connectors (-60dBm)
Power Requirements:
5 V +-5%, 150 mA / BNC
5 V +-5%, 150 mA / FO
Status Indicators
LED St:
LED In:
LED A:
LED B:
BPE status
Status of the backplane’s output signals
BPE status - output signals (1 + 2)
BPE status - output signals (3 + 4)
Initialisation: LED St: blue until USB is configured
LED In - LED B: off until USB is configured
USB is configured: LED St: blue
LED In - LED B:
0,5 sec. red -> 0,5 sec. yellow ->
0,5 sec. green -> 0,5 sec. off
Normal Operation: LED St. + LED In: green
LED A: green, if the desired signal is present on output 1 and output 2
LED B: green, if the desired signal is present on output 3 and output 4
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12 Attachment: Technical Information
SIM77 - amplitude-modulated time signal
The amplitude-modulated time signal is compatible with the DCF77 signal, transmitted by the German longwave transmitter. The SIM77 signal is provided via four DC insulated BNC sockets.
Note:
Important configuration parameters must be observed when using the BPE-1060 module in an IMS system. In the Web Interface, in the menu "Clock → Programmable pulse outputs → Prog. Out 1", the mode must be set to
DCF77 Marks
. In the "Signal" drop-down box, select
Normal
(see figure right).
The local time zone must be selected in the menu "Clock → Time Zone → Time Zone for External Outputs".
If the corresponding time zone is not available in this drop-down box, the time zone can be added manually in the menu "System
→
Display
→
Edit time zone table".
IMS - LANTIME M500 Date: 19th March 2020 77
In the example below, several time zones are entered with the changeover rule for summer and winter time.
Please note, that these settings will also affect other output modules which provide the programmable pulse output "Prog. Out 1".
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12 Attachment: Technical Information
12.6.12.7 CPE - Configurable Port Expander (Frontend)
CPE (Configurable Port Expander)
The CPE is a configurable IO card that can autonomously generate additional output signals from the integrated system clock. This module consists of a half-size standard controller card (back-end) and a dockable port expander card (front-end), like this a wide variety of available programmable output signals and physical connections are possible, including various electrical and optical interfaces.
This enables the CPE, in combination with the front end COI TS2 (CPE 3000 ...), to support up to 4 more configurable interfaces that can optionally be led out as RS-232, RS-422 or RS-485 signal type. Furthermore, up to 8 programmable outputs (PPO) can be generated and configured in the web interface. The settings of the desired output configuration are selected in the IO Config -> Output Configuration.
It should be noted that the desired signals can be realized only with the corresponding front card.
Output Signals:
Capture-Input:
Power Supply:
Environmental:
Status Indicators
LED St:
LED In:
LED A:
LED B:
LED Indicators
LED St:
LED In:
LED A:
LED B: configurable:
10 MHz, PPS, IRIG DCLS, IRIG AM, PPO active high or active low, permitted input level +5 V (DC)
+5 V (DC), 150-300 mA, depending on the selected frontend
Temperature 0-50
◦
C
Humidity max. 85 %, non condensing
CPE status
Status of the backplane’s output signals currently not used currently not used blue green red yellow green flash green during initialisation normal operating mode no signal signal available / not sync time sync but not accurate time sync and accurate green green currently not used currently not used
Figure: CPE Frontends
CPE-1000: 4 config. outputs via BNC female
CPE-5000: 4 config. outputs / FO - ST connectors
CPE-2500: 4 x prog. Pulses (DFK-2) / 1 x TC AM (BNC)
IMS - LANTIME M500 Date: 19th March 2020 79
12.6.12.8 Available CPE Modules
BPE Type Connectors
CPE-1000
CPE-1002
4 x BNC female
1 x D-SUB9
2 x BNC female
CPE-1040
CPE-1050
CPE-2500
CPE-3000
4 x BNC female
4 x BNC female
4 x DFK 2-pin PhotoMos
1 x BNC female
2 x D-SUB9
CPE-3010
CPE-3020
CPE-3030
CPE-3040
CPE-3050
CPE-3060
CPE-4020
CPE-5000
2 x D-SUB9
2 x D-SUB9
2 x D-SUB9
2 x D-SUB9
2 x D-SUB9
2 x D-SUB9
2 x RJ45
4 x FST female
Signals
prog. pulses
Time Telegram, RS232
Capture Inputs
TC AM / BNC
3 x progr. pulses, 1 x TC AM progr. Pulse
TC AM serial timestring
RS-232 + PPS serial timestring
RS-422 serial timestring
RS-422 + PPS serial timestring
RS-485 serial timestring
RS-485 + PPS serial timestring
RS-422 serial timestring
RS-422 + PPS serial timestring
RS-422 + PPS prog. pulses / fiber optical
4HP
4HP
4HP
4HP
4HP
4HP
4HP
Size
4HP
4HP
4HP
4HP
4HP
4HP
4HP
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12 Attachment: Technical Information
12.6.12.9 CPE-3000: Programmable Outputs via serial Interface
The CPE-3000 module has two serial ports (COM A and B) for various output signals. The two interfaces can also be used for communication with other devices.
The possible pin assignments and module types are listed below:
CPE 3000
9
5
6
1
9
5
6
1
7
8
5
6
9
PIN
1
CPE-3000 CPE-3010 CPE-3020 CPE-3030 CPE-3040 CPE-3050
COM A, COM B COM A, COM B COM A, COM B COM A, COM B COM A, COM B COM A, COM B
Time String
(RS-232)
+PPO
PPO
Time String
(RS-422)
RxD +
Time String
(RS-422)
+ PPO
(RS-422)
RxD +
Time String
(RS-485)
-
Time String
(RS-485)
+ PPO
(RS-422)
-
PPO
(RS-422)
-
2
3
4
TxD
RxD
-
RxD -
-
-
RxD -
TxD +
TxD -
-
-
-
-
TxD + / RxD +
TxD - / RxD -
-
-
-
GND
-
-
-
-
GND
-
TxD +
TxD -
-
GND
-
PPO +
PPO -
-
GND
-
TxD + / RxD+
TxD - / RxD -
-
GND
-
PPO +
PPO -
-
GND
-
PPO +
PPO -
-
CPE-3060
COM A
Time String
(RS-232)
+ PPO
(TTL)
PPO
COM B
Time String
(RS-422)
+ PPO
(RS-422)
RxD +
TxD
RxD
-
RxD -
TxD +
TxD -
GND
-
-
-
-
GND
-
PPO +
PPo -
-
IMS - LANTIME M500 Date: 19th March 2020 81
12.6.12.10 CPE-4020: Programmable Outputs via serial Interface
The module CPE-4020 has two interfaces with RJ45-connector (COM A and B). These provide Time String +
PPS with RS422 level. The following configurations must be performed to correctly output the signals.
Baud Rate
Framing
String Type
Mode
19200
8N1
Meinberg GPS per second (PPS)
Pin assignment
Pin 3:
Pin 5:
Pin 6:
Pin 7:
Pin 8:
TXD_P, serial interf. transmit pos.
GND (Ground)
TXD_N, serial interf. transmit neg.
SYNC_P, PPS transmit, pos.
SYNC_N, PPS transmit, neg.
Current Consumption:
5 V +-5%, 150 mA
Connection type:
Cable:
8P8C (RJ45)
Copper twisted pair, e.g. CAT 5.0
CPE 4020
Pin 3
TxD (+)
Pin 6
TxD (-)
Pin 7
PPS (+)
Pin 8
PPS (-)
1
RS-422
8
Gain TxD 1 / PPS
82 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.12.11 CPE-4020 Configuration via Web Interface
If the CPE-4020 operates in an IMS system, the output configuration can easily be done via the web interface then.
With the "Common" tab the time zone with the corresponding offset can be selected.
Configuration: CPE-4020
In the "IO Config" menu you can select the following values for the output connectors:
Common:
Time zone with the corresponding UTC offset value
Synthesizer:
Frequency Synthesizer range 1 Hz - 10 MHz
IRIG Code:
Serial:
Prog. Out:
Generated IRIG output codes (B002+B122 ...)
Serial connection parameters
Programmable outputs Prog. Out 1 and Prog. Out 2
Figure: Serial connection parameter settings
The following programmable pulse outputs can be selected:
Idle
Timer
Single Shot
Cyclic Pulse
Pulse Per Second
Pulse Per Minute
Pulse Per Hour
DCF77 Marks
Position OK
Time Sync
All Sync
DCLS Time Code
Synthesizer Frequency
(not in use)
(3 switching-times On - Off)
(pulse length and start time)
(pulse length and cycle time)
(pulse length)
(pulse length)
(pulse length)
(timeout)
(position determined)
(clock synchronized)
(position determined and clock synchronized)
IMS - LANTIME M500 Date: 19th March 2020 83
Figure: Selection of programmable pulse outputs
84 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.12.12 CPE - Configuration via Web Interface
If the CPE operates in an IMS system, the output configuration can easily be done via the web interface then.
With the "Common" tab the time zone with the corresponding offset can be selected.
CPE Configuration
In the "IO Config" menu you can select the following values for the output connectors:
Common
Synthesizer
IRIG Code
Prog. Out
Time zone with the corresponding UTC offset value
Frequency Snthesizer range 1Hz - 10 MHz
Generated IRIG output codes (B002+B122 ...)
Programmable output Prog. Out 1 - Prog. Out 4
Figure: Menu Tab "Synthesizer" Frequency for selecting the Frequency Synthesizer option in the menu "Prog.
Out"
IMS - LANTIME M500 Date: 19th March 2020 85
Figure: Menu Tab "IRIG Out" Selection of the IRIG code (IRIG DCLS only)
Figure: Menu Tab "Prog. Out" Selection of the signal option for the programmable pulse output (PPO)
The following programmable pulse outputs can be selected:
Idle
Timer
Single Shot
Cyclic Pulse
Pulse Per Second
Pulse Per Minute
Pulse Per Hour
DCF77 Marks
Position OK
Time Sync
All Sync
DCLS Time Code
Synthesizer Frequency
(not in use)
(3 switching-times On - Off)
(pulse length and start time)
(pulse length and cycle time)
(pulse length)
(pulse length)
(pulse length)
(timeout)
(position determined)
(clock synchronized)
(position determined and clock synchronized)
86 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.13 LNE-GbE: Network Expansion with Gigabit Support and SFP Option
Link speed:
10/100/1000 Mbita
Connector Type:
8P8C (RJ45)
Cable:
CAT 5.0
Duplex Modes:
Half/Full/Autonegotiaton
LED Indicators
LED St: Init lights blue during initialisation
LED In - LED B: Shows the state of the four LAN ports after initialisation green normal operation red defective LAN port
Figure right:
LNE-GbE and LNE-GbE with SFP Option
LNE SFP
Option: LNE-SFP
Interface:
Cable:
1000BASE-T SFP
Multimode Fiber
GI 50/125 µ m or GI 62,5/125 µ m gradient fiber
Link Speed
Singlemode Fiber
E9/125 µ m monomode fiber
Electrical: 1000 Base-T
Fiber optical: 1000-FX
IMS - LANTIME M500 Date: 19th March 2020 87
Recommended and tested Transceivers from other Vendors
Mode Vendor/Type Distance
———————————————————————————————————————–
MULTI MODE: AVAGO AFBR-5710PZ
FINISAR FTLF8524P3BNL
550 m
500 m
SINGLE MODE:
RJ-45:
AVAGO AFCT-5710PZ
FINISAR FTLF1318P3BTL
SMARTOPTICS SO-SFP-L120D-C63
AVAGO ABCU-5740RZ
FINISAR FCLF8521P2BTL
10 km
10 km
80 km
100 m
100 m
LAN interface alignment with several LNE modules in operation:
Basically, the physical network ports are assigned according to the MAC address order. Thus, the uppermost interface on a LNE module has the lowest and the bottommost interface has the highest MAC address, respectively. Let´s take an example where three LNE modules are inserted in a device. Then the logical order of network interfaces assigned in a webinterface follows the MAC address order of LNE modules, disregarding the
I/O slot order by which the modules are inserted.
In a factory assembling, LNE modules are sorted in an ascending order starting from left to right (see the corresponding figure above). LAN 0 is therefore always the first network interface of the LAN-CPU.
88 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.13.1 LNE-GBE Configuration via the Web Interface
If the LNE-GBE operates in an LANTIME system, all network settings can be configured via the web interface then.
Physical Network Configuration
Net Link Mode: The network interfaces LAN1 - LAN4 (LNE-GBE) can be used in 1000 MBIT HALF / FULL duplex mode.
Indicate Link: LED indication for the selected physical interface, only if a front display with function keys is available.
to optimize the reliability and the use of a of higher bandwith.
Bonding:
PRP: As of LANTIME firmware version 7.0, PRP can also be conveniently set via the web interface menu "Network
→
Physical Network Configuration".
Select the same PRP group for at least two interfaces in the drop-down menu "Bonding".
This mode must be activated here.
IPv6 Mode:
MAC-Address: Displays the unique MAC address of the physical interface.
Assigned Virtual
Interfaces: In the Ethernet Interfaces menu (see below) virtual network interfaces can be added.
IMS - LANTIME M500 Date: 19th March 2020 89
Menu Interfaces
IPv4:
Misc:
VLAN:
Cluster:
Manually adjustment of all important parameters such as TCP / IP address, subnet mask and gateway. The DHCP client can also be activated here for automatic network configurations.
With the tab Misc the virtual interface can be assigned to a physical interface.
With VLAN, this function can be enabled and configured.
The cluster function can be activated with this submenu and additional Parameters such as multicast or unicast mode, TCP / IP address and subnet mask can be set up here.
90 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.13.2 Adding / Removing an LANTIME Network Extension LNE
An LNE module can be installed in each MRI/ESI or IO Slot of a LANTIME IMS device.
Adding a LANTIME Network Extension
After installing the LNE module, please start the web interface. In the menu "System
→
Services and Functions" press the button
NIC Manager
then . With this function you add all new physical network interfaces to the system’s network configuration. Now it is ensured that the IMS module is correctly installed and recognized by the system.
Remove a LANTIME Network Extension LNE
To remove a LNE network extension from the LANTIME system, the card must first be removed. However, the removed LNE interfaces are still listed in the network configuration. The "NIC Manager" can be used to update the network configuration in this case as well.
After successfully running the "NIC Manager", only the actually existing interfaces are displayed in the web interface. A system restart is not necessary.
IMS - LANTIME M500 Date: 19th March 2020 91
12.6.14 HPS-100: PTP / SyncE / Hardware NTP Interface
IEEE 1588 v2 compatible
Profiles: IEEE 1588v2 Default Profile
IEEE 1588v1 (option)
Enterprise Profile
IEC 61850-9-3 Power Profile
IEEE C.37.238-2011 Power Profile
IEEE C.37.238-2017 Power Profile
ITU-T G.8265.1 Telecom Frequency Profile
ITU-T G.8275.1 Telecom Phase / Time Profile (full timing support)
ITU-T G.8275.2 Telecom Phase / Time Profile (partial timing support)
SMPTE ST 2059-2 Broadcast Profile
IEEE 802.1AS TSN/AVB Profile
AES67 Media Profile
DOCSIS 3.1
PTP Modes: Multicast/Unicast Layer 2 (IEEE 802.3)
Multicast/Unicast Layer 3 (UDP IPv4/IPv6)
Hybrid Mode
E2E / P2P Delay Mechanism
Up to 128 messages/second per client
NTP Mode: NTP Server mode (8 ns time stamp accuracy)
NTPD Software Service (15,000 req./s)
1-Step, 2-Step for both Master and Slave operation 1588 Clock Mode:
Synchronous Ethernet: Master and Slave Capability
Compliant to ITU-T G.8261, G.8262 and G.8264
Ethernet Synchronization Messaging Channel (ESMC)
Network Protocols: IPv4, IPv6
DHCP, DHCPv6
DSCP
IEEE 802.1q VLAN filtering/tagging
IEEE 802.1p QOS
Ethernet Interface:
USB Interface:
Signal Outputs:
CPU:
Time Stamp Accuracy:
Combo Port: 1 x 100/1000BASE-T RJ45, 1 x GBIT SFP - Slot
A list of tested and recommended optical transceiver modules can be found in chapter
USB 1.1 / USB 2.0 full-speed, Micro USB female connector
2x SMA (50 Ohm) connectors configurable signals: 1PPS, 10MHz, 2048kHz
825 MHz Cortex A9 Dual Core on SOC
8 ns
HPS 100
92 Date: 19th March 2020 IMS - LANTIME M500
LED Indicators
LED St:
LED In:
Init red yellow green red lights blue during initialisation, off in normal operation mode
Error - TSU does not work correctly,
PTP services stopped
No link, but initialized link up stopped
LED A - LED B: Shows the current State of the TSU yellow - yellow Listening green - off off - green yellow - off off - yellow red - red
Master Mode
Slave Mode
Passiv Mode uncalibrated stopped
12 Attachment: Technical Information
Performance Level Options:
Option Unicast
Clients
Delay
Req./s
NTP
Req./s
PTPv1 PTP
Monitoring
————————————————————————————————————————————-
PL-A
8 1024 1600 NO NO
PL-B
PL-C
PL-D
PL-E
256
512
1024
2048
32768
65536
131072
262144
51200
102400
204800
409600
NO
YES
YES
YES
NO
NO
YES
YES
IMS - LANTIME M500 Date: 19th March 2020 93
A detailed configuration guide you will find in the corresponding firmware manual of the system. See chapter
"The Web Interface -> Configuration: PTP V2".
Figure: Webinterface - PTP Menu
→
Global Configuration
94 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.15 TSU V3: IEEE-1588 Time Stamp Unit
TSU v3 (IEEE 1588 v2 compatible)
Profiles:
PTP Modes:
IEEE 1588v2 Default Profile
IEEE C.37.238 Power Profile
ITU-T G.8265.1 Telecom Frequency Profile
ITU-T G.8275.1 Telecom Phase/Time Profile
SMPTE ST 2059-2 Broadcast Profile
Multicast Layer 2 (IEEE 802.3)
Multicast/Unicast Layer 3 (UDP IPv4/IPv6)
E2E / P2P Delay Mechanism
Bis 128 messages/second per client
NTP Mode:
1588 Clock Mode:
NTP Server mode (10 ns time stamp accuracy)
1-Step, 2-Step for both Master and Slave operation
Synchronous Ethernet: Master and Slave Capability
Compliant to ITU-T G.8261, G.8262 and G.8264
Ethernet Synchronization Messaging Channel (ESMC)
Network Protocols: IPv4, IPv6
DHCP, DHCPv6
DSCP
IEEE 802.1q VLAN filtering/tagging
Ethernet Interface:
Signal Outputs:
Combo Port:
1 x 100/1000BASE-T RJ45
1 x GBIT SFP - Slot
2x BNC (50 Ohm) connectors configurable signals: 1PPS, 10MHz, 2048kHz
CPU:
Time Stamp Accuracy:
1 GHz Dual Core ARM
10 ns
IMS - LANTIME M500 Date: 19th March 2020 95
LED Indicators
LED St:
LED In:
Init red yellow green red lights blue during initialisation, off in normal operation mode
Error - TSU does not work correctly,
PTP services stopped
No link, but initialized link up stopped
LED A - LED B: Shows the current State of the TSU yellow - yellow Listening green - off Master Mode off - green yellow - off off - yellow red - red
Slave Mode
Passiv Mode uncalibrated stopped
96 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.16 IMS PIO: PPS or 10 MHz I/O Module
Technical Specifications:
Connectors: 4 x BNC female, isolated, individually switchable as input or output
PPS or 10 MHz Signal Options:
Status Indicators
LED St:
LED In:
LED P:
LED C:
Initialisation:
PIO status
Status of the backplane’s output signals display for preset PPS display for preset 10 MHz
LED St: blue until USB is configured
LED In - LED B: off until USB is configured
USB is configured:
Normal Operation:
LED St: blue
LED In:
0,5 sec. red -> 0,5 sec. yellow ->
0,5 sec. green -> 0,5 sec. off
LED St. + LED In: green
LED P: green, if card is preset to PPS
LED C: green, if card is preset to 10 MHz
PIO
St In P C
180
IMS - LANTIME M500 Date: 19th March 2020 97
12.6.16.1 PIO - Configuration via the Web Interface
The PIO module is pre-configured by a jumper. The default configuration of all ports is PPS (Pulse Per
Second). If this pre-configuration needs to be changed to 10 MHz, the card must be removed and the jumper position adjusted.
Via the web interface, each port can be set separately to "Input" or "Output". If a port is set to "Output", the system PPS or the 10 MHz reference frequency is output signal at this port. If a port is set to "Input" the incoming signal is compared to the system PPS or to the 10 MHz reference frequency. The offset values are displayed in the status window.
98 Date: 19th March 2020 IMS - LANTIME M500
12.6.17 LIU - Line Interface Unit
Input signal:
Clock:
2.048 MHz reference clock, TTL level
T1 - 1.544 MHz
E1 - 2.048 MHz
BITS:
Outputs:
T1 - 1.544 MBit/s
E1 - 2.048 MBit/s balanced - RJ45 jack - 120
Ω
(Clock) unbalanced - BNC connector 75
Ω
(Bits)
Short term stability and Accuracy: depends on oscillator of the reference clock
OCXO-SQ: +-5
·
10
-10
OCXO-MQ: +-2
·
10
-10
OCXO-HQ: +-5
·
10
-12
OCXO-DHQ: +-2
·
10
-12
Rubidium: +-2
·
10
-11
LED Indicators
Power T1 E1
Power:
T1:
E1:
Init green red: yellow: green red: yellow: blue during initialisation, green in normal operation mode selected mode T1 output disabled signal quality unknown selected mode E1 output disabled signal quality unknown
12 Attachment: Technical Information
LIU A4004
Power T1 E1
IMS - LANTIME M500 Date: 19th March 2020 99
12.6.17.1 IMS-LIU Telecom Output Signals
The board LIU (Line Interface Unit) was designed to convert the GNSS-locked standard frequency of a preconnected Meinberg satellite controlled clock (GPS or GPS/GLONASS/Galileo/BeiDou) into several timing signals that can be used for various synchronization or measurement tasks.
Typical applications are:
•
Measurement and test of synchronization quality of Telecom networks
•
Calibration and synchronization of laboratory equipment
•
Test of synchronization of radio transmitters / base stations (GSM / CDMA / UMTS / DAB / DVB)
Pinbelegung /
Pin assignment
:
1:
TRING ,
2:
TTIP (LIU-A)
5:
TRING ,
4:
TTIP (LIU-T)
8:
TRING ,
7:
TTIP (LIU-E)
3.
T1
4.
E1
(green/red = on/off)
(green/red = on/off) unsymm. /
unbalanced
1
2
4 5
7 8
symm. /
balanced
There are two separate signal paths on the board LIU. One is for providing the standard frequencies, the second path is for generation of the "telecom-signals". All output signals have high accuracy and stability because they are derived from the internal receiver’s disciplined standard frequencies generated by the preconnected satellite clock. Depending on the oscillator option of the internal receiver, the accuracies which are described in chapter
can be achieved.
100 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.17.2 Block Diagram LIU
The following block diagram illustrates the functional principle of the board LIU:
4.096 MHz
LIU V3
USB/IMS interface
RS232 interface micro controller low pass filter framer & line interface isolation isolation isolation isolation isolation isolation isolation isolation amplifier amplifier amplifier amplifier framed outputs
T1.403/G703-9, balanced (or unbalanced),
1.544 Mbps or 2.048 Mbps clock outputs
G703-13, balanced
1544 kHz or 2048 kHz clock outputs
G703-13, unbalanced
1544 kHz or 2048 kHz
IMS - LANTIME M500 Date: 19th March 2020 101
12.6.17.3 Telecom Signals
These signals can be devided into two groups: the "clock" outputs and the "framed" outputs, that are provided by a framer and line interface device on the board LIU. All clock signals needed for generation of the ‘telecom outputs’ are derived from a 2048 kHz reference clock, which is generated by a frequency synthesizer on the preconnected GPS- or GLN-clock. This synthesizer is phase locked to the PPS signal and frequency locked to the master oscillator of the clock.
The module LIU is able to generate signals for the American T1- or the European E1-system. The mode of operation can be configured via the web interface of the IMS management module (LAN-CPU).
The clock outputs are standard frequencies of either 1544 kHz (T1) or 2048 kHz (E1). Four unbalanced and four balanced outputs according to ITU-T G703-13 (CCITT recommendation "Physical/electrical characteristics of hierarchical digital interfaces") are available via BNC female and RJ45 connectors.
The "framed" outputs are consisting of data signals known from digital telephony, which are distributed by using a special frame structure (EFS Framing Mode - Extended Superframe). As a synchronization unit, LIU only generates a "framed all ones" signal (data byte 0xFF hex) with a transmission speed of either 1544 kBits
(T1) or 2048 kBit/s (E1). Four outputs according to ANSI T.403 (T1-mode) or ITU-T G703-9 (E1-mode) are available either unbalanced via BNC connectors or balanced via RJ45 connectors. Two different line codes used for error correction are known for the transmission of framed signals. The board LIU generates B8ZS- (in
T1-mode) or HDB3-coded (in E1-mode) output signals by standard.
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12 Attachment: Technical Information
12.6.17.4 Pulse templates
The following pulse templates are required by ANSI (T1-mode) and CCITT (E1-mode) for output signals in telecom applications. The board LIU meets these recommendations.
T1 (T.403):
1.20
1.05
0.95
0.90
0.80
0.50
0.05
0
-0.05
-0.26
-0.45
Time in nanoseconds
E1 (G.703):
269 nsec
244 nsec
194 nsec
120
110
100
90
80
50
20
0
-10
-20
Nominal pulse
219 nsec
488 nsec
IMS - LANTIME M500 Date: 19th March 2020 103
12.6.17.5 LIU - Configuration Samples
The Line Interface Unit (LIU) is available in two different sizes and different output / connector options. All outputs of a module can be operate in either the E1 or T1 in mode. Signal output settings can be done during operation via the web interface. The selected mode is indicated by the LEDs in the retainer plate.
Signal Types
•
2048 kHz (E1 mode) or 1.544 MHz (T1 mode), G.703, 120 Ω , balanced, RJ45 socket
•
2048 kHz (E1 mode) or 1.544 MHz (T1 mode), G.703, 75 Ω , unbalanced, BNC connector
•
2048 kBit/s (E1 mode) or 1.544 MBit/s (T1 mode), 120
Ω
, balanced, RJ45 socket
•
2048 kBit/s (E1 mode) or 1.544 MBit/s (T1 mode), 75 Ω , unbalanced, BNC connector
12.6.17.6 Overview - LIU Modules for IMS Systems
LIU Model Size Signal (bal./unbal.) Connectors
———————————————————————————————————————–
LIU-A4040
8TE BITS (4/0) 4 x RJ45
Clock (4/0) 4 x RJ45
LIU-A4004
8TE
LIU-A0404
8TE
BITS (4/0)
Clock (0/4)
BITS (0/4)
Clock (0/4)
4 x RJ45
4 x BNC
4 x BNC
4 x BNC
LIU-A0044
LIU-A2222
8TE
8TE
Clock (4/0)
Clock (0/4)
BITS (2/2)
Clock (2/2)
4 x RJ45
4 x BNC
2 x RJ45, 2 x BNC
2 x RJ45, 2 x BNC
104 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
LIU Model Size Signal (bal./unbal.) Connectors
———————————————————————————————————————–
LIU-A0040
4TE Clock (4/0) 4 x RJ45
LIU-A0004
LIU-A2020
4TE
4TE
Clock (0/4)
BITS (2/0)
Clock (2/0)
4 x BNC
2 x RJ45
2 x RJ45
LIU-A2002
LIU-A0400
LIU-A1111
4TE
4TE
4TE
BITS (2/0)
Clock (0/2)
BITS (0/4)
BITS (1/1)
Clock (1/1)
2 x RJ45
2 x BNC
4 x BNC
1 x RJ45, 1 x BNC
1 x RJ45, 1 x BNC
LIU A4000
Power T1 E1
LIU A0040
Power T1 E1
LIU A0004
Power T1 E1
LIU A2020
Power T1 E1
LIU A2002
Power T1 E1
LIU A0202
Power T1 E1
LIU A0400
Power T1 E1
LIU A1111
Power T1 E1
LIU-A4000
BITS (4/0)
LIU-A0040
Clock (4/0)
LIU-A0004
Clock (0/4)
LIU-A2020
BITS (2/0)
Clock (2/0)
LIU-A2002
BITS (2/0)
Clock (0/2)
LIU_A0202
BITS (0/2)
Clock (0/2)
LIU_A0400
BITS (0/4)
LIU-A1111
BITS (1/1)
Clock (1/1)
IMS - LANTIME M500 Date: 19th March 2020 105
12.6.17.7 LIU Configuration via Web Interface
Output Configuration of a LIU module (Line Interface Unit):
In this menu one can select between E1 or T1 mode for the LIU outputs. The selected mode is the same for all outputs.
T1 or E1?
T1 is a digital carrier signal that transmits the DS - 1 signal. It has a data rate of about 1.544 Mbit/second. It contains 24 digital channels and therefore requires a device that has a digital connection.
E1 is the european equivalent to T1. T1 is the North American term whereas E1 is a European term for digital transmission. The data rate of E1 is about 2 Mbit/second. It has 32 channels at the speed of 64
Kbit/second. 2 channels among 32 are already reserved. One channel is used for signaling while the other is used for controlling. The difference between T1 and E1 lies in the number of channels here.
Sa Bits
ITU-T Recommendations allow for bits Sa4 to Sa8 to be used in specific point-to-point applications (e.g.
transcoder equipment) within national borders. When these bits are not used and on links crossing an international border they should be set to 1.
The Sa4 bit may be used as a message-based data link for operation, maintenance and performance monitoring. The SSM Bit (Synchronization Status Message) can be selected in the Web GUI for clock quality information. Sa4 is selected as per default.
106 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.18 LNO - 10 MHz Sinus Output Module
The LNO180 is a 10 MHz generator card, which provides sine signals with low phase noise to 4 external outputs.
The card has a microprocessor system, which monitors the output signals and generates status signals for the upper-level management system accordingly.
Function of Operation
The card has a high quality oscillator, which is locked to an external 10 MHz signal. The microprocessor monitors the lock status of the PLL and the warm up phase of the oscillator. It activates the outputs only after the phase is locked. This condition is signalized by all LEDs switched from green to red. In the phase locked state the output levels of the four outputs are monitored and in case of a failure signalized by an associated red LED.
Technical Specifications:
Frequency Input: 10 MHz, sine (1V pp min.) or TTL
Output Level: 5 dBm +/- 1 dBm at 50 Ω
Option: LNO-12dB with 12 dBm output level
< 3 @ 25
◦
C within accuracy of < +-1 x 10
-7
Warm-up time:
Electrical Connectors: BNC female
Harmonics:
Phase Noise:
-60 dBc
OCXO SQ
1 Hz
10 Hz
100 Hz
1 kHz
-70 dBc/Hz
-105 dBc/Hz
-125 dBc/Hz
-140 dBc/Hz
Terminal Connector:
Power Supply:
OCXO HQ:
1 Hz
10 Hz
100 Hz
1 kHz
< -85 dBc/Hz
< -115 dBc/Hz
< -130 dBc/Hz
< -140 dBc/Hz
96-pin VG-rail DIN 41612
5 dBm
12 dBm:
+5V @ 550 mA (steady state),
+5V @ 670 mA (warm up)
+5V @ 970 mA (steady state),
+5V @ 620 mA (warm up)
Quartz Filter: Bandwidth 1 kHz
Ambient Temperature: 0 ... 50
◦
C / 32 ... 122
◦
F
Storage Temperature: -20 ... 70
◦
C / -4 ... 158
◦
F
Humidity: max 85%
IMS - LANTIME M500 Date: 19th March 2020 107
LED Status Indicators:
All LEDs red Outputs disabled
PLL not locked,
OCXO in warm up phase
10 MHz reference not available
Quality of the reference signal is not sufficient
All LEDs green: Normal operation, outputs activated
Associated LED red: defect output or short circuit during normal operation
108 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.19 FDM - Frequency Deviation Monitoring
The module FDM180 was designed to calculate and monitor the frequency and its deviation in 50/60Hz power line networks.
A preconnected reference is necessary that provides a serial time string and a PPS (pulse per second). The accuracy of the measurements is derived from these signals. The module calculates the frequency as well as the time, based on the mains frequency. The time deviation (TD) is the difference of this calculated time
(PLT) to the reference time (REF). This time deviation as well as the frequency itself is sent out via serial interface or is beeing converted to an analog voltage output provided by a DAC.
Pin Assignement:
16-pin DMC Phoenix Connector
Pin Signal
——————————————————-
Pin 1
Pin 2
Pin 3
Pin 4
A0
A1
GND n.c.
Pin 5
Pin 6
Pin 7
Pin 8 n.c.
GND
COM 0 RxD in
COM 0 TxD out
Pin 9 - Pin 14
Pin 15
GND
COM 1 RxD in
Pin 16 COM 1 TxD out
——————————————————-
LED Indicator
LED St:
LED In:
LED A:
LED B:
Init blue during inintialisation green - normal operation shows the state after initialisation red ref not connected / FDM not sync yellow ref. signal not useable green blinking Timesync green Accurate (
≤
200 ns to reference) green red green red
FD (Frequency Deviation) within the configured limits
FD Overflow
TD (Time Deviation) within the configured limits
TD Overflow
IMS - LANTIME M500 Date: 19th March 2020 109
Input signal:
Interface:
Output string:
Serial time string, PPS mains frequency, 70 - 270 V AC, 50Hz or 60Hz
Two asynchronous serial RS-232 ports, COM0 and COM1
Baudrate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 Baud
Framing: 7N2, 7E1, 7E2, 8N1, 8N2, 8E1, 7O2 output and average: once per second or 100ms
The frequency, frequency deviation, reference time, power line time and the time deviation are send out in different available formats.
The formats are:
STANDARD FDM String:
F:49.984 FD:-00.016 REF:15:03:30 PLT:15:03:30.368 TD:+00.368[CR][LF]
SHORT FDM String:
FD:-00.016 TD:+00.368[CR][LF]
AREVA FDM String:
[STX]
02049.984[CR][LF]
021-00.016[CR][LF]
022+00.378[CR][LF]
02315 03 30.368[CR][LF]
024068 15 03 30 [CR][LF]
[ETX]
Resolution of
Measurement:
Analog outputs:
Electrical connectors:
Power supply:
Current consumption:
Ambient temperature:
Humidity:
frequency: accuracy the oscillator (10 MHz) +-100 µ Hz time deviation: accuracy of reference (PPS) +- 1ms
2 analog outputs for longtime-recording (time deviation and/or frequency deviation), range: -2.5 V ... +2.5 V, resolution: 16 Bit
96-pin VG-rail DIN 41612
+5 V DC
0.4 A - 1 A
0 ... 50
◦
C / 32 ... 122
◦
F
Max. 85%
More detailed information about FDM - Frequency Deviation Monitoring can be found in the current LANTIME firmware manual, chapter "LTOS6 Management and Monitoring → FDM".
110 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.20 REL1000: Error Relay Module
The REL1000 error relay module can be switched by various operating states (e.g.: Clock Not Sync). If the internal hardware clock is running synchronous to the source, the relay is switched to NO (Normaly Open) mode. In case of an error, the relay switches to NC (Normaly Closed) mode.
Depending on the hardware configuration of the IMS system, i.e. redundant with RSC module and two integrated reference clocks or with SPT module and only one reference clock, different relay states can be switched.
In redundant operation, the two clocks and the changeover unit are monitored as standard (CLK1 - relay
A, CLK2 - relay B, RSC - relay C). This jumper setting is supplied per default in redundant systems.
Possible configurations of Error Output:
Relay A: Clock 1 / Notification Events
→
Relays
Relay B:
Relay C:
Clock 2 / PPS
RSC / 10 MHz / Notification Events
→
Relay
In redundant mode, the jumpers on the REL1000 are set as shown below:
IMS - LANTIME M500 Date: 19th March 2020 111
State of LED Indicators:
Initialisation Phase:
St: blue
A:
B:
C: off off off
Boot Phase:
St: blue
A:
B:
C:
1s red, 1s yellow, 1s green, 1s off
1s red, 1s yellow, 1s green, 1s off
1s red, 1s yellow, 1s green, 1s off
Normal Operation Mode:
St: green (Status)
A:
B:
C: green, red in case of error (Clock 1) green, red in case of error (Clock 2) green, red in case of error (Notification Event)
Technical Specification ERROR Relays:
Switching Voltage: 220 V DC max
/ 250 V AC max
Switching Load: 60 W max
/62.5 VA max
UL/CSA:
Response Time:
0.3 A
0.3 A
1 A ca.3 ms
125 V AC
110 V DC
30 V DC
112 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.20.1 Configuration of the REL1000 via the Web Interface
The relays A + C of the REL1000 module can be switched via notifications events. If the jumpers and hardware configuration are set accordingly, a checkbox can be activated in the web interface menu "Notification
→
Notification Events" for various events, so that the selected relay is switched to error mode on this event.
Selectable events are "NTP not Sync" or "Clock not Sync" for example.
In this figure there are no selection options - the relays are switched in redundant operation via the reference clocks and the RSC switch unit.
This figure shows the menu in a non-redundant system. Relay C can be controlled via notification events.
IMS - LANTIME M500 Date: 19th March 2020 113
12.6.21 SCG-U: Studio Clock Generator
Add-On module for generating various audio frequencies (12 kHz, 32 kHz, 44.1 kHz, 48 kHz, 64 kHz, 88.2
kHz and 96 kHz), with only one 10 MHz input clock, for studio applications. The SCG Module provides four outputs with different frequencies.
The SCG provides a wide range of programmable word clock rates between 24 Hz – 12.288 MHz.
Technical Specifications:
Outputs:
4 x BNC (2.5 V TTL into 75 Ohm) outputs with configureable frequencies
Input Signal:
Current Consumption:
Ambient Temperature:
Humidity:
10 MHz, sinewave or square pulse
5 V +- 5%, @400 mA
0 ... 50
◦
C / 32 ... 122
◦
F
85% max.
114 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.21.1 SCG-U: Configuration via Web Interface
(Firmware version 6.19 or later)
If the SCG-U operates in an IMS system, the module can be easily configured via the web interface then.
Configuration Sample: SCG Output 3
In the "IO Configuration" menu each output frequency can be adjusted seperately. In the figure above the following value is set:
Frequency Out 3 = Base Frequency * Scale
Frequency Out 3 = 44,1 kHz * 1/4
————————————————-
Frequency Out 3 =
11,025 kHz
Overview Configuration SCG-U Sound Clock Generator Outputs 1-4
Output Type: Studio Clock Out
State:
Base Frequency:
Scale:
Disabled
Enabled
32 kHz
44.1 kHz
48 kHz
1/8 to 256
IMS - LANTIME M500 Date: 19th March 2020 115
12.6.22 SCG-B: Studio Clock Generator Balanced
The IMS-M500 is an additional card for generating
"Digi-tal Audio Reference Signals" for studio applications. The 25pin D-Sub female connector provides four
DARS outputs, which can be configured via the web interface.
Technical Spezifications:
Outputs:
1 x 25pin female connector, 4 x DARS, IEC 60958-4 format resolution 24 bits, sampling frequency 48 kHz transformer-balanced
Input Signals:
Power Consumption:
10 MHz (sine wave or square pulse), 1PPS, Time String
5 V +- 5%, @400 mA
Environmental
Temperature:
Humidity:
0 ... 50
◦
C / 32 ... 122 max. 85%
◦
F
Pin Assignment of the 25pin D-SUB female connector
DARS 1
Hot 1
Cold 1
GND 1
Pin 18
Pin 6
Pin 19
DARS 2
Hot 2
Cold 2
GND 2
DARS 3
Hot 3
Cold 3
GND 3
DARS 4
Hot 4
Cold 4
GND 4
Pin 4
Pin 17
Pin 5
Pin 15
Pin 3
Pin 16
Pin 1
Pin 14
Pin 2
116 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.22.1 SCG-B: Configuration via the Web Interface
If the SCG-B is used in an IMS system you can easily configure the Studio Clock Generator via the Web
Interface.
Sample Configuration: Output 1
In the menu "IO Configuration" you can set the output on DARS for every output of the IMS-M500. The four available outputs can optionally be switched off.
IMS - LANTIME M500 Date: 19th March 2020 117
12.6.23 VSG - Video Sync Generator
The VSG is a video signal reference for Studio Equipment with four BNC female output connectors. The Module generates 1x bi-level sync (Black Burst), 1x Tri-Level Sync, 1 x video sync signals (H-Sync, V-Sync or LTC) and 1 x digital video output (DARS). The LANTIME Web Interface can be used for output signal configuration and to query the state of the VSG.
Functionality
The board is synchronized by an external 10 MHz signal. It generates configurable video signals in different formats. The generated signals have a phase reference to 1PPS.
Generated Signals:
SMPTE standards: PAL Blackburst with VITC Support
NTSC Blackburst
Tri Level Sync:
720p/50 Hz (SMPTE296M3)
1080i/25 Hz (SMPTE274M6)
720p/59.94 Hz (SMPTE296M1)
1080i/29.97 Hz (SMPTE274M7)
V-, H-, Frame-Sync for HD and SD formats
(VSG FW
≤
2.05)
LTC (25 fps) (VSG FW ≥ 2.06)
Digital Audio Signal
Status Info:
DARS (AES3id via BNC 75 Ω )
ST: Status of VSG
In: Status of reference input
A: Status Out 1 + 2
B: Status Out 3 + 4
Electrical Connectors:
96-pin VG-rail DIN 41612
Power Consumption:
5 V +- 5%, 250 mA
BNC Connectors:
2x BNC female, unbalanced, 300 mV pp
@ 75 Ω
2x BNC female, unbalanced, 2.5 V TTL @ 75
Ω
Ambient Temperature:
0 ... 55
◦
C
Humidity:
Max. 85%
118 Date: 19th March 2020 IMS - LANTIME M500
12 Attachment: Technical Information
12.6.23.1 VSG Configuration via Web Interface
If the VSG operates in an IMS system, the module can be easily configured via the web interface then.
Overview Configuration VSG Video Sync Generator Outputs 1-4
Output 1
———————————————————————-
Output Type: Video Out
Epoch: TAI D1970-01-01 T00:00:00
UTC D1972-01-01 T00:00:00
GPS D1980-01-06 T00:00:00
Format: 720p/50 Hz (SMPTE296M3)(HD)
1080i/25 Hz (SMPTE274M6)(HD)
720p/59,94 Hz (SMPTE296M1)(HD)
1080i/29,97 Hz (SMPTE274M7)(HD)
Phase Offset: [Offset Value]
———————————————————————-
IMS - LANTIME M500 Date: 19th March 2020 119
Output 2:
———————————————————————-
Output Type: Video Out
Epoch: like Output 1
Format: NTSC (525i)
PAL (625i)
Phase Offset: [Offset Value]
———————————————————————-
120 Date: 19th March 2020 IMS - LANTIME M500
Output 3:
( ≤ VSG FW 2.05)
———————————————————————-
Output Type: Video Sync Out
Signal Type: SD H-Sync
SD V-Sync
SD Frame
HD H-Sync
HD V-Sync
HD Frame
HD Blank
———————————————————————-
Output 3:
(VSG FW ≥ 2.06 - LTOS V7 required)
———————————————————————-
Output Type: LTC Out
Signal Type: LTC 25FPS (Frames Per Second)
———————————————————————-
12 Attachment: Technical Information
IMS - LANTIME M500 Date: 19th March 2020 121
Output 4:
———————————————————————-
Output Type: Digital Audio Out
Signal Type: DARS (AES3id)
———————————————————————-
With the menu tab "Misc", the configuration of the VSG can be stored directly in the EEPROM of the card.
122 Date: 19th March 2020 IMS - LANTIME M500
12.6.24 CES - Chassis Expansion Slot
Standard Basic Configuration:
Error relay contact module for error indication of clock faults. DFK Connectors (3-pin CO/NO/NC).
Additional available signals via
BNC female connector:
- PPS
- 10 MHz
- other signals on request
These Signals are generated by the pre-connected clock.
The error relay output is connected to the TTL
TIME_SYNC output of the reference clock (GPS,
GLONASS ...).
If the internal reference clock has been synchronized by its source, the relay will switch to mode "NO" (Normaly Open). In error case the relay switched to mode "NC" (Normaly Closed).
Error Output:
Relay:
Technical Specifications:
Clock (IMS receiver)
Switching Voltage max.: 125 V DC
140 V AC
Switching Current max.: 1A
Switching Load max.: DC
AC
Response Time:
0.46 A
1A ca. 2 ms
30 W
60 VA
140 V AC
65 V DC
30 V DC
12 Attachment: Technical Information
IMS - LANTIME M500 Date: 19th March 2020 123
13 RoHS and WEEE
Compliance with EU Directive 2011/65/EU (RoHS)
We hereby declare that this product is conform to the
European Directive 2011/65/EU and its delegated directive 2015/863/EU “Restrictions of Hazardous Substances in Electrical and Electronic Equipment”. We ensure that electrical and electronic products sold in the EU do not contain lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls (PBBs), and polybrominated diphenyl ethers (PBDEs), Bis
(2-ethylhexyl)phthalat (DEHP), Benzylbutylphthalat
(BBP), Dibutylphthalat (DBP), Diisobutylphthalat
(DIBP), above the legal threshold.
WEEE status of the product
This product is handled as a B2B (Business to Business) category product. In order to secure a WEEE compliant waste disposal it has to be returned to the manufacturer. Any transportation expenses for returning this product (at its end of life) have to be incurred by the end user, whereas Meinberg will bear the costs for the waste disposal itself.
124 Date: 19th March 2020 IMS - LANTIME M500
14 Declaration of Conformity
14 Declaration of Conformity
Konformitätserklärung
Doc ID: IMS - LANTIME M500-2020-03-19
Hersteller
Manufacturer
Meinberg Funkuhren GmbH & Co. KG
Lange Wand 9, D-31812 Bad Pyrmont erklärt in alleiniger Verantwortung, dass das Produkt,
declares under its sole responsibility, that the product
Produktbezeichnung
Product Designation
IMS - LANTIME M500
auf das sich diese Erklärung bezieht, mit den folgenden Normen und Richtlinien übereinstimmt:
to which this declaration relates is in conformity with the following standards and provisions of the directives:
——————————————————————————————————————————————-
RED – Richtlinie
RED – Directive
ETSI EN 303 413 V1.1.1 (2017-06)
2014/53/EU
——————————————————————————————————————————————-
EMV – Richtlinie
EMC – Directive
Draft ETSI EN 301 489-1 V2.2.0 (2011-09)
Draft ETSI EN 301 489-19 V2.1.0 (2011-09)
2014/30/EU
DIN EN 61000-6-2:2005
DIN EN 61000-6-3:2007 + A1:2011
DIN EN 55032:2015
DIN EN 55024:2010
DIN EN 61000-3-2:2014
DIN EN 61000-3-3:2013
——————————————————————————————————————————————-
Niederspannungsrichtlinie
Low-voltage Directive
DIN EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011 +
AC:2011 + A2:2013
2014/35/EU
——————————————————————————————————————————————-
RoHS – Richtlinie
RoHS – Directive
DIN EN 50581:2012
2011/65/EU + 2015/863/EU
——————————————————————————————————————————————-
Bad Pyrmont, 2020-03-19
IMS - LANTIME M500 Date: 19th March 2020 125
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Key Features
- Supports Precision Time Protocol (PTP)
- Provides accurate and reliable time synchronization
- Compliant with IEEE 1588v2
- Offers a variety of reference input and output options
- Robust design for demanding applications
- Advanced synchronization capabilities