EKOSync 1588

PTP / NTP TIME SERVER

USER MANUAL

Document Revision No: 3.2

Safety

For your safety, the following general safety precautions must be observed during all phases of operation of this instrument.

WARNING! THIS DEVICE MUST BE EARTHED

Do not use this equipment in a manner not specified by the manufacturer. The protective features of this product may be impaired. It could cause unavoidable damage to the equipment, personal injury and/or death.

Reviewing the complete documentation before installing or operating the instrument is important.

WARNING! HAZARDOUS VOLTAGES CAN CAUSE SHOCK, BURNS AND DEATH.

The power plug shall be disconnected from all voltage sources before it is opened for any adjustment, replacement, maintenance or repair.

Any adjustment, maintenance and repair of the opened instrument under voltage shall be avoided and, if unavoidable, shall be carried out only by a qualified person who is aware of the general device test practices.

All recommended equipments that should be earthed. Any interruption of the mains earth conductor inside or outside the instrument will make the instrument dangerous.

Do not install substitute parts or perform any unauthorized modification to the product.

Unless otherwise specified in the documentation, there are no user-serviceable parts inside this instrument.

Instruments that appear damaged or defective should be secured against unintended operation until they can be repaired by qualified service personnel.

This instrument is intended for use in dry, indoor locations only.

Do not wet the instrument when cleaning it.

Safety Symbols

These symbols, which have these meanings, may be marked on this instrument.

EARTH (GROUND) TERMINAL

1

EKOSync 1588 User Manual rev 3.2

Table of Contents

I. FEATURES & SPECIFICATIONS………………………………………………………………………………………...4

1 Description……………………………………………………………………………..4

2 Features………………………………………………………………………………….4

3 Specifications………………………………………………………………………….4

Electrical……………………………………………………………………………………….4

Networking…………………………………………………………………………………..5

Environmental Specifications……………………………………………………….6

Mechanical Specifications…………………………………………………………….6

Antenna Port Specifications………………………………………………………….6

EKOSync 1588 User Manual rev 3.2

2

II. OPERATION DESCRIPTIONS……………………………………………………………………………………………….…7

1 Precise Time Synchronization……………………………………………………….7

The IRIG-B Time Code Standard………………………………………………………………7

Network Time Protocol / Simple Network Time Protocol……………………….8

SNTP………………………………………………………………………………………………………8

NTP / SNTP in the EKOSync 1588…………………………………………………………...9

FREQ……………………………………………………………………………………………………...9

ALARM RELAY………………………………………………………………………………………..9

2 IEEE 1588 / PTP / C37.238………………………………………………………

10

III. INSTALLATION…………………………………………………………………………………………………………………….12

Device Hardware…………………………………………………………………………..12

Hardware Installation……………………………………………………………………14

IV. CONFIGURATION & SETTINGS……………………………………………………………………………………………..15

1

Front Panel Overview……………………………………………………….….

15

2

Accessing the PTP/NTP TIME SERVER…………………………………..

18

3

EKOSync 1588 User Manual rev 3.2

EKOSync 1588 PTP TIME SERVER

I. FEATURES & SPECIFICATIONS

1

Description

EKOSync 1588 PTP Time Server provides sub-microsecond accuracy time information for synchronizing energy distribution subsystem intelligent electronic devices, and proceeding according to IEEE 1588 v2 time protocol. Product includes adjustable hold-over times for discontinuities with GPS communication, and compensation for antenna reception distortions.

2

Features



DC IRIG-B (Unmodulated, DCLS - C37.118, not ready in this version)



TCP/IP remote M&C management option



Synchronized TOD (Time of Day) and PPS (Pulse per second) outputs



User defined 10MHz/5MHz frequency output



TCP/IP configuration option



NTP/ SNTP (IEC 61850)



SNMP v1, v2c & v3



IEEE 1588 PTP Server



18-75V DC Isolated power supply



Password protection and user authentication

3

Specifications

Electrical:

Input

Power Supply

Voltage:

18 to 75V DC

Power consumption: 10W max

Ethernet (RJ45 UTP)

10/100Mbps

Isolation

Power to GPS input

Power to I/O

Outputs

Relay output

4 TTL outputs

3 kV

3 kV

250V 150mA

Time codes or pulses or user defined

4

EKOSync 1588 User Manual rev 3.2

Electrical specification:

TTL/CMOS compatible 0-5 V, 150 mA sink/source

Timing accuracy: ≤50 ns to UTC

Networking:

GENERAL

DHCP:

VLAN:

Auto-configuration with fall back to ARP

tested link-local address

Packet tagging

PTP (IEEE 1588 V2)

General:

One-step or two-step operation

End-to-end or peer-to-peer delay calculations

Layer 2 (Ethernet) or Layer 3 (UDP) transport

Slave only mode

Default Profile support

Power Profile support:

TLV support:

C37.238

C37.238 offset from TAI time base used by PTP

Alternate Time Offset TLV support: with automatic or manual offset

SNMP MIB support:

C37.238

NTP

General:

Stratum-1 NTP & SNTP time server

Multicast & Broadcast server capability

Optional MD5 authentication

SNMP

General: V1, V2C, and V3 support, independently

enabled

Configurable V1 and V2C community names and security groups

Fully configurable via SNMP

V3 User-based Security Module (USM) support

USM MIB support

USM authentication methods: MD5, SHA

USM privacy methods:

DES, AES

5

EKOSync 1588 User Manual rev 3.2

NOTIFICATIONS

General:

SNMP trap generation V1, V2C, and V3

SNMPv3 traps authenticated and privatized via USM

Syslog (RFC-3164 and 5424 verities)

Environmental Specifications:

Operating and Storage conditions

Operating Temperature

-20° to 60°C (-4 to 140°F) according to

UL 60950

-20° to 70°C (-4 to 158°F) according to

IEC 60065

Storage Temperature

-20° to 70°C (-4 to 158°F)

Operating Ambient Humidity 3% to 97% (non-condensing conditions)

Altitude

3000m (9842 ft)

Mechanical Specifications:

Dimensions (H x W x D)

Weight

Antenna Port Specifications:

Voltage

Current

Impedance

47 x 442 x 262 mm

3.920 kg

3.3 VDC

100 mA (max)

50 Ω

6

EKOSync 1588 User Manual rev 3.2

II. OPERATION DESCRIPTIONS

1

Precise Time Synchronization

Precision Time Protocol (PTP), included in IEEE standard 1588 was originally designed to provide timing for critical industrial automation. PTP identifies two types of clocks, masters and slaves. A clock in a terminating device is known as an ordinary clock, a clock in a transmission component like an

Ethernet Switch as a boundary clock. A master which is controlled ideally by a radio clock or a GPS receiver, synchronizes the slaves connected to it respectively.

PTP time server, namely GPS Clock, which provides synchronization in PTP (IEEE 1588) protocol on

Ethernet network by using time from GNSS satellites utilizes existing data network so that an installation of a separate timing network is eliminated. Its 25ns accuracy and redundancy mechanisms are also advantages of new generation synchronization system.

Control, protection and measurement devices in modern electric grids need correct time for synchronous operation. To identify the sequence of events in case of unexpected outage, to manage the grid synchronously and to be able to make the measurements in the required accuracy a modern synchronization protocol is needed.

The IRIG-B Time Code Standard

IRIG‐B is the industry standard for GPS time synchronization. The IRIG time codes were originally developed by the Inter-Range Instrumentation Group (IRIG), part of the Range Commanders

Council (RCC) of the US Army. IRIG time code B is widely used in the electrical power industry.

IRIG-B refers to a serial time code format. The IRIG-B time code consists of 100 bits produced every second, 74 bits of which contain various time, date, time changes and time quality information of the time signal. IRIG-B sends Day of Year, Hour, Minute and Second data on a 1KHz carrier, with an update rate of one second. IRIG-B DCLS (DC level shift) is IRIG-B without the 1KHz carrier.

There are three methods of communicating analogue pulses in the IRIG Standard:

• Modulated : amplitude-modulated, sine wave carrier

• Unmodulated :DC level shift, no carrier signal

• Modified Manchester : amplitude-modulated, square wave carrier

Three types of coded expressions are used in the IRIG standard:



Binary Coded Decimal time-of-year (BCDTOY) and year (BCDYEAR)



Control Functions (CF), set of bits reserved for user applications



Straight Binary Seconds (SBS) time-of-day (0 to 86400 seconds)

7

EKOSync 1588 User Manual rev 3.2

A comparison of IRIG-B coding methods is given in the figure below.

Network Time Protocol / Simple Network Time Protocol

Network Time Protocol (NTP) has been the traditional way to synchronization time over

Ethernet networks. NTP allows time synchronization up to 100 milliseconds. The IEEE 1588 PTP is required to achieve tighter synchronization.

There is NTP led on front panel. When the NTP is enable, the led is ON. To enable the NTP server of the PTP/NTP Time Server check the Enable checkbox in the NTP configuration page.

PTP is basically a faster version of NTP. IEEE 1588 is designed for local systems requiring very high accuracies beyond those attainable using NTP, which is sufficient to transfer data across networks at speeds of up to 10 Mbps. As data rates have increased, the need for synchronised transmission and reception have increased with it. At speeds of 1 Gbps and above,

PTP is necessary.

SNTP

A less complex implementation of NTP, using the same protocol but without requiring the storage of state over extended periods of time, is known as the Simple Network Time Protocol

(SNTP). It is used in some embedded devices and in applications where high accuracy timing is not required.

8

EKOSync 1588 User Manual rev 3.2

NTP / SNTP in the EKOSync 1588

The EKOSync 1588 can act as an NTP or SNTP server, and is intended to be an NTP time server.

The EKOSync 1588 synchronizes to GPS to provide accurate timing signals, and NTP time signals are published through the clock Ethernet port.

FREQ

The EKOSync 1588 has one Frequency out port which produces 5-10-20-25MHz.

ALARM RELAY

Connect the Sync indication relay to the alarm circuit if required.

(C = Common, NO = Normally Open, NC = Normally Closed)

Example;

The relay alarms when the antenna problems or poor sky view.

9

EKOSync 1588 User Manual rev 3.2

IEEE 1588 / PTP / C37.238

The purpose of the IEEE 1588 Precision Time Protocol (PTP) is to synchronize the time between different nodes on an Ethernet network. 1588 accounts for the variable delay to packets from Ethernet switches that inhibits path delay measurements, and allows accuracy down to the nanosecond level at end-device clocks.

The protocol enables heterogeneous systems that include clocks of various inherent precision, resolution, and stability to synchronize to a grandmaster clock.

The protocol defines synchronization messages used between a Master and Slave clock similar to the Server and Client mode used in the Network Time Protocol (NTP). The Master is the provider of time, and the Slave synchronizes to the Master. A grandmaster is a Master that is synchronized to a time reference such as GPS or CDMA.

Synchronization is achieved using a series of message transactions between master and slaves. Four timestamps are captured between the Master and Slave clock. The timestamps are required for the Slave offset calculation. The timestamps are commonly referred to as T1, T2,

T3, and T4.

IEEE 1588 Master-Slave offset measurement

The figure shows a possible PTP synchronization network topology. The grandmaster clock is the primary time source, a boundary clock creates segmented synchronization subdomains, and ordinary clocks synchronize to the boundary clock through end-to-end transparent clocks.

10

EKOSync 1588 User Manual rev 3.2

IEEE 1588 synchronization network

Grandmaster Clock

The root timing reference is called the grandmaster. The grandmaster transmits synchronization information to the clocks residing on its network segment. A grandmaster clock is the highest-ranking clock within its PTP subdomain and is the primary reference source for all other PTP elements. In a PTP network a grandmaster is the node that defines the correct time.

Ordinary Clock

An ordinary clock is a PTP clock with a single PTP port. It could be a master clock (grandmaster) or a slave clock. Ordinary clocks are the most common device within a PTP network.

Boundary Clock

A boundary clock is a device between PTP grandmaster and PTP slave clients. A boundary clock has multiple network connections and can act as a source (master) and a destination (slave or client) for synchronization messages. The boundary clock intercepts and processes all PTP messages and passes all other traffic.

Transparent Clocks

Transparent clocks measure and adjust for packet delay. The transparent clock computes the variable delay as the PTP packets pass through the switch. There are two types of transparent clocks, end-to-end and peer-to-peer. End-to-end transparent clocks update the time interval field for the delay associated. However peer-to-peer transparent clocks measure the line delay associated. Transparent clocks improve synchronization between the master and slave clocks and ensure that the master and slave clocks are not impacted by the effects of packet delay variation.

11

EKOSync 1588 User Manual rev 3.2

III. INSTALLATION

1 Device Hardware

Front Panel View

Rear Panel View

EKOSync 1588 User Manual rev 3.2

12

Mechanical Sizes

EKOSync 1588 User Manual rev 3.2

13

Hardware Installation

1. Install the antenna in a location with a clear sky view.

2. Install the EKOSync 1588 in the desired location and connect to the antenna.

3. Connect the EKOSync 1588 to the network switch.

4. Connect to power, ensuring the correct DC voltage (18 - 75VDC) is used.

5. Connect the Sync indication relay to the alarm circuit if required.

(C = Common, NO = Normally Open, NC = Normally Closed)

6. Once the EKOSync 1588 is installed and configured, connect the clock outputs to your devices.

– An RG58 cable is recommended to connect devices to the output ports.

– A termination resistor of 120 Ω can be added to the end of a TTL run to achieve good impedance matching.

14

EKOSync 1588 User Manual rev 3.2

IV. CONFIGURATION & SETTINGS

1 Front Panel Overview

This section explains use of the front panel.

LED Indicators

Front panel of the EKOSync 1588 contains six LEDs:

Label

PWR

PTP

NTP

TP

Off

Not powered

Disable

Disable

Disable

Flashing

-

SPD

LNK

10 Mbps

Ethernet line not connected

-

Data Activity

Menu Architecture

1 -LANGUAGE

1 -ENGLISH

2 -FRENCH

3 -TURKISH

Choose your language in this part.

2 -GPS CONFG.

1 -QUALITY PARAMTRS

2 -BACK

3 -MAIN

3 -SYNC CONFG.

1 -SYNCH1-SYNCH3 → 1 –PPS → 1 –PULSE PERIOD

On

Powered

Enable

Enable

Enable

100 Mbps

Line OK

EKOSync 1588 User Manual rev 3.2

15

1- 1s

2- 60s

3- 3600s

2 –PULSE DURATION

1 -100 ms

2 -200 ms

3 -500 ms

3 –EDGE MODE

1 –RISING

2 –FALLING

4 –BACK

5 –MAIN

2 –FREQ → 1 -5 MHz

2 -10 MHz

3 -20 MHz

4 -25 MHz

5 -DISABLE

3 –IRIG-B → 1 –IRIG-B 003

2 –IRIG-B 002

3 –DISABLE

4–BACK

2 -SYNCH4 → 1 –TOD PORT OPT. → 1 –BAUD RATE

1 -4800

2 -9600

2 –PARITY

3 –STOP BITS

4 –DATA BITS

5 –BACK

6 –MAIN

2 –PPS/TOD MODE

3 –ENABLE

4 –ASCII PROTOCOL → 1 –NMEA

2 –ASCII

3 –CM

5 -BACK

6 -MAIN

3 –SYNC MODE

4 -BACK

5 -MAIN

4 -LOCAL TIME OFFS.

1 –UTC

2 –LOCAL → 1 –MIT 14 –EAT

2 –HST 15 –MET

3 –AST 16 –NET

4 –PST 17 –PLT

16

EKOSync 1588 User Manual rev 3.2

5 –MST, PNT 18 –IST

6 –CST 19 –BST

7 –EST, IET 20 –VST

8 –PRT 21 –CTT

9 –CNT 22 –JST

10 –AGT, BET 23 –ACT

11 –UTC, GMT, WET 24 –AET

12 –ECT 25 –SST

13 –EET, CAT, ART 26 –NST

5 -LAN CONFG.

IP: 168. 1. 103

Enable Static IP

BACK

MAIN

6 -PRODUCT RELEASE

RELEASE

1 –R1. 0/1.0

7 -EXIT

Returns the main menu.

17

EKOSync 1588 User Manual rev 3.2

2 Accessing the PTP/NTP TIME SERVER

From a PC in your local area network open a Web browser window and configure with an IP address

192.168.0.1.103:7070. Also, you can assign an IP address within your local network.

When you write IP address on your web browser, you will see this picture in the bottom;

Kullanıcı Adı :

Parola : admin nimda

EKOSync 1588 User Manual rev 3.2

18

Once you access correctly, the following main screen will appear:

General Commands:

Save: This command saves the configuration changes to

TIME SERVER

flash memory, so they will be available next time the

TIME SERVER

reboots.

Clear statistics: Clear all of statistics.

Reboot: It restarts the

TIME SERVER

.

Reflash: This option allows a firmware upgrade in the

TIME SERVER

.

19

EKOSync 1588 User Manual rev 3.2

From Home button;

You see general informations about time server. These informations such as the hostname, location, contact and model of the

PTP/NTP Time Server

are provided. In addition; you can change your passwords.

From Configuration button;

In this menu you will be able to configure many parts as following;

 Administration: you can change http and https ports. Once configuration is complete, click the Send icon.

EKOSync 1588 User Manual rev 3.2

20

 LAN: For Static IP settings, check the Enable box in the LAN area. Also, you can change

IP address manually. Once configuration is complete, click the Send icon. Then, click the save tab, and press the OK button.

If you change the IP address, you should write new IP address on your web browser.

Then click the save tab, and press the OK button.

 SNMP:

SNMP agent is enabled by ticking the Enable checkbox. Once SNMP agent is up and running, the user needs to activate traps notifications by ticking Traps Enable.

Community “public” will only have read access to

TIME SERVER

MIB variables, community “private” will have read and write access to

TIME SERVER

MIB variables. Define the type of Access: ro (read only) or rw (read and write). Press Send icon.

Also, define the host 0.0.0.0 where

TIME SERVER

will send SNMP traps. Enter the IP address of the host where the

TIME SERVER

will send the traps. Enter the destination Port for the traps.

By default is 162. Press Send icon.

21

EKOSync 1588 User Manual rev 3.2

 NTP:

Click the NTP tab, and check Enable if not already checked. Also, you can change NTP mode which choose one Unicast, Many cast, Broadcast or Mixed.

 PTP:

Click the PTP tab. Check Enable, if not already checked. 1588 accounts for the variable delay to packets from Ethernet switches that inhibits path delay measurements, and allows accuracy down to the nanosecond level at end-device clocks.

22

EKOSync 1588 User Manual rev 3.2

From Statistics button:

General statistics on the

NTP/PTP TIME SERVER

will appear, such as:

- Uptime: Running time of the

TIME SERVER

, from the last time of turning on.

- Time (UTC): Date and time indication in UTC format.

- Time (Local): Date and time indication according to the selected time zone.

23

EKOSync 1588 User Manual rev 3.2