TereScope_1000P_User_Manual ML47957 Rev. 02

TereScope_1000P_User_Manual ML47957 Rev. 02
TereScope 1000P
Gigabit Ethernet Photonic Air Link
User Manual
MRV Communications, Inc.
URL: http://www.mrv.com
TereScope 1000P
ML47957, Rev. 02
October 2005
Standards Compliance
This equipment is designed to comply with UL 1950; CSA 22.2 No 950; FCC Part 15 Class B; CE89/336/EEC, 73/23/EEC, IP-66.
FCC Notice
WARNING: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user will be required to correct for
the interference at his own expense.
The user is cautioned that changes and modifications made to the equipment without approval of the
manufacturer could void the user’s authority to operate this equipment.
It is suggested that the user use only shielded and grounded cables when appropriate to ensure compliance
with FCC Rules.
CE Mark
The CE mark symbolizes compliance with the EMC directive of the European Community. Such marking is
indicative that the specified equipment meets or exceeds the following technical standards:
•
EN 55022 – Limits and Methods of Measurement of Radio Interference Characteristics of
Information Technology Equipment
•
EN 50081-1 – Electromagnetic compatibility of Radio Interference Characteristics of Information
Technology Equipment – Generic Emission standard Part 1: Residential commercial and light
industry environment
•
EN 50082-1 – Electromagnetic compatibility – Generic immunity standard Part 1: Residential,
commercial and light industry environment
•
EN61000-4-2 (previously IEC 1000-4-2) – Electromagnetic compatibility for industrial-process
measurement and control equipment – Part 4, Section 2: Electrostatic discharge requirements
•
EN61000-4-3 (previously IEC 1000-4-3) – Electromagnetic compatibility for industrial-process
measurement and control equipment – Part 4, Section 3: Radiated electromagnetic field
requirements
•
EN61000-4-4 (previously IEC 1000-4-4) – Electromagnetic compatibility for industrial-process
measurement and control equipment – Part 4, Section 4: Electrical fast transient/burst requirements
•
EN61000-4-5 – Electromagnetic compatibility for industrial-process measurement and control
equipment – Part 4, Section 5: Surge Immunity requirements
•
EN61000-4-6 – Electromagnetic compatibility for industrial-process measurement and control
equipment – Part 4, Section 6: Immunity to conducted disturbances induced by radio frequency
fields
•
EN61000-4-8 – Electromagnetic compatibility for industrial-process measurement and control
equipment – Part 4, Section 8: Power frequency magnetic field immunity requirements
•
EN61000-4-11 – Electromagnetic compatibility for industrial-process measurement and control
equipment – Part 4, Section 11: Voltage dips short interruptions and voltage variations immunity
requirements
•
EN61000-3-2 – Harmonic standard
•
EN61000-3-3 – Voltage Fluctuation and Flicker standard
•
CISPR 22 – Radiated and Line-conducted Class B
•
EN 60950 – ITE Safety
A ‘Declaration of Conformity’, in accordance with the above standards, has been made and is on file at
MRV ®.
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TereScope 1000P
October 2005
ML47957, Rev. 02
MRV® Laser Safety Certification
The TereScope 1000P is designed, built, and tested to be eyesafe, even if the output beams are viewed
directly, provided that no magnifying optics are used.
This product is Class 1 according to the American National Standard for Safe Use of Lasers ANSI Z136.11993 provided that there is no reasonable probability of accidental viewing with optics in the direct path of
the beam where the TereScope 1000P is installed.
This product is Class 1M according to the International Standard of the International Electrotechnical
Commision IEC 60825-1, Amendment 2, January 2001 entitled “Safety of laser products.” The following
explanatory label is applicable to these products:
LASER RADIATION
DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS
(BINOCULARS OR TELESCOPES)
CLASS 1M LASER PRODUCT
This product complies with United States FDA performance standards for laser products except for
deviations pursuant to Laser Notice No. 50 as published in June, 2001, which allows for the use of the IEC
60825-1 classification standard. Under this standard, these products are Class 1M.
A ‘Declaration of Conformity’, in accordance with the above standards, has been made and is on file at
MRV.
Disclaimer
MRV® reserves the right to make changes to any technical specifications in order to improve reliability,
function or design.
MRV reserves the right to modify the equipment at any time and in any way it sees fit in order to improve it.
MRV provides this document without any warranty of any kind, either expressed or implied, including, but
not limited to, the implied warranties of merchantability or fitness for a particular purpose.
The user is advised to exercise due discretion in the use of the contents of this document since the user
bears sole responsibility.
Trademarks
All trademarks are the property of their respective holders.
TereScope® is a registered trademark of MRV Inc.
Copyright © 2003 by MRV
All rights reserved. No part of this document may be reproduced without the prior permission of MRV.
This document and the information contained herein are proprietary to MRV and are furnished to the
recipient solely for use in operating, maintaining and repairing MRV equipment. The information within may
not be utilized for any purpose except as stated herein, and may not be disclosed to third parties without
written permission from MRV.
Document Number: ML47957
Document Revision: Rev. 02
Contact Information
For customer support, you can:
•
Contact your local MRV representative
•
E-mail us at [email protected]
•
Visit our MRV Web site at http://www.mrv.com
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Release Date: October 2005
TereScope 1000P
ML47957, Rev. 02
October 2005
Contents
About this Manual .............................................................................8
Purpose............................................................................................................8
Audience..........................................................................................................8
Qualifications ............................................................................................... 8
Training........................................................................................................ 8
Experience................................................................................................... 8
Authorization................................................................................................ 8
Latest Revision ...............................................................................................8
Related Documents ........................................................................................8
Acronyms ........................................................................................................9
Safety Requirements.........................................................................9
When Installing ...............................................................................................9
During Operation ..........................................................................................10
Overview ..........................................................................................11
General...........................................................................................................11
Features .........................................................................................................11
Advantages....................................................................................................12
Applications ..................................................................................................12
Layout ............................................................................................................13
Pre-Installation ................................................................................14
General...........................................................................................................14
Tools & Equipment .......................................................................................14
Site Survey Procedure..................................................................................15
Site Suitability ............................................................................................ 15
Line of Sight............................................................................................... 15
Range and Location................................................................................... 15
Mounting Environment & Stability .............................................................. 18
Transmitting through a Window ................................................................. 20
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Routine Checks for Adjustments ................................................................ 21
Ordering Equipment ................................................................................... 21
Installation ....................................................................................... 22
Fiberoptic Cable ........................................................................................... 22
General ...................................................................................................... 22
Handling..................................................................................................... 22
Testing ....................................................................................................... 22
Laying ........................................................................................................ 24
Preparation ................................................................................................ 24
Connection ................................................................................................. 24
Mounting ....................................................................................................... 24
Mounting Accessories ................................................................................ 25
Mounting Procedure................................................................................... 25
Special Mounting Techniques..................................................................... 26
Mounting on the Floor ................................................................................ 27
Mounting on a Fragile/Crumbly Wall .......................................................... 27
Alignment...................................................................................................... 28
General ...................................................................................................... 28
Tools and Equipment ................................................................................. 28
Procedure .................................................................................................. 28
Connecting the TereScope 1000Ps, Media Converters............................. 32
Link Test ....................................................................................................... 35
Installation Log............................................................................................. 35
Troubleshooting.............................................................................. 36
Appendix A: Product Specification.............................................. 37
Appendix B: Required Materials................................................... 39
Optic Module................................................................................................. 39
Installation Tools.......................................................................................... 39
Equipment for Fiber Test and Link Alignment........................................... 39
Appendix C: Site Survey Form ..................................................... 40
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Appendix D: Cleaning Optical Connectors ..................................41
General...........................................................................................................41
Tools and Equipment....................................................................................41
Procedure ......................................................................................................41
Appendix E: Installation Log.........................................................42
Appendix F: Received Signal Power vs Distance .......................46
Appendix G: Cabling......................................................................48
Cabling...........................................................................................................48
Appendix H: MC102/G/SX/PAL ......................................................49
General...........................................................................................................49
Models............................................................................................................49
Layout ............................................................................................................49
Front .......................................................................................................... 49
Rear ........................................................................................................... 50
Ambient Temperature ...................................................................................50
Mounting........................................................................................................51
Cabling...........................................................................................................51
Fiberoptic ................................................................................................... 51
Switch Side ................................................................................................ 51
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Figures
Figure 1: Typical Application of TereScope 1000P........................................................ 12
Figure 2: Front View of TereScope 1000P..................................................................... 13
Figure 3: Rear View of TereScope 1000P ..................................................................... 14
Figure 4: Optimal Mounting............................................................................................ 16
Figure 5: Acceptable Mounting ...................................................................................... 16
Figure 6: Unrecommended Mounting ............................................................................ 17
Figure 7: Unacceptable Mounting .................................................................................. 17
Figure 8: Mounting Locations in Order of Preference .................................................... 18
Figure 9: Parapet/Ledge Mounting (using JMP only).................................................... 19
Figure 10: Wall Mounting (using JMP and JMB)........................................................... 19
Figure 11: Floor Pedestal Mounting (using JMP and M015C) ...................................... 19
Figure 12: Wall Pedestal Mounting (using JMP and M054C) ....................................... 19
Figure 13: Extended Wall Mounting (using JMP and M062C) ...................................... 20
Figure 14: Arrangement for Transmitting through a Window ......................................... 21
Figure 15: Light Source (left) and Optical-Power Meter (right) – Examples .................. 23
Figure 16: TereScope 1000P with Mounting Plate and O-Ring ..................................... 26
Figure 17: Drawing of Vertical Mounting Brackets (JMBs) ............................................ 26
Figure 18: Mounting on a Concrete Slab ....................................................................... 27
Figure 19: Mounting on a Fragile Wall ........................................................................... 28
Figure 20: Fine Alignment Motion Screws – Rear View................................................. 29
Figure 21: Connectors for Fiberoptic Cables ................................................................. 30
Figure 22: Beam (circle) on Receiver (rectangle) after Horizontal Alignment................ 31
Figure 23: Final Beam after Horizontal and Vertical Alignment ..................................... 31
Figure 24: Flange and Fiberoptic Cable Duct ................................................................ 32
Figure 25: Extracting the Terminal Block by the Yellow Wire Loop ............................... 32
Figure 26: Extracting the Terminal Block by a Pair of Pliers.......................................... 33
Figure 27: Insertion of the Terminal Block and Fiber Strain Relief ................................ 33
Figure 28: Connection of the Wires from the TereScope 1000P to the Heating Power
Supply Connector ................................................................................................... 34
Figure 29: Interconnection of TereScope 1000P, Media Converters, & Switches ......... 34
Figure 30: Air Link Distance vs Expected Received Signal Power ................................ 47
Figure 31: MC102G/P Layout ........................................................................................ 49
Tables
Table 1: TereScope 1000P Features............................................................................. 11
Table 2: Air Link Distance vs Minimum Required Received Signal Power/Voltage....... 46
Table 3: Front Panel LEDs............................................................................................. 50
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October 2005
About this Manual
Purpose
This manual is intended for the user who wishes to install, operate, manage, and
troubleshoot the TereScope 1000P1 photonic air link.
Audience
Qualifications
Users of this manual are expected to have working knowledge of:
•
Fiberoptic Cabling
•
LAN equipment (Layer 2)
Training
Installers are required to do a training course on MRV TereScopes that includes:
•
IR links (site survey, installation equipment, alignment, etc.)
•
Indoors and outdoors installation
•
On-the-job-training
•
Proficiency tests
Experience
Installers are required to have experience in LAN installation and IR equipment
installation.
Authorization
When all the requirements specified above (namely, Qualifications, Training, and
Experience) have been met, the installer is required to receive authorization from
MRV certifying eligibility.
Latest Revision
The latest revision of the user manual can be found at:
ftp.international.mrv.com/support/tech_data
Related Documents
•
1
Release Notes for TereScope 1000P – if applicable. (This document
contains information not found in the User Manual and/or overriding
information.)
TereScope is a trademark of MRV.
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TereScope 1000P
ML47957, Rev. 02
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• TereScope Installation Guide (Publication No. 46366)
•
Acronyms
CATV
Cable Antenna TeleVision
CLI
Command Line Interpreter
GPS
Global Positioning System
IR
Infra-Red
MTBF
Mean Time Between Failures
NA
Numerical Aperture
PVC
PolyVinyl Chloride
RSSI
Receiver Signal Strength Indication
STP
Shielded Twisted-Pair
TELNET
(dial-up) TELephone NETwork (connection protocol)
UTP
Unshielded Twisted-Pair
Safety Requirements
Caution!
To reduce risk of injury and to maintain proper operation, ensure that the
safety requirements stated hereunder are met!
When Installing
•
Ensure, by visual inspection, that no part of the TereScope 1000P is
damaged.
•
Avoid prolonged eye contact with the laser beam.
•
Ensure that the system is installed in accordance with ANSI Z136.1
control measures (engineering, administrative, and procedural controls).
•
Ensure that the system is installed in accordance with applicable building and
installations codes.
•
Install the TereScope 1000P in a restricted location as defined in this manual
since it is a Class 1M FSOCS transmitter and receiver. A restricted location is
a location where access to the transmission equipment and exposed beam is
restricted and not accessible to the general public or casual passerby.
Examples of restricted locations are: sides of buildings at sufficient heights,
restricted rooftops, and telephone poles. This definition of a restricted location
is in accordance with the proposed IEC 60825-I Part 12 requirements.
•
Avoid using controls, adjustments, or procedures other than those
specified herein as they may result in hazardous radiation exposure.
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During Operation
Avoid prolonged eye contact with the laser beam.
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TereScope 1000P
October 2005
ML47957, Rev. 02
Overview
General
TereScope 1000P is a wireless optical communication link for transferring Gigabit
Ethernet data over a distance of up to 260 m (842 ft) at 30 dB/km.
The TereScope 1000P is unique in that data transmission and reception is fully
optical. Most wireless optical links have an interface unit for transferring data
between the transmission lines and air transciever. In the TereScope 1000P,
optical data is directly transferred between a special fiberoptic cable and the air,
using appropriate beam-shaping optics, without any intermediate processing
electronics. This technology eliminates all the disadvantages of electrical
components (e.g., electric power, RFI/EMI, etc.) while providing all the inherent
advantages of optics (e.g., large bandwidth, greater reliability, higher security,
etc.).
The TereScope 1000P is used with a special fiberoptic cable and electro-optic
module provided by MRV. The fiberoptic cable has differing transmit and receive
fibers. The Terescope 1000P outdoor unit should interface with the MC102G/P
media converter only, via the supplied fiberoptic cable.
The Terescope 1000P has a special proprietary coating on the lenses in order to
prevent condensation effects on the lenses. As an additional safety measure
against moisture build-up on its lenses, the TereScope 1000P system also
includes an optional heating element. This heating element is powered by a
power supply (supplied with the TereScope 1000P system) located near the
media converter via an extra-low-voltage power limiting circuit and two copper
conductors integrated into the supplied optical cable.
For convenience, it is recommended that at least the rooftop portion of the
heating installation (cabling and connections) be made so that if heating is
required, only the indoor power connection needs to be made.
Features
Table 1: TereScope 1000P Features
Characteristic
Model
TS1000/P/DST
Link Length (max)
260 m (842 ft) at 30 dB/km
(Link Length =lengths of two fiberoptic cables +
distance between the two TereScope 1000Ps.)
Receive (at Switch) Fiber
Core/Cladding Diameters
200/230 µm
Beam Divergence
2 mrad
Fiber-coupled power
7 dBm
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Advantages
•
MTBF – over 10 years
•
Secure transmission
•
No electric power needed
•
No need for electrical grounding or lightning protection
•
No opto-electronic transducers needed
•
No EMI/RFI either to or from the TereScope 1000P.
•
Immediate deployment
•
Temporary or permanent installation
•
Installable in harsh terrain and over obstacles (rivers, highways, etc.)
•
License-free
Applications
•
Point-to-Point and Mesh network topologies
•
Last-mile connectivity
•
Cellular network
•
LAN/WAN environments
•
Fiber backup
•
Disaster recovery backup
Figure 1 shows a typical application of the TereScope 1000P.
Figure 1: Typical Application of TereScope 1000P
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Layout
Alignment Telescope Lens
Receive Lens
Transmit Lens
Support Bracket
Base
Figure 2: Front View of TereScope 1000P
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Fiber ST Connector for
Output to Switch
Alignment Telescope
Fiber ST Connector for
Input from Switch
Loop for extracting
Heater Connector
Fiber Strain Relief
Coarse Alignment Screws
Base
Fine Alignment Screws
Figure 3: Rear View of TereScope 1000P
Pre-Installation
General
Site survey is key for finding a suitable geographical area for an optical wireless
link. A good site survey, which covers all aspects of the installation requirements,
is a pre-requisite for satisfactory link installation and operation. Accordingly, it is
important:
• To determine the optimal geographical location for the link elements.
• That customers recognize their responsibilities prior to installation.
On completion of the link design, the Site Survey Form (shown in Appendix C:
Site Survey Form) should be filled out to assure complete coverage of all
installation aspects.
Tools & Equipment
The following equipment are useful in performing a successful and accurate site
survey:
•
Rangefinder binoculars
•
Digital camera
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ML47957, Rev. 02
•
Compass
•
GPS receiver
•
3 m tape measure.
•
Site Survey Form (shown in Appendix C: Site Survey Form)
October 2005
Site Survey Procedure
Site Suitability
1. Try to avoid East-West directions for links because even if 0.5º of the sun disk
overlaps the receiver telescope, errors may occur on a few days in a year for a
few minutes each day.
2. Choose buildings of medium height. Avoid tops of skyscrapers because of
their large sway. In suburban areas, you should choose the tallest building in
the area that is not too tall.
Line of Sight
1. Make sure that no obstacles cross the line of sight between the two
TereScope 1000Ps.
Examples of obstacles are: Growing trees, New buildings, Crane movement,
Bridges over which tall vehicles may pass, Birds nesting, Hot surfaces (such
as metal or black roofs), Exhaust gases or dust clouds, Smoke from chimneys.
2. Photograph the line of sight view from the rooftops.
Note
It is important to photograph the view containing the line of sight from the
elevation at which you are going to mount the TereScope 1000Ps. The
photograph can be used to: Recheck the location for details that may have
been overlooked during the survey, Show it for consultation, etc.
Range and Location
1. Referring to the data in Appendix A: Product Specification, under Operating
Range, choose and record the distance between the two TereScope 1000Ps
of the link. (You can use any of the following equipment to determine the
distance: rangefinder laser binoculars, GPS receiver, maps, etc.)
2. Noting that the length of fiberoptic cabling (interconnecting a
TereScope 1000P and Media Converter) should not exceed 50 m (164 ft),
choose and record the acceptable distance between each TereScope 1000P
and the Media Converter.
3. Noting that two TereScope 1000Ps are required per link,
4. Record the bearing to the opposite site by compass.
5. Record the number of links to be installed at the site.
6. Note whether additional sheltering is needed for the TereScope 1000Ps, for
e.g., against strong winds (120km/h or more) – see Appendix C: Site Survey
Form for details.
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Figure 4 and Figure 5 show optimal and acceptable locations for the
TereScope 1000P links. Notice that in both figures the TereScope 1000Ps are
mounted on rooftop edges and high enough above the ground.
TereScope 1 mounted at corner
of leading edge of structure.
Figure 4: Optimal Mounting
TereScope 1 at edge of roof so
that heat rising from roof
surface does not affect beam
Beam path more than
4.5 m (15 ft) above
surface to avoid traffic
and rising heat.
Figure 5: Acceptable Mounting
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Figure 6 shows an unrecommended TereScope 1000P link location because of
interference by IR. Notice that the TereScope 1000Ps are mounted far from the
rooftop edges or are too close to the ground.
Figure 7 shows an unacceptable TereScope 1000P link location because of
interference by passing vehicles. Notice that the TereScope 1000Ps are mounted
far from the rooftop edges and not high enough above the ground.
TereScope 1 not at edge of roof.
Less than 4.5 m (15 ft) between
beam path and heat-emitting
surface.
TereScope 1 not at edge of roof.
Beam path passes too close to ground. Heat rising causes
scintillation. Allow 4.5 m (15 ft) between ground and beam path.
Figure 6: Unrecommended Mounting
Figure 7: Unacceptable Mounting
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Mounting Environment & Stability
1. When deciding the mounting location, you should look on the rooftop for
vibration sources such as compressors, elevators, motors, and try to avoid
them.
2. Photograph the mounting location so as to select the best mounting
option.
Figure 8 shows mounting locations on a rooftop in descending order of
preference. Location 1 is the best; location 7 is the worst.
Figure 8: Mounting Locations in Order of Preference
3. Avoid surfaces with high reflectivity (e.g., white walls) behind the
TereScope 1000P so as to reduce interference with the optical signal.
4. Get customer approval for the exact positions where the
TereScope 1000Ps will be mounted. Using paint, mark these positions.
5. Note the height that each TereScope 1000P will be above or aside the
rooftop.
6. Identify the type/quality of the floor or wall and dimensions of the location
at which the TereScope 1000P is planned to be mounted.
7. For each TereScope 1000P, select one of the following mounting options2
and record it.
a. Parapet/Ledge Mounting (Figure 9) – This is a standard mounting
option that uses only the Plate (JMP).
2
For more information on these mounting options, refer to TereScope Installation Guide
(Publication No. 46366).
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b. Wall Mounting (Figure 10) – This is a standard mounting option
that uses the Plate (JMP) as well as the two Mounting Brackets
(JMBs).
c. Floor Pedestal Mounting (Figure 11) – This is a non-standard
mounting option that uses the Plate (JMP) as well as a Floor
Pedestal (e.g., M015C).
d. Wall Pedestal Mounting (Figure 12) – This is a non-standard
mounting option that uses the Plate (JMP) as well as a Wall
Pedestal (e.g., M054C).
e. Extended Wall Mounting (Figure 13) – This is a non-standard
mounting option that uses the Plate (JMP) as well as an Extended
Wall (e.g., M062C).
Figure 9: Parapet/Ledge Mounting
(using JMP only)
Figure 11: Floor Pedestal Mounting
(using JMP and M015C)
Figure 10: Wall Mounting
(using JMP and JMB)
Figure 12: Wall Pedestal Mounting
(using JMP and M054C)
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Figure 13: Extended Wall Mounting
(using JMP and M062C)
Transmitting through a Window
1. Determine the number of surfaces the beam transits or is reflected from,
the reflectivity of each surface, and condensation/precipitation collection
areas.
2. Use the data below to determine whether the light beam attenuation is
acceptable.
o 4% attenuation for each surface of light reflection.
o 15% attenuation for a double pane window.
o Attenuation due to tint in windowpane must be taken into
consideration in choosing the right TereScope 1000P model. (The
% attenuation depends on the tint and must be measured.)
3. Ensure that the angle of incidence3 of the beam striking the windowpane is
between 1º and 45º, preferably closer to 1º for greater beam penetration.
Note
On high buildings, for indoor window installation, the user should consider
that occasionally the window-cleaning elevator might block the link beam.
3
Angle which the light beam makes with the perpendicular to the windowpane.
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Figure 14 shows the arrangement for transmitting through a window.
Angle A is the angle of incidence
0
1 < A < 45
0
Figure 14: Arrangement for Transmitting through a Window
Routine Checks for Adjustments
Ensure that all rooftop sites are visited about two or three weeks prior to the
installation of the system. Make sure that no changes took place, which may
have a direct effect on the planned installation. Note the relevant changes and
make sure that timely adjustments are implemented in the system, to
accommodate these changes.
Ordering Equipment
Using the results of the survey, Appendix A: Product Specification, Appendix B:
Required Materials, and Appendix C: Site Survey Form, place orders for the
required MRV equipment and materials for the installation process.
Note
For insurance, it is advisable to order a longer fiberoptic cable than that
required by measurement.
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Installation
Fiberoptic Cable
General
MRV supplies a special fiberoptic cable for carrying optical data between the
Media Converter and the TereScope 1000P. The cable contains both a transmit
fiber and a receive fiber, each of different type. The TereScope 1000P has no
light source, detector, or amplifier inside. Therefore the cable plays a crucial role
in the link, as any loss in the cable translates into an equal loss in the received
signal strength.
The cable also contains two wires of gauge #20 AWG for connecting an optional
indoors heating power supply to a heating circuit in the outdoor unit.
The fiberoptic cable is an outdoor cable having two active fibers, two copper
wires of gauge #20 AWG, and one vacant sheath. The vacant sheath (together
with the active fibers) is needed to give the cable a cylindrical shape for
robustness. The cable has four connectors, two at each end, for interconnecting
a TereScope 1000P and Media Converter. Each end of the cable is protected
with a heat-shrink sleeve, part of which is shrunk around the cable end and the
portion around the connectors is left unshrunk for protection of the connectors
until they are safely connected. during the installation process. The cable is
available in various lengths. (The specification of the cable is given in Appendix
A: Product Specification.)
Handling
The fiberoptic cable should be handled with care since fiberoptic cables, in
general, are fragile. In particular,
•
Do not bend any part of the fiberoptic cable to a radius that is smaller than
the minimum permitted according to the manufacturer’s specification
(usually 210 mm or 8.25 in).
•
Do not apply physical stress that is greater than the maximum permitted
according to the manufacturer’s specification.
Caution!
Handle the fiberoptic cable and optical jumper ends with care even when
the connectors are protected.
Testing
General
Before laying the fiberoptic cables, the attenuation of each fiber should be
measured to determine if it is acceptable.
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Tools and Equipment
The following tools and equipment are required for testing the fiberoptic cables.
•
Fiberoptic cables.
•
Optical-power meter – shown in Figure 15. (If the readings are in dBm, the
difference between the input and output power gives the power
attenuation of the fiber in dB. )
•
850 nm light source4 – shown in Figure 15.
•
200/230 µm patch jumper fiberoptic cable5 (supplied by MRV6 on
customer order).
•
ST-ST adapter.
Figure 15: Light Source (left) and Optical-Power Meter (right) – Examples
Procedure
1. Connect the optical power meter to the light source with the patch cable.
Measure the power (in dBm). Disconnect the patch cable from the power
meter but leave its other end connected to the light source.
4
A Media Converter may be used.
5
A patch jumper cable is short, has connectors at both ends, and has negligible attenuation.
6
Instead, the following fiberoptic patch cables may be used: 50/125 µm or 62.5/125 µm.
23
TereScope 1000P
ML47957, Rev. 02
October 2005
2. Connect one end of the transmit fiber (yellow-sheathed) of the fiberoptic
cable under test to the patch cable with an ST-ST adapter. Connect its
other end to the optical power meter. Measure the power (in dBm).
3. Note the difference in the two measurements in Steps 1 and 2. This is the
attenuation of the fiber in dB. Stick a label with the attenuation value on
the fiber.
4. Repeat Steps 1 to 3 for the receive fiber (blue-sheathed) of the fiberoptic
cable.
5. For each fiber, the attenuation needs to be between 0.3 dB and 1 dB,
depending on the cable length.
6. Repeat Steps 1 to 5 for all fiberoptic cables.
Laying
It is strongly recommended to run the fiberoptic cable on roofs and in buildings in
cable canals (made of PVC) and not to pull them through ducts because of the
risk of applying too much frictional stress.
For each bend of the cable at a corner, use a short piece of flexible plastic
tubular duct (the same type supplied with the TereScope 1000P– see Figure 24).
The duct serves a double purpose. It ensures that no damaging stress will be
applied to the cable, and that the cable will be accessible for troubleshooting if
needed.
Preparation
Each end of each cable is fitted with two ST type optical connectors and
protected with a heat shrink sleeve. After laying the fiberoptic cable, carefully cut
off the unshrunk portion of the heat shrink sleeve with scissors or an exactor
knife to reveal the cable fibers and their attached connectors and also the two
copper wires.
Note
For TereScope 1000P do not bend the cable fiber to a radius
smaller than 60 mm (21/2 in).
Connection
The fiberoptic cables are connected after alignment is completed as described in
the section Connecting the TereScope 1000Ps, Media Converters. .
Mounting
This section shows how to mount the TereScope 1000P and accessories at a
site. For required materials, refer to Appendix B: Required Materials.
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TereScope 1000P
ML47957, Rev. 02
October 2005
Note
Avoid surfaces with high reflectivity (e.g., white walls) behind the
TereScope 1000P so as to reduce interference with the optical signal.
Mounting Accessories
Standard
The following standard mounting accessories are available for the
TereScope 1000P:
1. Mounting Plate (JMP) and Mounting Ring – shown in Figure 16. These are
used for mounting on a horizontal concrete surface, and are supplied with
all TereScope 1000Ps. The Mounting Plate is always required.
2. Mounting Brackets (JMBs) – shown in Figure 17. They are used for
mounting on a vertical surface, and are supplied on customer order.
Non-Standard
These are additional accessories required for special mounting options, and are
supplied on customer order. The mounting options are shown in Figure 11,
Figure 12, and Figure 13.
Mounting Procedure
1. If you are going to use an MRV standard mount, disassemble the
mounting plate and mounting ring (shown in Figure 16) – if they are joined
to each other – from the TereScope 1000P.
2. Secure the mounting plate to a parapet, ledge, or an MRV mounting
bracket, possibly with additional non-standard accessories. (When
mounting the TereScope 1000P on an MRV non-standard mount, do not
disassemble the mounting plate from the ring – just connect the mounting
plate with the supplied 4 x 8 mm bolts).
3. Place the TereScope 1000P on the mounting plate.
4. Secure the TereScope 1000P with bolts and washers, with the mounting
ring outside the bolts – see Figure 16. Do not tighten the bolts so that the
TereScope 1000P can be rotated. Tighten them only after coarse
alignment has been performed as described in the section Coarse
Alignment.
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TereScope 1000P
October 2005
ML47957, Rev. 02
Vertical Coarse Alignment
Screws
Mounting plate O-Ring
Horizontal Coarse
Alignment Screws
TS1000P base JMP
Figure 16: TereScope 1000P with Mounting Plate and O-Ring
dia. 8.00
4 places
4.0
260.0
0.0
0.0
45.0
45.0
93.0
93.0
170.0
170.0
247.0
260.0
13.0
34.0
a. JMB Left
247.0
260.0
0.0
dia. 8.00
4 places
13.0
34.0
b. JMB Right
Figure 17: Drawing of Vertical Mounting Brackets (JMBs)
Special Mounting Techniques
This section describes two widely used mounting options:
•
Mounting on the Floor
•
Mounting on a Fragile/Crumbly Wall
26
375.0
321.0
244.0
167.0
90.0
13.0
13.0
0.0 0.0
90.0
167.0
244.0
321.0
375.0
13.0
0.0
0.0 0.0
13.0
34.0
34.0
4.0
260.0
TereScope 1000P
ML47957, Rev. 02
October 2005
Mounting on the Floor
On roofs with a metallic parapet or without a parapet, drilling holes in the roof
floor is not recommended. In such cases, the only place where the installation is
practicable or authorized is on the floor.
The technique for mounting on such roof floors – illustrated in Figure 18 – is as
follows:
1. Prepare a small concrete slab (60 cm x 60 cm x 15 cm). (This slab will be
used to stabilize the pedestal7 for the TereScope 1000P.)
2. When the slab solidifies, secure the floor pedestal with screws passed
through holes drilled into the slab.
3. Remove any intervening extraneous material, such as asphalt, present
between the slab/tower base and the floor. After mounting is completed,
restore the roof waterproofing around the slab with appropriate sealing
material.
Floor pedestal: MO15C,
M059C, M057C, M055C,
M058C, M050C
Concrete Slab
Roof Floor
Figure 18: Mounting on a Concrete Slab
Mounting on a Fragile/Crumbly Wall
At sites where installation on fragile (pre-fab) or crumbly (old or red brick) walls is
unavoidable, the best way to securely fix the vertical mounting brackets is to use a
metallic clamping plate8. The clamping plate provides greater rigidity and stability.
The technique for mounting on such walls is illustrated in Figure 19.
7
The pedestal is supplied by MRV  on customer order.
8
The metallic clamping plate is supplied by MRV  on customer order.
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TereScope 1000P
October 2005
ML47957, Rev. 02
Fragile Wall
Clamping Plate
Figure 19: Mounting on a Fragile Wall
Alignment
General
Point-to-point connections require face-to-face orientation of both transceiving
ends of the link. With wireless optical links, the beam spot should be positioned
symmetrically on the remote receiver, as accurately as possible.
Tools and Equipment
Note
The customer can order patch cables and high-output portable source from
MRV.
The following tools and equipment are required at each link end:
•
A communication device (mobile phone or walkie-talkie)
•
Optical-power meter, giving readings in milliwatts/microwatts or dBm. If no
power meter is available, a DVM can be connected to the 2-pin OPTICAL
POWER port of the MC102G/P media converter and the voltage readings
can be used for alignment.
•
Patch jumper fiberoptic cable 200/230 µm for the power meter.
Caution!
Cover the fiber output from view or turn off the light source until ready to
connect it to the link.
Procedure
The alignment procedure is done in two stages:
− Coarse Alignment
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TereScope 1000P
ML47957, Rev. 02
October 2005
− Fine Alignment
Coarse Alignment
1. Slightly loosen the Horizontal Motion Locking Bolts and the Vertical Motion
Locking Bolts (two on each support bracket) – see Figure 16.
2. To enable maximum flexibility during the fine alignment stage, rotate the
fine alignment screws (Figure 20) until the alignment bar is centered.
3. While looking (see note below) through the telescope, rotate and tilt the
TereScope 1000P to bring the telescope crosshairs on the telescope lens
of the opposite TereScope 1000P.
4. Tighten the four coarse alignment screws and four bolts by applying a
torque less than 20 Newton-meter.
Fine Alignment
General
The purpose of fine alignment is to position the center of the transmitted beam
spot on the center of the TereScope 1000P receiver – in both directions. This is
achieved by adjusting the horizontal and vertical motion screws (shown in Figure
20) until maximum power is received at the opposite TereScope 1000P.
Alignment
Bar
Fine Alignment Horizontal
Motion Screws with Locking
Nuts
Fine Alignment Vertical Motion
Screws with Locking Nuts
Figure 20: Fine Alignment Motion Screws – Rear View
Fine Alignment Vertical Motion Screws – Two screws. Used for fine rotation of
the TereScope 1000P in the vertical plane. Both screws are required to lock a
vertical position.
Fine Alignment Horizontal Motion Screws – Two screws. Used for fine rotation
of the TereScope 1000P in the horizontal plane. Both screws are required to lock
a horizontal position.
To use any fine alignment screw, its nut must first be released.
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TereScope 1000P
October 2005
ML47957, Rev. 02
Procedure
Note
Two installers are required for fine alignment, one at each TereScope
1000P site.
The fine alignment procedure is as follows:
1. Make certain the power meter is set for 850 nm wavelength.
2. At one TereScope 1000P (Site A), remove the flange and duct (shown in
Figure 24). Referring to Figure 21, do either one of the following:
a. Connect one end of the yellow-sheathed cable to the Media
Converter and the other end to the TereScope 1000P’s FROM
SWITCH connector, as shown in Figure 29.
3. At the other TereScope 1000P (Site B), remove the flange and duct.
Referring to Figure 21, use the patch cable (200/230 µm to interconnect
the optical power meter and the TO SWITCH connector.
TO SWITCH Connector
FROM SWITCH Connector
Figure 21: Connectors for Fiberoptic Cables
4. At Site A, turn the horizontal motion screws until the installer at Site B
reports maximum received power. (This assures that the beam spot is
positioned symmetrically in the left-right direction about the
TereScope1000P receiver located behind the telescope lens, as shown in
Figure 22.)
Close the screws lightly – do not tighten!
5. At Site A, turn the vertical motion screws until the installer at Site B reports
maximum received power. (This assures that the beam spot is now
positioned at the center of the TereScope1000P receiver located behind
the telescope lens, as shown in Figure 23. The received power should be
about the same as the expected power given in Table 2 of Appendix F:
Received Signal Power vs Distance. Table 2 shows expected power for
various distances.) Record the maximum received power in µW.
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TereScope 1000P
October 2005
ML47957, Rev. 02
Note
This power reading is the sum of both signal and background light.
On a sunny day, for long air links, the background light may add to the true signal
power. The problem is resolved in Steps 8 and 9.
6. Repeat the horizontal and then the vertical alignment to ensure maximum
reading.
7. Tighten all the fine alignment screws and locking nuts.
8. Disconnect or turn off theMedia converter, then measure and record the
background light power in dBm.
9. Subtract the background reading from the recorded maximum received
power in Step 5 to get the signal power. This signal power should be close
to the expected power given in Appendix F: Received Signal Power vs
Distance.
10. Repeat Steps 1 to 9 for the opposite direction.
V1
H1
H2
V2
Figure 22: Beam (circle) on Receiver (rectangle) after Horizontal Alignment
V1
H1
H2
V2
Figure 23: Final Beam after Horizontal and Vertical Alignment
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TereScope 1000P
ML47957, Rev. 02
October 2005
Connecting the TereScope 1000Ps, Media
Converters.
1. At one of the two TereScope 1000Ps of the link, release the flange and
duct (shown in Figure 24) by unscrewing the flange.
Figure 24: Flange and Fiberoptic Cable Duct
2. After cutting off the unshrunk portion of the sleeve on the fiberoptic cable
end, carefully slip the cable through the duct and flange.
3. To connect the heating circuit (recommended option):
a. Extract the green pluggable terminal block from the socket in the
TereScope 1000P as shown in Figure 25.
Figure 25: Extracting the Terminal Block by the Yellow Wire Loop
If the yellow wire loop is missing or slips when trying to extract it,
use a pair of pliers as shown in Figure 26.
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TereScope 1000P
ML47957, Rev. 02
October 2005
Figure 26: Extracting the Terminal Block by a Pair of Pliers
b. Remove and trash the yellow wire loop attached to the terminal
block.
c. Strip the two copper wires and, using a screwdriver, connect them
to the two prongs of the terminal block.
d. Plug the terminal block back into the green socket in the
TereScope 1000P as shown in Figure 27.
Fiber Strain Relief
Figure 27: Insertion of the Terminal Block and Fiber Strain Relief
4. Connect the transmit fiber (yellow-sheathed) to the FROM SWITCH
connector, and the receive fiber (blue-sheathed) to the TO SWITCH
connector.
5. Remove the screw on the Fiber Strain Relief, open the flange, pass the
yellow and blue fibers through the Fiber Strain Relief, verify that the
connectors are coupled well, screw the flange back into place, making
sure it is firmly tightened, and tighten the removed screw.
6. Repeat Steps 1 to 5 for the other TereScope 1000P of the link.
7. connect the TereScope 1000Ps to switches via MRV MC102/G/SX/PAL
as shown in Figure 29.
8. If the heater is to be used, do the following at the indoor end of the cable:
a. Strip the two copper wires of the cable.
b. Strip the two copper wires of the output of the MRV heater power
supply (15 V, cat no. 1406700).
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TereScope 1000P
ML47957, Rev. 02
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c. Connect each power supply output wire to one cable wire using the
wire-nuts provided as shown in Figure 28.
Figure 28: Connection of the Wires from the TereScope 1000P to the
Heating Power Supply Connector
d. Plug the power supply into a wall socket using a standard IEC
320/C8 (shaver and stereo style) cord (not supplied by MRV).
Figure 29: Interconnection of TereScope 1000P, Media Converters, & Switches
34
TereScope 1000P
ML47957, Rev. 02
October 2005
Link Test
In the network in Figure 29, perform ping test for the remote switch to check if
link connectivity is OK.
Installation Log
In the Installation Log, record all the information about the installation For the
MC102/G/SX/PAL, the received power reading appears at the top left hand
corner on the front panel as 10 green Led’s bar graph. This information will be a
valuable reference for future maintenance and troubleshooting.
35
TereScope 1000P
ML47957, Rev. 02
October 2005
Troubleshooting
Since the TereScope 1000P is a passive device, it is unaffected by EMI, RFI,
power cuts, etc. Only violent physical disturbances or faulty optical power input
from the media conveter may cause the device to malfunction.
The following procedure shows how to troubleshoot a faulty optical power input.
Follow the steps in the order given until the problem is resolved. If the problem
persists, consult your MRV representative.
1. Ensure that the fiberoptic cable at the media converter is properly
connected.
2. . On the MC102/G/SX/PAL, check the reading on its front panel.
If the power is too low, first make sure that there are no interferences with
the air link (e.g., fog, smoke, dust, etc.).
3. Ensure that the fiberoptic cable at the TereScope 1000P is properly
connected.
4. Ensure that the fiberoptic cable (connectors, etc.) is not physically
damaged.
5. Ensure that there are no unnecessary bends or pressure on the optical
cable anywhere in the building or on the roof.
6. Ensure that there is no physical damage to the TereScope 1000P.
7. Ensure that the optical link attenuation is less than the power budget of
the media converter.
8. Repeat Steps 1 to 7, above, for the other TereScope 1000P of the link.
36
TereScope 1000P
October 2005
ML47957, Rev. 02
Appendix A: Product Specification
Protocol
Giga Bit Ethernet
Link Beam
Transmitted Beam Divergence
2 milliradians
Receiver Aperture Diameter
50 mm
Receiver Field-of-View
2.4 milliradians
Operating Range
Attenuation
Weather Condition
Maximum Range
30dB/km
Blizzard, cloudburst
260 m
60dB/km
Light to Moderate fog
180 m
Fiberoptic Cable
Maximum length
Up to 50 meters at each link end
Attenuation
10 dB/km
Transmit Fiber:
Sheath
Core/Cladding Diameters:
Yellow
Receive Fiber
Sheath
Core/Cladding Diameters:
Blue
Copper Wires
2 (one black the other red), #20 AWG
Fiber Bend Radius (min. permitted)
60 mm (21/2 in)
Cable Bend Radius (min. permitted)
210 mm (8.25 in)
Fiber Connectors
ST 
100/140 µm
200/230 µm
Heating System
Power supply
Use only MRV Cat. No. 1406700
15 V @ 1.0 or 1.2 A
Class II double insulated (3000 VAC)
Class 2 power limited output
UL, cUL, TUV approved 1950 or 60950
Power supply input connector
IEC 320/C8 (2 prong shaver type)
Environmental
Temperature
Operating:
-40to +60 °C (-40 to 140°F)
Storage:
-40 to +60 °C (-40 to 140 °F)
Humidity (non-condensing)
Less than 90%
Housing
Weatherproof (IP-65)
37
TereScope 1000P
ML47957, Rev. 02
October 2005
Physical
Dimensions (W x H x D)
410x 244 x 325mm 3
Weight (including mounting accessories)
5.5 kg (11 lb)
Torque applicable to Coarse Alignment
Screws (max)
20 Newton-meter
Standards Compliance
Media Access
IEEE 802.3z CSMA/CD
Safety
Designed to comply with UL-1950; CSA 22.2 No.
950; FCC Part 15, Class B; CE-89/336/EEC,
73/23/EEC, IEC 1M Laser safety, IP-66
Part Numbers
Model 1000P
TS1G/B/BDL/25/A
38
TereScope 1000P
ML47957, Rev. 02
October 2005
Appendix B: Required Materials
Optic Module
The optic modules are designed to send and receive optical data through the
link. The following type of -optic module is available:
Media Converter
The media converter is designed to connect between the TereScope 1000P
format and fiberoptic 1000Base-FX format. For more information, please
refer to the manuals of the media converter and your network equipment.
Installation Tools
•
Electric drill with impact action for masonry, reversible motion, speed
control, and a 0-13 mm adjustment chuck.
•
Concrete carbide drill bits: 6 mm, 12 mm, and long (30 cm) 12 mm for
penetrating concrete walls.
•
Power screwdriver.
•
Threading equipment.
•
Toolbox containing: “Hex driver (Allen) set; open-ended wrench from
6 mm to 17 mm; hammer (200 g); regular pliers; long-nose pliers; cutter;
flat-tip screwdrivers, Philips screwdrivers; exactor knife; Socket wrench for
8 mm, 10 mm, 11 mm, 12 mm, 14 mm, ½-inch, etc.
Equipment for Fiber Test and Link Alignment
•
Fiberoptic power meter for 850 nm (e.g. of EXFO or ACTERNA).
•
Fiberoptic multi-mode light source of 850 nm wavelength for multimode
fibers (e.g. of EXFO or ACTERNA).
•
Visual fault locator.
•
Fiberoptic jumper – 1 m, 200/230 µm core/cladding diameters
•
39
TereScope 1000P
October 2005
ML47957, Rev. 02
Appendix C: Site Survey Form
TereScope®
LINK SITE SURVEY FORM
City
Date
Street
Address
Company Name
NOTES
Line of Sight
√
Check Path for:
________/________/2005
Mounting Environment & Stability
Vibration Sources
Trees
Compressors or Motors
Growing trees
Elevators
Birds nesting
Mounting area, wall type
Power line movement
Expected minimum and maximum
temperatures
Local atmospheric disturbances
Microwave dishes
Hot surfaces
Electromagnetic interference
sources
Pedestrian or vehicle traffic
Antennas
Concrete/ red brick/ block/
Marble
Other_________
Exhaust or dust clouds
Other electronic equipment
Exhaust vents
Additional shelter requirements
Photo taken of underlying terrain
(Photo of area below line of sight)
Photo taken of mounting location
Photo taken of “line-of-sight”
Mount Placement (Best available mount placement on
building)
Photo taken of rooftop
Mounting Brackets Part # s
M001, M015C, M022C, M050C
M051C, M053C, M054C, M055C
M056C, M057C, M058C, M059C
M062C, M063C, M064C, PCL3
PCL4, PCL5, PCL6, JMP
Transmission through a Window
Elevation angle
______º
Number of window surfaces
Mounting adaptor needed
Reflective coating on window
Dimensions for adaptor
Precipitation collection areas
Power
Beam angle to window
Power Source
Main and/or UPS
Range & Location Information
Voltage & Frequency (AC)
110Vac/60Hz or 220 Vac/50Hz
Distance between sites (m)
Voltage (DC)
24 Vdc, 48 Vdc, other_________
Method used to measure distance:
(GPS, laser binoculars, maps, other)
TereScope Lightning Rod
(Recommended optional
accessory)
Yes / No
Number of links to be installed at the site
Cable Length for TS 1 PAL
25 m, 50 mother_______
Bearing to the receiving site (as measured
with compass)
E__________ °
Data Interface
W__________ °
Data Rate (Mbps)
Cabinets for Routers & Switches (if applicable)
3
Host Network Equipment
Fiber Wavelength
19" rack mount space (in U, 1U = 1 /4 in)
1Gbps, 622 Mbps, 155 Mbps, 100
Mbps, 34 Mbps, 10 Mbps, E1, T1,
4E1, other____
850 nm, 1310 nm, MM, SM
Large cabinet
Yes/No
Optical Connector
SC/PC, ST/PC, other_________
Small cabinet
Yes/No
Other connectors
RJ45, RJ48, BNC, other_______
TereScope Model Required____________________
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TereScope 1000P
ML47957, Rev. 02
October 2005
Appendix D: Cleaning Optical
Connectors
General
Intrusions (e.g., dust, grease, etc.) at the interface of two optical fibers, such as
at a pair of coupled connectors, attenuate the signal through the fiber.
Consequently, optical connectors must be cleaned before they are coupled with
other connectors.
Tools and Equipment
Following are tools and equipment required for cleaning connectors.
•
Dust caps
Caps for protecting the connector from intrusions. A cap is usually made
from flexible plastic. When placing a cap over a connector, avoid pressing
it against the fiber ferula surface in the connector so as to prevent
contamination.
•
Isopropyl alcohol
Solvent for contaminants.
•
Tissues
Soft multi-layered fabric made from non-recycled cellulose.
Procedure
The procedure for cleaning connectors is as follows:
1. If no stains are present, using a new clean dry tissue, gently rub, in small
circular motions, the exposed fiber surface and surrounding area in the
connector to remove dust.
2. If stains are present,
A. Moisten a new clean dry tissue with isopropyl alcohol and gently
rub, in small circular motions, the exposed fiber surface and
surrounding area in the connector to remove the stains.
B. Using a new clean dry tissue, gently rub, in small circular motions,
the exposed fiber surface and surrounding area in the connector to
remove the dissolved stains and excess isopropyl alcohol.
C. If a connector is not to be coupled with another immediately, cover
it with a dust cap.
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TereScope 1000P
ML47957, Rev. 02
October 2005
Appendix E: Installation Log
E.1. Client/Dealer Information
Customer
Dealer
Company Name
Address
City
Country
Contact Person
Tel
Fax
E-mail
E.2. Application Information
Type of network
T1 ,
E1 ,
Ethernet ,
Ethernet , FDDI ,
ATM ,
Product
Evaluated distance by customer
Address of installation at Site A
Address of installation at Site B
E.3. Area Sketch
E.4. Installation
Done by
Customer representative
Date
42
Gbs ETH
Fast
Other (Specify)
TereScope 1000P
October 2005
ML47957, Rev. 02
Site A
Site B
Site A
Site B
System model
Serial number
Location: (Should be the
same as by site survey, if
not provide details)
Accessories: (Should be the
same as by site survey, if
not provide details)
Received
Signal
Strength
Total
Received
Power
Background
Light Power
Signal
Power
Telescope calibration :
if cannot , sketch the
telescope view
BER test
BER equipment type
Loopback location
Error type (random, burst)
Brief interruption test
E.5. System failure
Visit made by
Customer representative
Date
Sketch of telescope view
43
TereScope 1000P
Received
Signal
Strength
October 2005
ML47957, Rev. 02
Total Received
Power
Background
Light Power
Signal Power
Failure detail
Action items
Visit made by
Customer representative
Date
Site A
Site B
Sketch of telescope view
Digital readout
Failure detail
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TereScope 1000P
ML47957, Rev. 02
Action items
45
October 2005
TereScope 1000P
October 2005
ML47957, Rev. 02
Appendix F: Received Signal Power
vs Distance
Table 2, below, is provided to give the installer an estimate of the expected
received signal power after fine alignment. The values given apply when a Media
Converter transceiver module is used as a light source and the patch cables are
as specified in the section Tools and Equipment under Alignment. The Bar LEDs
appear just above the marking OPTICAL POWER as shown in Figure 31, page 49.
The RSSI voltage level can be measured by connecting a digital voltmeter to the
port marked POWER as shown in Figure 31, page 49.
Table 2: Air Link Distance vs Minimum Required Received Signal Power/Voltage
No.
Air Link
Distance
(meters)
Number of
Bar LEDs
ON
RSSI
(Vdc)
Optical Rx
Receiver power
(dBm) using
850 nm
Wavelength
1
1
0.13
-35.3
2
2
0.18
-33.1
3
3
0.26
-31.0
4
600
4
0.37
-28.7
5
465
5
0.52
-26.5
6
350
6
0.73
-24.1
7
260
7
1.05
-21.6
8
190
8
1.5
-18.9
9
140
9
2.1
-16.0
10
100
10
3.0
-13.2
11
88
10
3.5
-12.0
12
78
10
3.7
-11.0
13
70
10
3.9
-10.0
14
62
10
4.0
-9.0
15
55
10
4.2
-8.0
16
50
10
1.8 with
attenuator
(4.3 without)
-17.0 with
attenuator
(-7 without)
Note
Due to Rx overload
at this distance, use
supplied 10 dB
attenuator
17
44
10
2.1 with
attenuator
(4.4 without)
-16.0 with
attenuator
(-6 without)
Due to Rx overload
at this distance, use
supplied 10 dB
attenuator
18
39
10
2.5 with
attenuator
(4.5 without)
-15.0 with
attenuator
(-5 without)
Due to Rx overload
at this distance, use
supplied 10 dB
attenuator
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TereScope 1000P
October 2005
ML47957, Rev. 02
Figure 30 shows the relation between the air link distance (in meters) and
expected received power (in dBm) graphically. Note that at distances of 60 m
and less, optical power at the receiver is too high (above the saturation level).
Accordingly, for such small distances, an optical power attenuator must be
coupled to the TX (transmitter) port.
Received Signal
Power
Minimum Required Signal Power
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
50
100
150
200
Air Link Distance (m)
Air Link Distance (m)
Figure 30: Air Link Distance vs Expected Received Signal Power
47
250
TereScope 1000P
ML47957, Rev. 02
October 2005
Appendix G: Cabling
Cabling
The yellow-sheathed fiber of an MRV special cable is connected to a TX
connector. The blue-sheathed fiber of an MRV special cable is connected to a
RX connector. The two copper wires are for connection of the optional MRV
power supply #1406700 for heating the outdoor TereScope 1000P. The polarity
of the wires may be ignored when connecting the wires.
48
TereScope 1000P
ML47957, Rev. 02
October 2005
Appendix H: MC102/G/SX/PAL
General
The MC102/G/SXPAL is used to connect a TereScope 1000P link to any Gigabit
switch with special fiberoptic cables provided by MRV . These fiberoptic cables
are described in Appendix A: Product Specification.
The MC102/G/SX/PAL supports ordinary, VLAN, MPLS, and jumbo frames.
Models
Model MC102-G/SX/PAL2 is used with TereScope 1000P powered by 100240Vac.
Model MC102-G/SX/PAL3 is used with TereScope 1000P powered by 24-60Vdc
Layout
Front
Figure 31: MC102G/P Layout
1000Base-SX Port P1
Protocol
1000Base-SX/Full-Duplex
Connector Type
SC
Operating Wavelength
850 nm
49
TereScope 1000P
October 2005
ML47957, Rev. 02
1000Base-SX Port P2
Protocol
1000Base-SX/Full-Duplex
Connector Type
ST
Operating Wavelength
850 nm
Transmitter Power
TS1000P: 7 dBm
Receiver Sensitivity
-29 dBm
Optical Power
LEDs
The 10 LEDs marked OPTICAL POWER qualitatively indicate the power level of the
received optical signal. 4 LEDs in the ON state indicate that the power level is
just acceptable (above the receiver sensitivity level). All 10 LEDs in the ON state
indicate that the power level may be too high (in the saturation range).
Port
The 2-pin optical power port marked OPTICAL POWER can be used to get a
qualitative indication of the received optical signal power level if no power meter
is available. This can be done by connecting a DVM to the port and using the
voltage readings as a guide in alignment.
Table 3: Front Panel LEDs
LED
Status
P1 L
P2 L
LED graph Bar
ON
OFF
ON
OFF
ON
OFF
Significance
Port P 1 link OK.
Port P 1 link absent or faulty.
Port P 2 link OK.
Port P 2 link absent or faulty.
TS link is O.K
TS link is absent of faulty
Rear
Line/Mains Power Port
3-prong receptacle with universal power supply for 100-240Vac and 60/50Hz line
(mains) power input, or 24-60Vdc
Ambient Temperature
The required ambient temperature ranges for the MC102/P are as follows:
Operating:
Storage:
0 to 40 °C
-40 to +70 °C
50
TereScope 1000P
ML47957, Rev. 02
October 2005
Mounting
The MC102G/P is to be mounted on a wall or desktop (flat, stable,
non-conductive static-free surface).
Cabling
Fiberoptic
The yellow-sheathed fiber of a special MRV cable is connected to the TX
connector and the blue-sheathed fiber is connected to the RX connector. The two
copper wires are for connection of the optional MRV power supply #1406700 for
heating the outdoor TereScope 1000P. The polarity of the wires may be ignored
when connecting the wires.
Switch Side
The MC102G/P’s P1 fiber side port is connected using a standard MM 62.5/125µ
optical patch cords
Connector: SC
51
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