November 2004
Prisma® DS3/E3/STS-1 Media Converter Module Installation
Instructions
Overview
Purpose
These installation instructions provide product information and instructions for
installing the Prisma® DS3/E3/STS-1 Media Converter module.
Introduction
The Prisma DS3/E3/STS-1 module is an SNMP-manageable module that converts
thin coax signals to single-mode or multi-mode fiber signals at a data rate of 45 Mbps
(DS3), 34 Mbps (E3), or 52 Mbps (STS-1).
Qualified Personnel
Only appropriately qualified and trained personnel should install, operate, maintain,
and service this product.
WARNING:
Allow only qualified personnel to install, operate, maintain, and service this
product. Otherwise, personal injury or equipment damage may occur.
Continued on next page
Overview, Continued
In These Installation Instructions
These installation instructions contain the following topics.
Topic
2
See Page
Important Safety Instructions
3
Laser Safety
5
Product Description
8
Configuration Instructions
9
Choosing Your Settings
12
Module Installation Instructions
14
Fiber Optic Cleaning Guidelines
16
Module LED Indicators
18
Troubleshooting
20
For Information
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Prisma DS3/E3/STS-1 Media Converter Module Installation Instructions
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Important Safety Instructions
Read and Retain Instructions
Carefully read all safety and operating instructions before operating this equipment,
and retain them for future reference.
Follow Instructions and Heed Warnings
Follow all operating and use instructions. Pay attention to all warnings and cautions
in the operating instructions, as well as those that are affixed to this equipment.
Electrostatic Discharge
Electrostatic discharge (ESD) results from the static electricity buildup on the human
body and other objects. This static discharge can degrade components and cause
failures.
Take the following precautions against electrostatic discharge:
• Use an anti-static bench mat and a wrist strap or ankle strap designed to safely
ground ESD potentials through a resistive element.
• Keep components in their anti-static packaging until installed.
• Avoid touching electronic components when installing a module.
EMC
Where this equipment is subject to USA FCC and/or Industry Canada rules, the
following statements apply:
FCC Statement for Class A Equipment
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when this 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 instruction document, may cause harmful
interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case users will be required to
correct the interference at their own expense.
Continued on next page
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Important Safety Instructions, Continued
Industry Canada – Industrie Canadienne Statement
This apparatus complies with Canadian ICES-003.
Cet appareil est confome à la norme NMB-003 du Canada.
CENELEC/CISPR Statement with Respect to Class A Information Technology Equipment
This is a Class A equipment. In a domestic environment this equipment may cause
radio interference in which case the user may be required to take adequate measures.
Modifications
This equipment has been designed and tested to comply with applicable safety, laser
safety, and EMC regulations, codes, and standards to ensure safe operation in its
intended environment.
Do not make modifications to this equipment. Any changes or modifications could
void the user’s authority to operate this equipment.
Modifications have the potential to degrade the level of protection built into this
equipment, putting people and property at risk of injury or damage. Those persons
making any modifications expose themselves to the penalties arising from proven
non-compliance with regulatory requirements and to civil litigation for
compensation in respect of consequential damages or injury.
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Laser Safety
Introduction
This equipment contains an infrared laser that transmits intensity-modulated light
and emits invisible radiation.
Warning: Radiation
WARNINGS:
• Avoid personal injury! Use of controls, adjustments, or performance of
procedures other than those specified herein may result in hazardous
radiation exposure.
• Avoid personal injury! The laser light source on this equipment emits
invisible laser radiation. Avoid direct exposure to the laser light source.
• Do not apply power to this equipment if the fiber is unmated or unterminated.
• Do not stare into an unmated fiber or at any mirror-like surface that could reflect
light that is emitted from an unterminated fiber.
• Do not view an activated fiber with optical instruments (e.g., eye loupes,
magnifiers, microscopes).
• Use safety-approved optical fiber cable to maintain compliance with applicable
laser safety requirements.
Warning: Fiber Optic Cables
WARNING:
Avoid personal injury! Qualified service personnel may only perform the
procedures in this document. Wear safety glasses and use extreme caution when
handling fiber optic cables, particularly during splicing or terminating
operations. The thin glass fiber core at the center of the cable is fragile when
exposed by the removal of cladding and buffer material. It easily fragments into
glass splinters. Using tweezers, place splinters immediately in a sealed waste
container and dispose of them safely in accordance with local regulations.
Continued on next page
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Laser Safety, Continued
Safe Operation For Software Controlling Optical Transmission Equipment
If this document discusses software, the software described is used to monitor
and/or control Scientific-Atlanta and other vendors’ electrical and optical equipment
designed to transmit video, voice, or data signals. Certain safety precautions should
be observed when operating equipment of this nature.
For equipment specific safety requirements, refer to the appropriate section of the
equipment documentation.
For safe operation of this software, refer to the following warnings.
WARNINGS:
• Ensure that all optical connections are complete or terminated before using
this equipment to remotely control a laser device. An optical or laser device
can pose a hazard to remotely located personnel when operated without their
knowledge.
• Allow only personnel trained in laser safety to operate this software.
Otherwise, injuries to personnel may occur.
• Restrict access of this software to authorized personnel only.
• Install this software in equipment that is located in a restricted access area.
Laser Safety Information
This laser based multi-mode transceiver is an IEC 60825-1 Amend. 2 Class 1 laser
product. It complies with FDA performance standards (21 CFR 1040.10 and 1040.11)
for laser products except for deviations pursuant to Laser Notice No. 50, dated July
26, 2001.
Note: All adjustments have been made at the factory prior to shipment of the
module. No maintenance or alteration of this device is required. No adjustments or
controls provided.
Class 1 Laser Product
Avoid possible exposure to hazardous levels of invisible laser radiation; do not view
laser aperture.
Continued on next page
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Laser Safety, Continued
Product Specific Laser Information
The following illustration displays the location of the laser apertures on this
module’s front panel.
Laser
Aperture
The following label is on the module.
Class 1 Laser product, Luokan 1 Laserlaite,
Laser Klasse 1, Appareil A'Laser de Classe 1
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Product Description
Prisma DS3/E3/STS-1 Module
Each Prisma DS3/E3/STS-1, BNC/FX includes one pair of BNC connectors and one
pair of ST or SC fiber optic connectors and requires one slot in an SNMP-manageable
MediaCenter™ chassis or an unmanaged MediaCPE™ chassis.
Also available for single-strand fiber, the Prisma DS3/E3/STS-1, TP/SSFX module
includes pair of BNC connectors and one SC fiber optic connector. Prisma
DS3/E3/STS-1, TP/SSFX modules allow two wavelengths to share one fiber strand
— Full-Duplex data travels on different wavelengths (1310 nm and 1550 nm) —
doubling the capacity of installed fiber.
Note: In order to function correctly, you must have a Prisma DS3/E3/STS-1 module
at BOTH ends of the conversion. The data transmitted on the fiber ports can only be
received and interpreted by the receive fiber of another Prisma DS3/E3/STS-1
module.
Prisma DS3/E3/STS-1 Module Illustration
Refer to the following illustration for a view of the module front panel.
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Configuration Instructions
Introduction
The Prisma DS3/E3/STS-1 module can be configured for various features (see DIP
Switch Settings later in this document) that help improve the performance and
reliability for your requirements. The following instructions are for both managed
and unmanaged modules.
Managed Modules
To manage Prisma DS3/E3/STS-1 modules, an SNMP agent must be present i.e., the
MediaCenter chassis with embedded management; MediaCPE chassis require an
SNMP-management module. When using Prisma DS3/E3/STS-1 modules in a
managed environment, manually configure the features that you cannot configure
via management software prior to installation of the module. (See Choosing Your
Settings and DIP Switch Settings later in this document for configuration
instructions/description of the functions). After completing necessary preinstallation settings, install the Prisma DS3/E3/STS-1 module (see Module
Installation Instructions later in this document), and configure additional features
via the software.
The features that are configurable via management software include: Loopback
Selection, FiberAlert, Transmit Data Source, Jitter Attenuation, and Line Buildout.
Within the PrismaView™ software for media conversion, these settings are
configured in the Module Detail section of the main viewing screen, under the
picture of the module. Refer to the help file for more information.
Note: Management software overrides any hardware settings (e.g., jumper, switch,
etc.), so you MUST configure a module that will be managed via the software. Until
a module installed in a managed chassis is configured via the software, the module
(and its LEDs) may not work properly.
Important: When testing, it is recommended that you test your modules first in an
unmanaged environment. To do this, turn the SNMP management switch to OFF on
a MediaCenter chassis, or remove the management module from a MediaCenter
chassis. Follow the unmanaged configuration instructions, then install the module,
connect the cables, and test the LEDs. When finished, reactivate management and
configure the unit via the software.
Continued on next page
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Configuration Instructions, Continued
Unmanaged Modules
Before installing, an unmanaged Prisma DS3/E3/STS-1 module can be configured
for its selectable features via DIP switches located at position S1 on the PCB.
Note: S2 is factory configured — DO NOT CHANGE.
DIP Switch Location
Refer to the following diagram for DIP switch location.
Continued on next page
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Configuration Instructions, Continued
DIP Switch Settings
Refer to the following tables for DIP switch S1 settings.
Function
Loopback Enable *
Loopback Type *
Jitter Attenuation *
FiberAlert *
Line Buildout *
Transmit Data Source *
DS3/E3/STS-1 Selection
Remote Management
Switch Settings
Result
1: ON
Loopback functionality Enabled
1: OFF
Loopback functionality Disabled (D)
2: ON
Fiber
2: OFF
Coax (D)
3: ON
Place Jitter Attenuator on XMT Side (D)
3: OFF
Place Jitter Attenuator on RCV Side
4: ON
FiberAlert Enabled
4: OFF
FiberAlert Disabled (D)
5: ON
> 255 ft. (D)
5: OFF
1 to 255 ft.
6: ON
7: ON
Standard Data (D)
6: OFF
7: ON
Transmit Unframed All Ones
6: ON
7: OFF
Transmit Alternating Ones and Zeros
6: OFF
7: OFF
Transmit Pseudorandom Bit Sequence
8: ON
9: OFF
DS3 Selected (D)
8: OFF
9: ON
E3 Selected
8: ON
9: ON
STS-1 Selected
10: ON
Remote Management Enabled
10: OFF
Remote Management Disabled (D)
* Configurable via SNMP
(D) = Default Setting
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Choosing Your Settings
Introduction
To ensure that Prisma DS3/E3/STS-1 modules functions properly, several preinstallation decisions must be made. Knowledge of the distance to the main office
and the troubleshooting capabilities desired must be known in order for installation
to be successful.
Loopback Selection
This is another diagnostic tool that enables the user to test the integrity of the line by
allowing the data to be looped back. The loopback setting can be either Fiber
Loopback or Coax Loopback.
Jitter Attenuator Select
The user selects Jitter Attenuation on the coax transmit or receive side. This
decreases jitter in the data stream that increases data reliability. The jitter attenuator
is always enabled.
FiberAlert
FiberAlert minimizes the problems associated with the loss of one strand of fiber. If
a strand is unavailable, the Prisma DS3/E3/STS-1 module at the receiver end notes
the loss of link. The device will then stop transmitting data and the link signal until
a signal or link pulse is received. The result is that the NO LNK LED on BOTH sides
of the fiber connection will go on indicating a fault somewhere in the fiber loop.
Enable FiberAlert on the remote side of your conversion. Using FiberAlert, a local
site administrator is notified of a fault and can quickly determine where a cable fault
is located.
Note: Enable FiberAlert on ONLY one side of a media conversion; enabling it on
both sides would keep both transmitters off indefinitely.
Transmit LIU Waveshape (Line Buildout)
This option controls the waveshape being output by the transmitter. This helps to
correct problems related to cabling (i.e., cross-talk, electromagnetic interference, etc.).
Improperly setting this switch causes signal degradation.
Transmit Data Source
This is a diagnostic tool that sends specific patterns of data on the coax part to
determine problems along the cable. The user can set the module to send either a
PRBS (pseudorandom bit sequence), an alternating ones and zeros (TAOZ), or an
unframed all ones (TUA1) code, depending on your diagnostic needs. The default is
with both switches in the ON position (standard data).
Continued on next page
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Choosing Your Settings, Continued
DS3/E3/STS-1 Selection
This feature selects the data rate at which the module operates, either DS3, E3, or
STS-1. The default is DS3 mode.
Remote Management
This mode allows for the configuration of a remote unit, facilitating easy testing of
the line integrity of the remote unit’s copper port. As Prisma DS3/E3/STS-1
modules are always deployed in pairs, if remote management is desired, the Remote
Management feature must be enabled on the REMOTE unit only. When Remote
Management is enabled, the local unit can configure all SNMP-configurable features
for both units. Refer to the Module LED Indicators later in this document for
functionality.
Note: When the Remote Management feature is enabled on the remote unit, the
remote unit’s chassis must have SNMP-management disabled (i.e., the SNMP switch
turned OFF on the MediaCenter chassis or no management module installed in a
MediaCPE chassis).
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Module Installation Instructions
Electrostatic Discharge Precautions
Electrostatic discharge (ESD) can cause damage to the plug-in Media Converter
modules that install into the chassis. Always observe the following precautions
when installing or handling an add-in module or any board assembly.
1.
Do not remove the module from its protective packaging until you are ready
to install it.
2.
Wear an ESD wrist grounding strap before handling any module or
component. If you do not have a wrist strap, maintain grounded contact with
the system unit throughout any procedure requiring ESD protection.
WARNING:
Integrated circuits and fiber optic components are extremely susceptible
to electrostatic discharge damage. Do not handle these components
directly unless you are a qualified service technician and use tools and
techniques that conform to accepted industry practices.
3.
Hold boards by the edges only; do not touch the electronic components or
gold connectors.
4.
After removal, always place the boards on a grounded, static free surface,
ESD pad, or in a proper ESD bag. Do not slide the board over any surface.
Continued on next page
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Module Installation Instructions, Continued
Installing the Prisma DS3/E3/STS-1 Module
Follow these steps to install the Prisma DS3/E3/STS-1 module in a Prisma
MediaCenter chassis or Prisma MediaCPE chassis. Each module requires one slot in
the chassis.
1.
Turn the chassis power switch to OFF and disconnect the chassis from the
power source.
2.
Remove the blank bracket (if present) covering the slot where the module is to
be installed by removing the screws on the outside edges of the bracket.
3.
Slide the module into the chassis using the card guides until the module is
seated securely in the connector.
4.
Secure the module to the chassis by tightening the captive screw(s).
Note: Save any “blanks” removed during installation for future use should your
configuration requirements change.
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Fiber Optic Cleaning Guidelines
Cleaning Optical Connectors
Cleaning fiber-optic connectors can help prevent interconnect problems and
therefore aid system performance. When optical connectors are disconnected and
reconnected, the fiber surface can become dirty or scratched. The goal of cleaning
the fiber optic connectors is to remove all dust and contaminants without leaving
any residue.
Required Equipment
The following equipment is required to clean the ends of fiber-optic connectors.
• Optical-grade (91%) isopropyl alcohol
• Lint-free wipes
• Compressed air (also called “canned air”)
Tips for Optimal Fiber-Optic Connector Performance
Follow these guidelines to ensure optimal connector performance.
• Connect or disconnect optical connector performance.
• Always use compressed air before cleaning the fiber-optic connectors.
• Use end caps on connectors when they are not in use.
• Always use compressed air to clean the end caps.
• Use optical-grade isopropyl alcohol of at least 91% or greater. Anything less than
91% isopropyl may leave a film on the fiber surface, creating more problems.
• Do not contaminate your alcohol supply.
− Use a sprayer (a fountain pump is also adequate)
− Do not put used alcohol back into the main container
• Use only lint-free wipes. Never use “Kleenex-type” tissues.
• If you have any degraded signal problems, clean the fiber-optic connector.
Continued on next page
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Fiber Optic Cleaning Guidelines, Continued
Cleaning Optical Connectors
Follow these steps to clean an optical connector.
1.
Remove loose dirt or dust from the end of the connector by using compressed
air (canned air) to blow dirt off the fiber and the connector.
2.
Dampen a lint-free wipe with optical-grade isopropyl alcohol. If no wipes are
available, use ferrule cleaner, part number 468517.
3.
Clean the end of the connector using the lint-free wipe or ferrule cleaner.
4.
Inspect the end of the connector for obvious contamination.
5.
Mate the connector with an adapter or cover with an end cap.
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Module LED Indicators
Prisma DS3/E3/STS-1 Module Front Panel
The following illustration shows the Prisma DS3/E3/STS-1 module front panel.
LEDs Next to Coax (BNC) Port
The module front panel contains the following LEDs next to the coax (BNC) port.
LED
Description
LPBK
• Glows green when module is in Loopback mode.
NO LNK
• Glows green when a link is NOT established.
PBEO
• When Transmit Data Source is set to pseudorandom
bit sequence, this LED glows yellow when Prisma
DS3/E3/STS-1 module receives a Pseudorandom Bit
Sequence with errors.
• The LED stays off when the converter receives a
pseudorandom bit sequence without errors.
• When Transmit Data Source is set to any other
configuration besides pseudorandom bit sequence,
this LED remains off as well.
Continued on next page
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Module LED Indicators, Continued
LEDs Next to Fiber Optic Port
The module front panel contains the following LEDs next to the fiber optic port.
LED
Description
FA
• Glows green when FiberAlert is enabled.
RM
• Glows green on the remote unit when Remote
Management is enabled.
• Glows green on the local unit when it has discovered a
manageable remote unit.
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NO LNK
• Glows green when a link is NOT established.
SYM
• Glows yellow when a FX symbol error has occurred.
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19
Troubleshooting
General Troubleshooting
• During installation, first test the fiber and BNC connections with all
troubleshooting features disabled, then enable these features, if desired, just before
final installation. This reduces the features’ interference with testing.
• When working with units where the features cannot be disabled, you must
establish BOTH your BNC and fiber connections; the NO LNK LEDs should not be
lit (i.e., NO LNK LED not lit = good connection, NO LNK LED lit = problem).
• To test a media converter by itself, first make sure you have an appropriate fiber
patch cable, and then follow these steps to test.
1.
Connect the media converter to the BNC device with a coax cable.
2.
Loop a single strand of fiber from the transmit port to the receive port of your
media converter.
Note: For single-strand fiber products, connect a single fiber cable from the
local site Prisma DS3/E3/STS-1 modules to a remote site’s Prisma
DS3/E3/STS-1 module.
3.
Verify that you have a valid connection for both the BNC and fiber ports (see
Module LED Indicators) on your media converter.
Continued on next page
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Prisma DS3/E3/STS-1 Media Converter Module Installation Instructions
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Troubleshooting, Continued
Loopback Testing
The Prisma DS3/E3/STS-1 module includes two loopback test modes: coax loopback
and fiber loopback. Each loopback test simply redirects the incoming signal back out
to the origin.
The following illustrations show the path that a signal takes in each of the loopback
test modes.
Coax Loopback
Fiber Loopback
Loopback testing aids in troubleshooting problems with network connections should
they occur. “Looping" received data back onto the transmit path helps determine
whether a connection is still valid. Remote loopback tests isolate problems on the
copper run between a DS3/E3/STS-1 converter and the connected device, while
local loopback tests isolate problems on the fiber connected to the device.
Continued on next page
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Troubleshooting, Continued
The following four illustrations show a typical progression of loopback tests (i.e.,
starting by checking the copper segments at the local side, then the copper segment
at the remote side, etc).
Continued on next page
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Troubleshooting, Continued
Testing with Pseudorandom Bit Sequence (PRBS)
To test using pseudorandom bit sequence, configure the Prisma DS3/E3/STS-1
modules for No Loopback, then configure the Transmit Data Source to “Transmit
Pseudorandom Bit Sequence”. Refer to DIP Switch Settings earlier in this document
for all settings.
Configure the local router for loopback, conduct the test, and then refer to the
Module LED Indicators earlier in this document to verify errors were not received.
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For Information
If You Have Questions
If you have technical questions, call SciCare™ Broadband Services for assistance.
Follow the menu options to speak with a service engineer.
Use the following table to find the center in your area.
Region
Assistance Centers
Telephone and Fax Numbers
North America
SciCare Broadband Services
Atlanta, Georgia
United States
• For Technical Support, call:
Toll-free
Local
1-800-722-2009
770-236-6900
• For Customer Service questions or to request an
RMA number, call:
Toll-free
Local
Fax
Europe
Belgium
1-800-722-2009
770-236-6900
770-236-5477
• For Technical Support, call:
Telephone
32-56-445-197
32-56-445-155
32-56-445-053
Fax
• For Customer Service questions or to request an
RMA number, call:
Telephone
Asia-Pacific
Australia
Hong Kong
Brazil
Brazil
Fax
32-56-445-133
32-56-445-118
32-56-445-051
Telephone
Fax
852-2522-5059
852-2522-5624
• For Technical Support, call:
Telephone
Fax
55-11-3845-9154 ext 230
55-11-3845-2514
• For Customer Service questions or to request an
RMA number, call:
South America,
other than Brazil
Argentina
Mexico
Central America
Mexico
Telephone
Fax
55-11-3845-9154 ext 244
55-11-3845-2514
Telephone
Fax
54-23-20-403340 ext 109
54-23-20-403340 ext 103
• For Technical Support, call:
Telephone
Fax
52-55-91-71-1872
52-55-91-71-1899
• For Customer Service questions or to request an
RMA number, call:
Telephone
Fax
24
Prisma DS3/E3/STS-1 Media Converter Module Installation Instructions
52-55-91-71-1869
52-55-91-71-1899
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Scientific-Atlanta, Inc.
5030 Sugarloaf Parkway, Box 465447
Lawrenceville, GA 30042
770.236.5000
www.scientificatlanta.com
Scientific-Atlanta, the Scientific-Atlanta logo, and Prisma are registered trademarks of ScientificAtlanta, Inc.
MediaCenter, PrismaView, MediaCPE, and SciCare are trademarks of Scientific-Atlanta, Inc.
All other trademarks shown are trademarks of their respective owners.
Product and service availability subject to change without notice.
© 2004 Scientific-Atlanta, Inc. All rights reserved.
November 2004 Printed in USA
Part Number 4008357 Rev B