RAD Data comm E1, T1 User Manual
Installation and Operation Manual
FOM-E1/T1
E1/T1 Fiber Optic Modem
FOM-E1/T1
E1/T1 Fiber Optic Modem
Installation and Operation Manual
Notice
This manual contains information that is proprietary to RAD Data Communications Ltd. ("RAD"). No
part of this publication may be reproduced in any form whatsoever without prior written approval by
RAD Data Communications.
Right, title and interest, all information, copyrights, patents, know-how, trade secrets and other
intellectual property or other proprietary rights relating to this manual and to the FOM-E1/T1 and any
software components contained therein are proprietary products of RAD protected under international
copyright law and shall be and remain solely with RAD.
FOM-E1/T1 is a registered trademark of RAD. No right, license, or interest to such trademark is granted
hereunder, and you agree that no such right, license, or interest shall be asserted by you with respect
to such trademark.
You shall not copy, reverse compile or reverse assemble all or any portion of the Manual or the FOME1/T1. You are prohibited from, and shall not, directly or indirectly, develop, market, distribute,
license, or sell any product that supports substantially similar functionality as the FOM-E1/T1, based on
or derived in any way from the FOM-E1/T1. Your undertaking in this paragraph shall survive the
termination of this Agreement.
This Agreement is effective upon your opening of the FOM-E1/T1 package and shall continue until
terminated. RAD may terminate this Agreement upon the breach by you of any term hereof. Upon
such termination by RAD, you agree to return to RAD the FOM-E1/T1 and all copies and portions
thereof.
For further information contact RAD at the address below or contact your local distributor.
International Headquarters
RAD Data Communications Ltd.
24 Raoul Wallenberg St.
Tel Aviv 69719 Israel
Tel: 972-3-6458181
Fax: 972-3-6498250
E-mail: rad@rad.co.il
© 1987–2002 RAD Data Communications Ltd. Publication No. 284-200-01/03
U.S. Headquarters
RAD Data Communications Inc.
900 Corporate Drive
Mahwah, NJ 07430 USA
Tel: (201) 529-1100, Toll free: 1-800-444-7234
Fax: (201) 529-5777
E-mail: market@radusa.com
Limited Warranty
RAD warrants to DISTRIBUTOR that the hardware in the FOM-E1/T1 to be delivered hereunder shall
be free of defects in material and workmanship under normal use and service for a period of twelve
(12) months following the date of shipment to DISTRIBUTOR.
If, during the warranty period, any component part of the equipment becomes defective by reason of
material or workmanship, and DISTRIBUTOR immediately notifies RAD of such defect, RAD shall have
the option to choose the appropriate corrective action: a) supply a replacement part, or b) request
return of equipment to its plant for repair, or c) perform necessary repair at the equipment's location.
In the event that RAD requests the return of equipment, each party shall pay one-way shipping costs.
RAD shall be released from all obligations under its warranty in the event that the equipment has been
subjected to misuse, neglect, accident or improper installation, or if repairs or modifications were
made by persons other than RAD's own authorized service personnel, unless such repairs by others
were made with the written consent of RAD.
The above warranty is in lieu of all other warranties, expressed or implied. There are no warranties
which extend beyond the face hereof, including, but not limited to, warranties of merchantability and
fitness for a particular purpose, and in no event shall RAD be liable for consequential damages.
RAD shall not be liable to any person for any special or indirect damages, including, but not limited to,
lost profits from any cause whatsoever arising from or in any way connected with the manufacture,
sale, handling, repair, maintenance or use of the FOM-E1/T1, and in no event shall RAD's liability
exceed the purchase price of the FOM-E1/T1.
DISTRIBUTOR shall be responsible to its customers for any and all warranties which it makes relating
to FOM-E1/T1 and for ensuring that replacements and other adjustments required in connection with
the said warranties are satisfactory.
Software components in the FOM-E1/T1 are provided "as is" and without warranty of any kind. RAD
disclaims all warranties including the implied warranties of merchantability and fitness for a particular
purpose. RAD shall not be liable for any loss of use, interruption of business or indirect, special,
incidental or consequential damages of any kind. In spite of the above RAD shall do its best to provide
error-free software products and shall offer free Software updates during the warranty period under
this Agreement.
RAD's cumulative liability to you or any other party for any loss or damages resulting from any claims,
demands, or actions arising out of or relating to this Agreement and the FOM-E1/T1 shall not exceed the
sum paid to RAD for the purchase of the FOM-E1/T1. In no event shall RAD be liable for any indirect,
incidental, consequential, special, or exemplary damages or lost profits, even if RAD has been advised of
the possibility of such damages.
This Agreement shall be construed and governed in accordance with the laws of the State of Israel.
General Safety Instructions
The following instructions serve as a general guide for the safe installation and operation of
telecommunications products. Additional instructions, if applicable, are included inside the manual.
Safety Symbols
This symbol may appear on the equipment or in the text. It indicates
potential safety hazards regarding product operation or maintenance to
operator or service personnel.
Warning
Danger of electric shock! Avoid any contact with the marked surface while
the product is energized or connected to outdoor telecommunication lines.
.
Warning
Protective earth: the marked lug or terminal should be connected to the building
protective earth bus.
Some products may be equipped with a laser diode. In such cases, a label
with the laser class and other warnings as applicable will be attached near
the optical transmitter. The laser warning symbol may be also attached.
Please observe the following precautions:
• Before turning on the equipment, make sure that the fiber optic cable is
intact and is connected to the transmitter.
• Do not attempt to adjust the laser drive current.
• Do not use broken or unterminated fiber-optic cables/connectors or look
straight at the laser beam.
• The use of optical devices with the equipment will increase eye hazard.
• Use of controls, adjustments or performing procedures other than those
specified herein, may result in hazardous radiation exposure.
ATTENTION: The laser beam may be invisible!
Always observe standard safety precautions during installation, operation and maintenance of this
product. Only qualified and authorized service personnel should carry out adjustment, maintenance or
repairs to this product. No installation, adjustment, maintenance or repairs should be performed by
either the operator or the user.
Handling Energized Products
General Safety Practices
Do not touch or tamper with the power supply when the power cord is connected. Line voltages may
be present inside certain products even when the power switch (if installed) is in the OFF position or a
fuse is blown. For DC-powered products, although the voltages levels are usually not hazardous,
energy hazards may still exist.
Before working on equipment connected to power lines or telecommunication lines, remove jewelry
or any other metallic object that may come into contact with energized parts.
Unless otherwise specified, all products are intended to be grounded during normal use. Grounding is
provided by connecting the mains plug to a wall socket with a protective earth terminal. If an earth lug
is provided on the product, it should be connected to the protective earth at all times, by a wire with a
diameter of 18 AWG or wider. Rack-mounted equipment should be mounted only in earthed racks
and cabinets.
Always make the ground connection first and disconnect it last. Do not connect telecommunication
cables to ungrounded equipment. Make sure that all other cables are disconnected before
disconnecting the ground.
Connection of AC Mains
Make sure that the electrical installation complies with local codes.
Always connect the AC plug to a wall socket with a protective ground.
The maximum permissible current capability of the branch distribution circuit that supplies power to
the product is 16A. The circuit breaker in the building installation should have high breaking capacity
and must operate at short-circuit current exceeding 35A.
Always connect the power cord first to the equipment and then to the wall socket. If a power switch is
provided in the equipment, set it to the OFF position. If the power cord cannot be readily
disconnected in case of emergency, make sure that a readily accessible circuit breaker or emergency
switch is installed in the building installation.
Connection of DC Mains
Unless otherwise specified in the manual, the DC input to the equipment is floating in reference to the
ground. Any single pole can be externally grounded.
Due to the high current capability of DC mains systems, care should be taken when connecting the DC
supply to avoid short-circuits and fire hazards.
DC units should be installed in a restricted access area, i.e. an area where access is authorized only to
qualified service and maintenance personnel.
Make sure that the DC supply is electrically isolated from any AC source and that the installation
complies with the local codes.
The maximum permissible current capability of the branch distribution circuit that supplies power to
the product is 16A. The circuit breaker in the building installation should have high breaking capacity
and must operate at short-circuit current exceeding 35A.
Before connecting the DC supply wires, ensure that power is removed form the DC circuit. Locate the
circuit breaker of the panel board that services the equipment and switch it to the OFF position. When
connecting the DC supply wires, first connect the ground wire to the corresponding terminal, then the
positive pole and last the negative pole. Switch the circuit breaker back to the ON position.
A readily accessible disconnect device that is suitably rated and approved should be incorporated in
the building installation.
Connection of Data and Telecommunications Cables
Data and telecommunication interfaces are classified according to their safety status.
The following table lists the status of several standard interfaces. If the status of a given port differs from
the standard one, a notice will be given in the manual.
Ports Safety Status
V.11, V.28, V.35, V.36, RS-530,
X.21, 10 BaseT, 100 BaseT,
Unbalanced E1, E2, E3, STM, DS-2,
DS-3, S-Interface ISDN, Analog voice
E&M
xDSL (without feeding voltage),
Balanced E1, T1, Sub E1/T1
FXS (Foreign Exchange Subscriber) TNV-2 Telecommunication Network Voltage-2:
FXO (Foreign Exchange Office), xDSL
(with feeding voltage), U-Interface
ISDN
SELV Safety Extra Low Voltage:
Ports which do not present a safety hazard. Usually
up to 30 VAC or 60 VDC.
TNV-1 Telecommunication Network Voltage-1:
Ports whose normal operating voltage is within the
limits of SELV, on which overvoltages from
telecommunications networks are possible.
Ports whose normal operating voltage exceeds the
limits of SELV (usually up to 120 VDC or telephone
ringing voltages), on which overvoltages from
telecommunication networks are not possible. These
ports are not permitted to be directly connected to
external telephone and data lines.
TNV-3 Telecommunication Network Voltage-3:
Ports whose normal operating voltage exceeds the
limits of SELV (usually up to 120 VDC or telephone
ringing voltages), on which overvoltages from
telecommunication networks are possible.
Always connect a given port to a port of the same safety status. If in doubt, seek the assistance of a
qualified safety engineer.
Always make sure that the equipment is grounded before connecting telecommunication cables. Do
not disconnect the ground connection before disconnecting all telecommunications cables.
Some SELV and non-SELV circuits use the same connectors. Use caution when connecting cables.
Extra caution should be exercised during thunderstorms.
When using shielded or coaxial cables, verify that there is a good ground connection at both ends. The
earthing and bonding of the ground connections should comply with the local codes.
The telecommunication wiring in the building may be damaged or present a fire hazard in case of
contact between exposed external wires and the AC power lines. In order to reduce the risk, there are
restrictions on the diameter of wires in the telecom cables, between the equipment and the mating
connectors.
Caution
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cords.
Attention
Pour réduire les risques s’incendie, utiliser seulement des conducteurs de
télécommunications 26 AWG ou de section supérieure.
Some ports are suitable for connection to intra-building or non-exposed wiring or cabling only. In such
cases, a notice will be given in the installation instructions.
Do not attempt to tamper with any carrier-provided equipment or connection hardware.
Electromagnetic Compatibility (EMC)
The equipment is designed and approved to comply with the electromagnetic regulations of major
regulatory bodies. The following instructions may enhance the performance of the equipment and will
provide better protection against excessive emission and better immunity against disturbances.
A good earth connection is essential. When installing the equipment in a rack, make sure to remove all
traces of paint from the mounting points. Use suitable lock-washers and torque. If an external
grounding lug is provided, connect it to the earth bus using braided wire as short as possible.
The equipment is designed to comply with EMC requirements when connecting it with unshielded
twisted pair (UTP) cables. However, the use of shielded wires is always recommended, especially for
high-rate data. In some cases, when unshielded wires are used, ferrite cores should be installed on
certain cables. In such cases, special instructions are provided in the manual.
Disconnect all wires which are not in permanent use, such as cables used for one-time configuration.
The compliance of the equipment with the regulations for conducted emission on the data lines is
dependent on the cable quality. The emission is tested for UTP with 80 dB longitudinal conversion loss
(LCL).
Unless otherwise specified or described in the manual, TNV-1 and TNV-3 ports provide secondary
protection against surges on the data lines. Primary protectors should be provided in the building
installation.
The equipment is designed to provide adequate protection against electro-static discharge (ESD).
However, it is good working practice to use caution when connecting cables terminated with plastic
connectors (without a grounded metal hood, such as flat cables) to sensitive data lines. Before
connecting such cables, discharge yourself by touching earth ground or wear an ESD preventive wrist
strap.
FCC-15 User Information
This equipment has been tested and found to comply with the limits of the Class A 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 Installation and Operation manual, may cause harmful interference to the 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 the interference at his own expense.
Canadian Emission Requirements
This Class A digital apparatus meets all the requirements of the Canadian Interference-Causing
Equipment Regulation.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
Warning per EN 55022 (CISPR-22)
Warning
Avertissement
Achtung
This is a class A product. In a domestic environment, this product may cause
radio interference, in which case the user will be required to take adequate
measures.
Cet appareil est un appareil de Classe A. Dans un environnement résidentiel, cet
appareil peut provoquer des brouillages radioélectriques. Dans ces cas, il peut
être demandé à l’utilisateur de prendre les mesures appropriées.
Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können
bei Betrieb dieses Gerätes Rundfunkströrungen auftreten, in welchen Fällen der
Benutzer für entsprechende Gegenmaßnahmen verantwortlich ist.
Declaration of Conformity
Manufacturer's Name: RAD Data Communications Ltd.
Manufacturer's Address: 24 Raoul Wallenberg St.
Tel Aviv 69719
Israel
declares that the product:
Product Name: FOM-E1/T1
conforms to the following standard(s) or other normative document(s):
EMC: EN 55022 (1994) Limits and methods of measurement of radio disturbance
characteristics of information technology equipment.
EN 50082-1 (1992) Electromagnetic compatibility – Generic immunity standards
for residential, commercial and light industry.
Safety: EN 60950 (1992/93) Safety of information technology equipment, including
electrical business equipment.
Supplementary Information:
The product herewith complies with the requirements of the EMC Directive 89/336/EEC and the Low
Voltage Directive 73/23/EEC. The product was tested in a typical configuration.
Tel Aviv, October 3rd, 1996
Haim Karshen
VP Quality
European Contact: RAD Data Communications GmbH, Otto-Hahn-Str. 28-30,
85521 Ottobrunn-Riemerling, Germany
Quick Start Guide
Installation of FOM-E1/T1 should be carried out only by an experienced
technician. If you are familiar with FOM-E1/T1, use this quick start guide to set it
up for operation.
This guide describes the standalone version of the modem.
Perform the installation procedures for both the local and the remote units.
1. Installing FOM-E1/T1
Configuring FOM-E1/T1
1. Open the modem’s case.
2. Select the E1/T1 electrical interface (JP2, JP4, JP5, JP6, JP7 and JP8).
3. If using E1 unbalanced interface, connect the BNC shield to the chassis ground.
If you are using balanced E1/T1, leave the shield floating (SW1 and SW2).
4. Close the modem’s case.
Table below provides details on the functions of the internal jumpers and switches,
and their default settings.
Jumper/Switch Function Possible Settings Factory
Setting
SW3, AIS When a major alarm is
detected, AIS is transmitted
to either the electrical or
optical interface.
SW2, INPUT Ground
SW1, OUTPUT Ground
JP2, JP4, JP5, JP6, JP7, JP8,
INTERFACE
Controls connection of the
BNC shield to the chassis
ground
Selects the E1/T1 electrical
interface
ON – Transmit AIS
OFF – Do not transmit AIS
CONNECTED – BNC shield is connected
to the chassis ground
(for E1 unbalanced)
FLOATING – BNC shield is disconnected
from the chassis ground
(for E1/T1 balanced)
100 ohm BAL T1 – T1 100Ω balanced
(DB-15 connector)
120 ohm BAL CEPT – E1 120Ω balanced
(DB-15 connector)
75 ohm UNBAL CEPT – E1 75Ω
unbalanced
(BNC
connectors)
ON
FLOATING
120 ohm
BAL CEPT
For
Note:
Installing FOM-E1/T1 1
FOM-E1/T1
units with 115 VAC, factory setting is 100Ω BAL T1.
Quick Start Guide FOM-E1/T1 Installation and Operation Manual
Connecting the Cables
To connect cables:
1. Connect the E1/T1 electrical interface.
2. Connect the fiber optic interface.
3. Connect the power cable (first to the modem, then to the mains).
Operation starts when the power is applied to the rear panel power
connector.
2. Operating FOM-E1/T1
1. Check that the TEST switch is set to the NORM position.
2. Verify LED status. All the LED indicators should be OFF, except for the PWR
indicator.
3. If there is an indication of a malfunction or fault, run a diagnostic test.
2 Operating FOM-E1/T1
Contents
Chapter 1. Introduction
1.1 Overview..................................................................................................................... 1-1
Versions................................................................................................................................ 1-1
Application ........................................................................................................................... 1-2
Features................................................................................................................................ 1-2
1.2 Physical Description..................................................................................................... 1-3
1.3 Functional Description................................................................................................. 1-3
Signal Conversion ................................................................................................................. 1-4
Data/Clock Recovery ............................................................................................................1-4
Data Transfer........................................................................................................................ 1-4
1.4 Technical Specifications............................................................................................... 1-5
Chapter 2. Installation and Setup
2.1 Site Requirements and Prerequisites ............................................................................ 2-1
2.2 Package Contents ........................................................................................................2-1
2.3 Installation and Setup .................................................................................................. 2-2
Configuring FOM-E1/T1........................................................................................................2-2
Connecting the Interfaces .....................................................................................................2-4
Connecting the Power ..........................................................................................................2-5
Chapter 3. Operations
3.1 Front Panel Controls and Indicators ............................................................................. 3-1
3.2 Operating Instructions ................................................................................................. 3-2
Turning On........................................................................................................................... 3-2
Normal Operating Instructions .............................................................................................. 3-2
Turning Off........................................................................................................................... 3-2
Chapter 4. Testing and Diagnostics
4.1 Status Indicators and Alarm Relay ................................................................................ 4-1
Front Panel LEDs ..................................................................................................................4-1
Alarm Relay ..........................................................................................................................4-1
4.2 Diagnostic Tests ........................................................................................................... 4-2
Local Analog Loopback (LLB) ................................................................................................ 4-2
Remote Digital Loopback (RLB).............................................................................................4-2
4.3 Troubleshooting Instructions ........................................................................................ 4-3
4.4 Frequently Asked Questions ........................................................................................ 4-4
Chapter 5. FOM-E1/T1/R Card Version
5.1 ASM-MN-214 Card Cage............................................................................................. 5-1
5.2 Power Supply .............................................................................................................. 5-2
AC Supply ............................................................................................................................5-2
DC Supply............................................................................................................................5-3
Power Supply Redundancy ................................................................................................... 5-3
5.3 FOM-E1/T1/R Front Panel............................................................................................ 5-4
FOM-E1/T1 Installation and Operation Manual i
Table of Contents
5.4 Installing the FOM-E1/T1/R Card ................................................................................. 5-5
Setting Internal Jumpers and Switches ................................................................................... 5-5
Installing FOM-E1/T1/R into the ASM-MN-214 Card Cage.....................................................5-6
Connecting the Interfaces .....................................................................................................5-6
Appendix A. Interface Connector Specifications
List of Figures
1-1 FOM-E1/T1 Application.......................................................................................................... 1-2
1-2 FOM-E1/T1 3D View.............................................................................................................. 1-3
1-3 FOM-E1/T1 Block Diagram .................................................................................................... 1-3
2-1 FOM-E1/T1 PCB Layout ......................................................................................................... 2-3
2-2 FOM-E1/T1 Rear Panel, AC-Powered Unit ............................................................................. 2-4
3-1. FOM-E1/T1 Front Panel......................................................................................................... 3-1
4-1. Local Analog Loopback ......................................................................................................... 4-2
4-2. Remote Digital Loopback ...................................................................................................... 4-2
5-1 ASM-MN-214 Rear Panel ....................................................................................................... 5-2
5-2 ASM-MN-214 Front Panel ...................................................................................................... 5-3
5-3 FOM-E1/T1/R Front Panel ...................................................................................................... 5-4
5-4 FOM-E1/T1/R PCB Layout ...................................................................................................... 5-5
List of Tables
1-1. Fiber Optic Interface Types ................................................................................................... 1-2
2-1 FOM-E1/T1 Internal Jumpers and Switches............................................................................. 2-4
3-1. FOM-E1/T1 Front Panel Controls and Indicators .................................................................... 3-1
4-1. DB-15 Connector, Alarm Relay Pins ...................................................................................... 4-1
4-2. Troubleshooting Chart ........................................................................................................... 4-3
5-1. FOM-E1/T1/R Internal Jumpers and Switches......................................................................... 5-6
ii FOM-E1/T1 Installation and Operation Manual
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