Telenetics DSP9612RM User manual
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DSP9612RM Flash Poll
Rack-Mount Modem
User’s Guide
0049−0519−000 Rev. A
Compliances
This device complies with Part 15A of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to Part 15A of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of
the following measures:
cReorient or relocate the receiving antenna.
cIncrease the separation between the equipment and the receiver.
cConnect the equipment to an outlet on a circuit other than the one to
which the receiver is connected.
cConsult the dealer or an experienced radio/TV technician for help.
If none of these actions resolves the problem, consult your distributor or an
experienced radio/television technician for additional suggestions.
Additionally, Section 15.838, paragraph d), of the FCC Rules and Regulations
states: “Where special accessories, such as shielded cables, are required in
order to meet FCC regulations, shielded cables must be used with this
equipment. Operation with non-approved equipment or unshielded cables is
likely to result in interference to radio and TV reception. The user is cautioned
that changes and modifications to this equipment without the approval of the
manufacturer could void the user’s authority to operate this equipment.
Page iii
Contents
CHAPTER 1 INTRODUCTION
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5
FEATURES
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6
APPLICATIONS
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7
ANCILLARY DOCUMENTATION
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7
CHAPTER 2 INSTALLATION
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9
UNPACKING YOUR HARDWARE
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9
ADDITIONAL ITEMS YOU NEED
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9
HARDWARE OVERVIEW
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10
Front View
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10
Component View
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11
INSTALLATION SUMMARY
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12
CONFIGURING THE MODEM
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12
High-Speed (Fast Poll) Mode
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12
Low-Speed (FSK) Mode
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18
INSTALLING THE MODEM IN THE UNIVERSAL DATA SHELF
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23
CONNECTING TO A TRANSMISSION LINE
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25
Modular Jack Connectors
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.
25
Mass Termination Connector
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26
CONNECTING AN RS-232 DEVICE
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26
LEDS
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27
LOOPBACK CONTROL SWITCH
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28
APPENDIX A, TROUBLESHOOTING
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29
PROBLEM SOLVING
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29
APPENDIX B, SPECIFICATIONS
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31
GENERAL SPECIFICATIONS
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31
MECHANICAL SPECIFICATIONS
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32
BACK-TO-BACK CONNECTIONS TO A SECOND MODEM
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33
RS-232 (RTU) Interface
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33
ENVIRONMENTAL SPECIFICATIONS
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34
COMPLIANCES
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34
APPENDIX C, LIMITED PRODUCT WARRANTY
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35
APPENDIX D, RMA PROCEDURE
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36
Contents
Page iv
NOTES
Page 5
Chapter 1
Introduction
ongratulations for purchasing the finest industrial-grade fast-
poll rack-mount modem available.
The Telenetics DSP9612RM (Flash Poll) modem is a
9600/4800/0-1800 bps rack-mount modem designed for 4-wire, full-
duplex or 2-wire, half-duplex operation over a voice-band leased line.
The modem is designed utilizing the latest digital-signal processing
(DSP) technology to achieve high performance. The modem employs
Telenetics’proprietary modulation and encoding scheme to achieve fast
modem training time. It is also backward compatible with Bell 202
modems.
The modem can be installed in either a Telenetics or a Motorola/UDS
RM16M Universal Data Shelf. The modem occupies only one rack
slot, eliminating the hassle of equipment trays and power bricks
required for “Plastic Box”modems. The modem is powered from the
Universal Data Shelf.
The DSP9612RM modem is ideally suited for multi-point
communication systems that require fast response time, short training
time, and low throughput delay. The DSP9612RM is the most
technologically advanced rack-mount modem on the market.
This User’s Guide is designed to let you get your modem “up and
running”as quickly as possible. It contains all the information you need
to install and configure your modem. It also contains troubleshooting
information in the unlikely event you encounter a problem with your
modem.
C
Introduction
Page 6
Features
Though functionally similar to commercial modems, the DSP9612RM
provides the following unique features that make it well suited for
utility and industrial applications.
cRequires only one rack slot in a Telenetics or a Motorola/UDS
RM16M Universal Data Shelf.
cOperates over voice-band conditioned or unconditioned leased line
and pilot wires.
cOperates without human intervention, making it ideal for
unmanned locations.
cWorks within an extended temperature range of -40ºC to +85ºC.
cDesigned with coupling transformers for high-voltage isolation and
common mode noise rejection in industrial and commercial
environments.
cAsynchronous data rates (selectable) of 9600, 4800, and 0-1800
bps.
cEasily accessible DIP switches for user configuration and option
selection.
cLocal analog, local digital, and remote digital loopback
diagnostics.
Applications
Page 7
Applications
The DSP9612RM modem is designed for point-to-point and multipoint
data communications. Figure 1-1 shows a typical multipoint
configuration.
Figure 1-1. Network of Multipoint Configuration
There are a number of factors that can affect the network’s and
modem’s operation and performance. These include:
cOperating speed
c2-wire or 4-wire configuration
cTransmission line characteristics, noise, and line impairments
cNetwork configuration (point-to-point or multipoint)
cNumber of nodes on the network
Ancillary Documentation
For information about the Telenetics RM16M Universal Data Shelf,
refer to the Telenetics RM16M Installation and Operation Manual for
the Universal Data Shelf version you have.
Introduction
Page 8
NOTES
Page 9
Chapter 2
Installation
his chapter describes how to install the modem.
Unpacking Your Hardware
Your package should include:
cAt least one DSP9612RM modem
cThis User’s Guide
If your package contents are damaged or missing, please contact your
place of purchase immediately.
Additional Items You Need
To use your modem, you need the following additional items:
cA Telenetics or Motorola/UDS RM16M Universal Data Shelf
cA two- or four-wire transmission line or leased line
T
Installation
Page 10
Hardware Overview
Front View
Figure 2-1 shows a front view of the DSP9612RM modem. Starting
from the top, this view shows:
cA loopback test switch. See page 28.
cA set of eight LEDs. See page 27.
Figure 2-1. Front View of Modem
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