Data Connect DSP19.2 User manual

DATA CONNECT ENTERPRISE
User’s Manual
For
DSP19.2 & DSP9612
Fast Poll Modem
Document Number 520-01001-101 Rev. A

Copyright © 2008 Data Connect Enterprise.
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Web site: www.data-connect.com
The products and programs described in this User’s Manual are licensed products of Data connect
Enterprise. This User’s Manual contains proprietary information protected by copyright, and this
User’s Guide and all accompanying hardware and documentation are copyrighted.
Data Connect Enterprise. does not warrant that the product will work in all environments and
applications, and makes no warranty and representation, either implied or expressed, with respect to
the quality, performance, merchantability, or fitness for a particular purpose.
Information in this User’s Guide is subject to change without notice and does not represent a
commitment on the part of Data Connect Enterprise. Data Connect Enterprise. assumes no
responsibility for any inaccuracies that may be contained in this User’s Manual.
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Connect Enterprise
DSP19.2 Fast Poll Modem User’s Manual
520-01001-101 Rev. A
December 2007

DATA CONNECT ENTERPRISE
iii User’s Manual - DSP19.2 Fast Poll Modem
Contents
Chapter 1 Introduction............................................................................................ 6
Features......................................................................................................................7
Applications.................................................................................................................8
Chapter 2 Installation.............................................................................................. 9
Unpacking Your Hardware..........................................................................................9
Additional Items You Need to Complete Your Installation...........................................9
Hardware Overview...................................................................................................10
Front View.................................................................................................................10
Back View..................................................................................................................10
Rack-Mount View......................................................................................................11
Installation Summary.................................................................................................11
Configuring the Modem.............................................................................................12
Setting the DIP Switches...........................................................................................14
S1-1, S1-2, S1-3 −Modem Data Rate.................................................................15
S1-4 −Async Character (Fast-Poll Mode Only) ..................................................15
S1-5 −Auto RTS .................................................................................................15
S1-6 −Transmit Carrier Control ..........................................................................15
S1-7 −2 or 4-Wire Operation ..............................................................................16
S1-8 −Transmitter Impedance............................................................................16
S1-9 −Remote Loopback Enable........................................................................16
S1-10 −Reserved (Test Only).............................................................................17
S2-1 through S2-3 −Transmit Level....................................................................17
S2-4 −Receiver Dynamic Range........................................................................17
S2-5 and S2-6 −Cable Equalizer (Fast-Poll Mode Only)....................................18
S2-7 −Anti-streaming..........................................................................................18
S2-10 −RTS-CTS Delay (Bell 202 Mode Only) ..................................................18
Configuring the Jumper Blocks .................................................................................19
For Stand-alone Units..........................................................................................19
For Rack-Mount Plug-in Modules........................................................................19
Connecting to a Transmission Line...........................................................................19
Connecting to a Voltage Source................................................................................21
Connecting to an RS-232 Device..............................................................................22
Connecting to an RS-485 Device..............................................................................22
LEDs..........................................................................................................................23
Loopback Control Switch...........................................................................................23

Contents
iv User’s Manual - DSP19.2 Fast Poll Modem
Appendix A Troubleshooting................................................................................ 25
Problem Solving........................................................................................................25
Appendix B Specifications ................................................................................... 26
General Specifications ..............................................................................................26
Mechanical Specifications.........................................................................................27
Interface Connector Pin Assignments.......................................................................27
RS-232 (DTE) Interface.............................................................................................28
RS-485 (DTE) Interface.............................................................................................28
Environmental Specifications....................................................................................28
Appendix C Limited Product Warranty................................................................ 29
Appendix D RMA Procedure................................................................................. 30

Contents
v User’s Manual - DSP19.2 Fast Poll Modem
Figures
Figure 1-1. Point-to-Point Network Using the DSP19.2FP Modem.........................................8
Figure 1-2. Multipoint Polling Network Using the DSP19.2FP Modem...................................8
Figure 2-1. Front View of the DSP19.2 Modem....................................................................10
Figure 2-2. Back View of DSP19.2 Modem...........................................................................10
Figure 2-3. Rack-Mount Module for the DSP19.2-RM Modem Board...................................11
Figure 2-4. DSP19.2 Fast-Poll Stand-alone Modem Board..................................................13
Figure 2-5. DSP19.2 Fast-Poll Rack-mount Modem Board ..................................................13
Figure 2-6. DSP19.2 Modem Transmission Line Interface...................................................20
Figure 2-7. Pin Locations on the Modem’s RJ-11C Jack......................................................22
Figure 2-8. Loopback Diagnostic Modes...............................................................................24
Figure 2-9. Back-to-Back Connection to a Second Modem..................................................27
Tables
Table 2-1. Modem Switch Settings .......................................................................................14
Table 2-2. Modem Operating Speed.....................................................................................15
Table 2-3. Transmit Levels....................................................................................................17
Table 2-4. Transmission Line Connector Pin Assignments ..................................................20
Table 2-5. RJ-11C Modular Jack Pin Assignments...............................................................22
Table 2-6. Modem LEDs.......................................................................................................23
Table A-1 Problem Solving ..................................................................................................25
Table B-1. Leased Line Terminal Block Pin Assignments ....................................................27
Table B-2. RS-232 (DTE) Interface.......................................................................................28
Table B-2. RS-485 (DTE) Interface.......................................................................................28

DATA CONNECT ENTERPRISE
6 User’s Manual - DSP19.2 Fast Poll Modem
Chapter 1
Introduction
Thank you for purchasing DCE’s DSP19.2 fast poll modem, the finest industrial-grade fast-
poll modem available.
The DCE modem is a 19200/9600/2400/1200 bps modem designed for 4-wire, full-duplex or
2-wire, half-duplex operation over a voice-band leased line or private line. The modem is
designed utilizing the latest digital-signal processing (DSP) technology to achieve high
performance. The modem employs efficient modulation and encoding scheme to achieve
fast modem training time. The modem is also backward compatible with Bell 202 and ITU-T
V.23 modems.
The DSP19.2 is the most technologically advanced modem on the market. Boasting a fast
DSP processor and automatic adaptive equalizer, the DSP19.2 modem is ideally suited for
multi-point communication systems that require fast response time, short training time, and
low throughput delay.
This User’s Guide describes the DSP19.2 (AC-powered) and DSP19.2-LV (DC-powered)
stand-alone modems, as well as the rack-mount DSP19.2-RM plug-in module for the
Motorola/UDS RM16M. This manual is designed to get your modem “up and running” as
quickly as possible. It contains all the information you need to configure and install your
modem. It also contains troubleshooting information in the unlikely event you encounter a
problem with your modem.

Introduction
7 User’s Manual - DSP19.2 Fast Poll Modem
Features
The DSP19.2 modem is specifically designed for harsh environments typically associated in
utility substations and industrial facilities. Though functionally similar to commercial modems,
the DSP19.2 provides the following unique features that make it well suited for utility and
industrial applications.
yPackaged in a rugged, compact enclosure for industrial applications.
yLeased-line interface protected with heavy-duty surge protection devices.
yBuilt-in hardware watchdog timer for software lock-up prevention without
requiring human intervention, making it ideal for unmanned locations.
yWorks within an extended temperature range of -40ºC to +85ºC.
yDesigned with coupling transformers for high-voltage isolation and common
mode noise rejection in industrial and commercial environments.
yOperate over voice-band conditioned or unconditioned leased-line and pilot
wires.
yAccepts power from a wide range of AC and DC power supplies:
– DSP19.2: 90 to 265 VAC or 100 to 400 VDC
– DSP19.2-LV: 10 to 60 VDC
– DSP19.2-RM: Plug-in module for the Motorola/UDS RM16M modem nest
yStandard industrial connectors for data, analog, and power interfaces allow
reliable interconnection to other industrial equipment.
yAsynchronous data rates (selectable) of 19200, 9600, 2400, and 0-1800 bps.
yEasily accessible DIP switches for user configuration and option selection.
yDB9-F connector for RS-232/V.24 interface, and RJ-11 for RS-485.
yLocal analog, local digital, and remote digital loopback diagnostics.

Introduction
8 User’s Manual - DSP19.2 Fast Poll Modem
Applications
The DSP19.2 modem is designed for point-to-point and multipoint data communications.
Figure 1-1 shows a typical point-to-point configuration using the DSP19.2 modem and
Figure 1-2 shows a typical multipoint configuration using the DSP19.2 modem.
Workstation Modem Modem
Remote Terminal
Figure 1-1. Point-to-Point Network Using the DSP19.2 Modem
Workstation Modem
Modem
Modem
Modem Modem
Modem
Remote Terminal
Remote Terminal
Figure 1-2. Multipoint Polling Network Using the DSP19.2 Modem
There are a number of factors that can affect the modem’s operation and performance.
These include:
yModem speed (i.e. bit error rate, transmission line distance)
y2-wire or 4-wire configuration
yTransmission line characteristics, noise, and line impairments
yNetwork configuration (point-to-point or multipoint)

DATA CONNECT ENTERPRISE
9 User’s Manual - DSP19.2 Fast Poll Modem
Chapter 2
Installation
This chapter describes how to configure and install the modem to maximize the performance
and to match with your Data Terminal Equipment (DTE) or Remote Terminal Unit (RTU).
Unpacking Your Hardware
Your package should include:
yAt least one of the following DSP19.2 modems:
– Model DSP19.2 for 90 to 265 VAC
– Model DSP19.2-LV for 10 to 60 VDC
– Model DSP19.2-RM for RM16M plug-in module
yA switching power supply module for 90-265VAC input (model DSP19.2 only)
yA leased-line cable with optional earth ground conductor (for stand-alone units
only)
yA DC power cable (model DSP19.2-LV modem only)
yThis User’s Manual or CD-ROM
If your package contents are damaged or missing, contact your place of purchase.
Additional Items You Need to Complete Your Installation
To complete your installation and operate your modem, you need these additional items:
yTwo- or four-wire transmission line or leased line
yA DB-9 data cable for your RS-232 interface Data Terminal Equipment (DTE)
port, or a RJ-11C data cable for your RS-485 DTE.
yPower supply that provides either:
– 90 to 265 Volts AC, 50 to 60 Hz, single phase or 100 to 400 VDC (if you have
the model DSP19.2 modem), or
– 10 to 60 Volts DC (if you have the model DSP19.2-LV modem)
– For the DSP19.2-RM, consult the documentation for your Motorola/UDS
RM16M

Installation
10 User’s Manual - DSP19.2 Fast Poll Modem
Hardware Overview
Front View
Figure 2-1 shows the front view of the DSP19.2 stand-alone modem. Starting from the left
side, this view shows:
yA set of eight LEDs for modem interface status (see Table 2-6 on page 23)
yA loopback control push-button switch (see Loopback Control Switch on page 23)
Figure 2-1. Front View of the DSP19.2 Modem
Back View
Figure 2-2 shows the back view of the DSP19.2 stand-alone modem. Starting from the left
side, this view shows:
yA 4-wire/2-wire configuration block labeled LEASED LINE
yAn RJ-11 modular jack labeled RS-485 for connecting the modem to an RS-485
RTU
yA female, 9-pin RS-232 connector labeled RS-232 for connecting the modem to a
standard DTE (RTU)
yA power connector labeled 10-48V DC
Figure 2-2. Back View of DSP19.2 Modem