Data Connect DSP19.2 User Manual

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

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Summary of Contents for Data Connect DSP19.2

  • Page 1 DATA CONNECT ENTERPRISE User’s Manual DSP19.2 & DSP9612 Fast Poll Modem Document Number 520-01001-101 Rev. A...
  • Page 2 All Rights Reserved. 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.
  • Page 3: Table Of Contents

    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 User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 4 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 User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 5 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.
  • Page 6: Chapter 1 Introduction

    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.
  • Page 7: 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.
  • Page 8: Applications

    Introduction 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. Modem Modem Remote Terminal Workstation Figure 1-1.
  • Page 9: Chapter 2 Installation

    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 User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 10: Hardware Overview

    Installation 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: A set of eight LEDs for modem interface status (see Table 2-6 on page 23) A loopback control push-button switch (see Loopback Control Switch on page 23) Figure 2-1.
  • Page 11: Rack-Mount View

    Installation Rack-Mount View Figure 2-3 shows the rack-mount plug-in module. Figure 2-3. Rack-Mount Module for the DSP19.2-RM Modem Board Installation Summary This section describes the steps for installing the modem. NOTE: It is important to follow the steps below to configure the modem’s DIP switches to match your DTE/RTU interface requirement and the transmission line characteristics.
  • Page 12: Configuring The Modem

    Figure 2-4. For DIP switches and jumpers on the rack-mount plug-in module, see Figure 2-5. 3. Carefully return the modem board into the enclosure. Then replace the rear panel after the configuration is completed. User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 13: Figure 2-4. Dsp19.2 Fast-Poll Stand-Alone Modem Board

    Configuration Switches Configuration Jumpers S1 & S2 JP1 & JP3 RS232 RS485 Hi-Z Figure 2-4. DSP19.2 Fast-Poll Stand-alone Modem Board Configuration DIP Switches Configuration Jumper for Receiver Termination High-Z 600 ohm Figure 2-5. DSP19.2 Fast-Poll Rack-mount Modem Board User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 14: Setting The Dip Switches

    S2-5: TX Cable Equalizer Enabled Disabled S2-6: RX Cable Equalizer Enabled Disabled S2-7: Anti-streaming Active Inactive S2-8: RTS-CTS Delay (Bell 202T only) 33 msec 8 msec NOTE: Switches S2-9 and S2-10 are for future options. User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 15: S1-1, S1-2, S1-3 − Modem Data Rate

    S1-6 OFF = Controlled by RTS (default) Switch S1-6 selects either constant or switched carrier. Constant carrier allows DTEs, such as asynchronous terminals or RTUs, to operate with modems, without requiring an input User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 16: S1-7 − 2 Or 4-Wire Operation

    S1-9 OFF = Loopback disabled (default) During instances of channel noise, the modem may mistake a received preamble as a request to go into remote digital loopback. Setting switch S1-9 to OFF prevents the modem User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 17: S1-10 − Reserved (Test Only)

    S2-4 OFF = +3 to −30 dBm (default) For short distances or to select a strong receive signal, set S2-4 to OFF. For a long-distance cable or low receive signal level, set S2-4 to ON (−43 dBm). User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 18: S2-5 And S2-6 − Cable Equalizer (Fast-Poll Mode Only)

    S2-6 ON = Enable RX Cable Equalizer S2-6 OFF = Disable RX Cable Equalizer (default) If you use the DSP19.2 as a limited-distance modem over pilot wire or unloaded cables, you may need to improve or extend the modem’s polling performance on long transmission lines by using the modem’s internal fixed Compromise Cable Equalizer when polling on long...
  • Page 19: Configuring The Jumper Blocks

    The modem’s Tx/Rx pair are non-polarized. NOTE: The modem does not support leased-line operation with DC shielding current. Leased-line connector pin assignments for the rack-mount module can be found in the documentation for your Motorola/UDS RM16M. User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 20: Figure 2-6. Dsp19.2 Modem Transmission Line Interface

    Corresponds to This Signal… Tx (Tx/Rx) Tx (Tx/Rx) Earth Ground (optional) NOTE: When 2-wire half duplex is used, the TX pair must be used for both transmit and receive. Figure 2-6. DSP19.2 Modem Transmission Line Interface User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 21: Connecting To A Voltage Source

    Model DSP19.2 (with AC-DC power converter): 90 to 265 Volts AC, 50 to 60 Hz, single phase or 100 to 400 VDC. The output of the converter is a 12 VDC source that will power the modem.
  • Page 22: Connecting To An Rs-232 Device

    Figure 2-7. Pin Locations on the Modem’s RJ-11C Jack Table 2-5. RJ-11C Modular Jack Pin Assignments RJ-11 Pin Number… Corresponds to Signal Name Modem Input or Output Not Used RxD+ Output RxD- Output TxD+ Input TxD- Input Not Used User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 23: Leds

    ON. Then raise the local modem’s RTS signal to start the test. The ALB and DLB LEDs of the remote modem should go ON when the modem is responded to remote digital loopback. This test will verify both modems’ transmitters, receivers, and the leased line User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 24: Figure 2-8. Loopback Diagnostic Modes

    Local (Host) Analog Loop Back Transmitter Receiver Leased Line HOST Receiver Transmitter Local (Host) Digital Loop Back Transmitter Receiver Leased Line HOST Receiver Transmitter Remote (RTU) Digital Loop Back Figure 2-8. Loopback Diagnostic Modes User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 25: Appendix A Troubleshooting

    The attached terminal or DTE may not be sending data to the do not blink. modem. Verify that data is being transmitted. If data is being transmitted, make sure the RS-232 cable is sound and securely connected to the modem and terminal or DTE. User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 26: Appendix B Specifications

    Operating temperature: -40°C to +85°C Power supply: Wide range switching power supply: • DSP19.2 (AC version): 90 to 265 Volts AC, 50/60 Hz, single phase or 90 to 400 VDC • DSP19.2-LV (DC version):10 to 60 Volts DC Surge protection:...
  • Page 27: Mechanical Specifications

    This Pin Number… Corresponds to This Signal… Earth Ground (optional) NOTE: When 2-wire half-duplex is used, the TX pair must be used for both transmit and receive. Figure 2-9. Back-to-Back Connection to a Second Modem User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 28: Rs-232 (Dte) Interface

    Environmental Specifications Operating temperature: -40 to + 85 Storage temperature: -40 to +125 Operating humidity: 5 to 95 %, non-condensing Line isolation: 3750 V RMS Surge protection: Leased line up to 15K VA User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 29: Appendix C Limited Product Warranty

    This warranty and limitation extends to customer and to users of the product and is in lieu of all warranties with respect to the product whether express, implied, or statutory, including without limitation the implied warranties of merchantability and fitness for a particular purpose. User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 30: Appendix Drma Procedure

    Purchase Order number or credit card number), card holder name, date of expiration on the RMA request. Repairs currently require 5 working days and are returned UPS second day air. Contact us by e-mail mspellerberg@data-connect.com or call: (301)924-7400 x 25 if you should have any questions. User’s Manual - DSP19.2 Fast Poll Modem...
  • Page 31 RMA Procedure User’s Manual - DSP19.2 Fast Poll Modem...

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Dsp9612

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