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East Coast Datacom MSD-4C Operation Manual

4-port rs-232 code operated switch
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CHAPTER 1 - INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1
FUNCTIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2
THEORY OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 2 - BASIC OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1
FRONT PANEL INDICATORS AND SWITCHES . . . . . . . . . . . . . . . .
2.2
REAR PANEL CONNECTORS AND FUSES . . . . . . . . . . . . . . . . . . .
2.3
ASYNC DATA RATES/CHARACTOR . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4
RS-232 ASYNC ELECTRICAL INTERFACE . . . . . . . . . . . . . . . . . . . .
2.5
SUB-CHANNEL SERVICE MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6
ANTI-STREAMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7
RS-232 SERIAL PORT CABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 3 - INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1
VOLTAGE SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2
VOLTAGE SELECTION FUSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3
POWER CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4
DEFAULT CONFIGURATION SWITCH SETTINGS . . . . . . . . . . . . .
3.5
3.6
ASCII STRING COMMANDS FOR SWITCHING . . . . . . . . . . . . . . . .
4.0 - APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MSD-4C INSTALLATION AND OPERATIONS MANUAL

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Summary of Contents for East Coast Datacom MSD-4C

  • Page 1: Table Of Contents

    MSD-4C INSTALLATION AND OPERATIONS MANUAL TABLE OF CONTENTS CHAPTER 1 - INTRODUCTION ........
  • Page 2 OPERATIONS MANUAL 4-Port RS-232 CODE OPERATED SWITCH MSD-4C November 1, 2010 FOR TECHNICAL SUPPORT CALL: East Coast Datacom, Inc. 245 Gus Hipp Blvd., STE 3 Rockledge, FL 32955 TEL: (800) 240-7948 or (321) 637-9922 FAX: (321) 637-9980 Email: info@ecdata.com Web Address: www.ecdata.com Manufactured By East Coast Datacom, Inc.

  • Page 3: Safety Warning

    PROPRIETARY NOTICE The information contained herein is proprietary to East Coast Datacom, Inc. Any reproduction or redistribution of this publication, in whole or in part, is expressly prohibited unless written authorization is provided by East Coast Datacom, Inc.

  • Page 4: Chapter 1 - Introduction

    (DTE), such as servers or routers for running diagnostics from a remote console. The MSD-4C operates in two primary modes of operation known as Text or Graphics. 1) In Text Mode, the unit will enter switch-time whenever it receives an arming character.

  • Page 5: Theory Of Operation

    ASYNC DATA RATES / CHARACTER The MSD-4C has an internal Dip Switch to on the PCB to set data rates from the internal baud rate switch located at SW-4. The unit supports ASYNC data rates in a range from 1.2k up to 115.2k. The ASYNC character length is set at 8, N, 1 or 10 bit data.

  • Page 6: Sub-Channel Service Modes

    TEXT or GRAPHICS mode of operation. 2.5.1 TEXT MODE In the Text Mode, the MSD-4C will enter switch-time whenever it receives an arming character. It will select the sub-channel that is specified by the channel select ASCII character.

  • Page 7: Rs-232 Serial Port Cables

    DCE(modem type) interfaces for connection to DTE(terminal type) interfaces. The user should use straight through cables for DCE to DTE connection. Since the MSD-4C is an ASYNC device, the user may easily use crossover cables for DCE to DCE connection.

  • Page 8: Chapter 3 - Installation

    Schurter, Inc. Part #'s are: 160ma = 034.3109 and 80ma = 034.3106 POWER CONNECTION Before connecting the MSD-4C to an AC power source the top cover should be installed with the supplied #6-32 screws. AC power is supplied to the MSD-4C through a 2.3m (6.6 ft) cord terminated by a grounded 3-prong plug.

  • Page 9: Default Configuration Switch Settings

    ASCII STRING COMMANDS FOR SWITCHING 3.6.1 TEXT OR GRAPHICS MODE COMMANDS When the user sets the MSD-4C in the Text Mode or Graphic Mode of operation, the user commands issued from a computer to switch between the sub-channel ports are the same for either mode.

  • Page 10: 4.0 - Appendix

    MSD-4C INSTALLATION AND OPERATIONS MANUAL 4.0 - APPENDIX RS-232 DB-25 DCE PORT PIN OUTS(Same All Five Ports) Below is a pin-out chart for the MSD-4C RS-232 DCE port pin-outs. DB-25 Signal Description To DTE To DCE Pin No. Shield (GND)
  • Page 11 MSD-4C INSTALLATION AND OPERATIONS MANUAL CONTROL SIGNAL JUMPERS 1 to 2 Signal ground and chassis gnd are isolated 2 to 3 Signal ground and chassis gnd are connected CD to Port 1 is from Master RTS 1 to 2 2 to 3...
  • Page 12 MSD-4C INSTALLATION AND OPERATIONS MANUAL TEXT MODE ARMING CHARACTOR INFORMATION Page 9...
  • Page 13 MSD-4C INSTALLATION AND OPERATIONS MANUAL GRAPHICS MODE ARMING CHARACTOR INFORMATION Page 10...
  • Page 14 Width ..17.00 inches (43.18 cm) Data Rates Length ..9.00 inches (22.86 cm) 1.2k, 2.4k, 4.8k, 9.6k, 19.2k, 38.4k, 76.8k, 115.2k Weight MSD-4C ..4.5 pounds (2.1 Kg) Modes of Operation Text or Graphics Warranty Three Years, Return To Factory Anti-Streaming Automatic .

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