East Coast Datacom MSD-4C Operation Manual

Manual is about: 4-Port RS-232 CODE OPERATED SWITCH

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TABLE OF CONTENTS

Page 7

4.0 - APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 6

3.6 ASCII STRING COMMANDS FOR SWITCHING . . . . . . . . . . . . . . . .

Page 6

3.5 MODEM (DCE) AND TERMINAL (DTE) CONNECTION . . . . . . . . . .

Page 6

3.4 DEFAULT CONFIGURATION SWITCH SETTINGS . . . . . . . . . . . . .

Page 5

3.3 POWER CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 5

3.2 VOLTAGE SELECTION FUSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 5

3.1 VOLTAGE SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 5

CHAPTER 3 - INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Page 4

2.7 RS-232 SERIAL PORT CABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 3

2.6 ANTI-STREAMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 3

2.5 SUB-CHANNEL SERVICE MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 2

2.4 RS-232 ASYNC ELECTRICAL INTERFACE . . . . . . . . . . . . . . . . . . . .

Page 2

2.3 ASYNC DATA RATES/CHARACTOR . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 2

2.2 REAR PANEL CONNECTORS AND FUSES

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Page 2

2.1 FRONT PANEL INDICATORS AND SWITCHES . . . . . . . . . . . . . . . .

Page 2

CHAPTER 2 - BASIC OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 2

1.2 THEORY OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 1

1.1 FUNCTIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 1

CHAPTER 1 - INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MSD-4C INSTALLATION AND OPERATIONS MANUAL

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Summary of MSD-4C

Page 1
Table of contents page 7 4.0 - appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6 3.6 ascii string commands for switching . . . . . . . . . . . . . . . . Page 6 3.5 modem (dce) and terminal (dte) connection . . . . . . . . . . ...
Page 2: Operations Manual
Operations manual 4-port rs-232 code operated switch msd-4c november 1, 2010 manufactured by : east coast datacom, inc. Document number 201010 rev- 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-...
Page 3
Safety warning always observe standard safety precautions during installation, operation and maintenance of this product. To avoid the possibility of electrical shock, be sure to disconnect the power cord from the power source before you remove the iec power fuses or perform any repairs. Proprietary...
Page 4
Chapter 1 - introduction 1.1 functional description the msd-4c is an asynchronous code-operated switch that has five rs-232 serial ports consisting of a master port and four sub-channel ports. The user will enter an ascii command from a computer that is transmitted over the master port to the units ...
Page 5
Located on the back or rear of the product you will find an iec power receptacle. The supplied power cord plugs into this receptacle. This receptacle also contains a fuse drawer. Two (2) fuses are located in this compartment. For 110 vac +/- 10% operation the unit is equipped with slow blow 160ma fu...
Page 6
Dte(terminal type) equipment. Refer to the interface chart in the appendix for detailed interface information. 2.5 sub-channel service modes the msd-4c unit incorporates circuitry that enables the user to provide two separate modes of dte sub-channel access servicing. Either mode of operation is sel...
Page 7
2.7 rs-232 serial port cables the five async rs-232 female db-25 sub-channel ports are configured as 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 ea...
Page 8
Power connection figure 3-1 chapter 3 - installation 3.1 voltage selection it is very important to check that the unit is set to the correct voltage setting for your application before applying ac power. Located on the rear of the unit you will find a rotary 110/220 vac switch. Using a coin or small...
Page 9
3.4 configuration switch settings the msd-4c is configured prior to shipping with the dip switches set as follows: 1) anti-streaming - disabled 2) text / graphics - text mode 3) frame / signal ground - not connected 4) control signals - passed straight 5) data rate - 9.6k if your system application ...
Page 10
4.0 - appendix 4.1 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. X data terminal ready (dtr) 20 x data carrier detector (dcd) 8 --- --- signal ground (sg) 7 x data set ready (dsr) 6 x clear to send (cts) 5 x request to send (rts...
Page 11
Control signal jumpers cts to master is forced on 2 to 3 cts to master is from selected port's rts 1 to 2 j11 cd to master is forced on 2 to 3 cd to master is from selected port's rts 1 to 2 j10 cts to port 4 is forced 2 to 3 cts to port 4 is from master dtr 1 to 2 j9 cts to port 4 is forced 2 to 3 ...
Page 12
Text mode arming charactor information msd-4c installation and operations manual page 9.
Page 13
Graphics mode arming charactor information msd-4c installation and operations manual page 10
Page 14
Application code-operated switch allowing a user from a computer to issue an ascii code to switch the data path routing data from the master port to one of four sub-channel ports. Capacity one to four rs-232 async devices interface eia rs-232, ccitt v.24 using db-25 female connectors, +/- 15kv esd p...