Extron-electronics MSG0808 User Manual download pdf (Page 32)

Remote Control

MSG Matrix Switchers • Remote Control

5-2

Remote Control Port (RS-232/RS-422/RS-485)

The MSG Matrix Switcher RS-232/RS-422/RS-485 port connector is used to

connect to a host or external controlling device, such as a computer or

control system, which can generate the proper command codes and

recognize the switcher’s responses.

The RS-232/RS-422/RS-485 connector is a 5-pole, captive screw connector

(see illustration above) with the following pin designations:

The default serial protocol is 9600 baud, 8-bit, 1 stop bit, no parity, and no

flow control.

Commands and responses for programming the MSG Matrix Switcher from

a host system connected to the RS-232/RS-422/RS-485 port are listed on the

following pages.

Dip Switch Settings

Use the DIP switch bank in the back of the MSG switcher to configure the

serial ports to operate as an RS-232 (factory default-all switches up) or

RS-422/RS-485 (all switches down) interface. DIP switch settings change

according to the standard used. Configure the DIP switch according to

your requirements, based on the table below.

DB9 Pinout (Female)

To control equipment

Rx+

Rx-

Tx+

Tx-

Gnd

Rx+

Rx-

Tx+

Tx-

Gnd

RS-232/422/485

5-pole captive screw connector/socket

RS-232

RS-422/RS-485

123

RX+

RX-

TX+

TX-

GND

RX+

TX+

RX-

TX-

RX-

TX+

RX+

GND

Switcher

Serial Port

Computer

DB-9 Serial Connector

RS-232

Connection

RS-422/485

Full Duplex

Connection

RS-485

Half Duplex

Connection

RX+

TX+

RX-

TX-

TX+

RX+

GND

TX-

RX-

ON (1)(Down)

OFF (0)(Up-Default)

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Extron-electronics MSG0808 User Manual Page 32

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