Extron electronic 3200 Series manual Serial Communications Port, Pin RS-232 Description RS-422

Chapter 4 • Programmer’s Guide

Serial Communications Port

If the Matrix Video Switcher is the Master BME (BME #0), its RS-232/RS-422 connector may be connected to the serial port output of a Host device such as a computer or control panel. Software control of the switcher is made possible by this connection. A Host serial port connection to the RS-232/RS-422 connector of a Matrix Video Switcher is shown in Figure 4-1.A.

___ The Matrix Video Switcher is normally configured for RS-232 control. If it is to be used with an RS-422 device, an internal cable must be moved. The procedure for moving the cable begins on Page 5-1.

The RS-232/422 connector on the Matrix Video Switcher is a 9-pin D female with the following pin assignments:

Pin	RS-232	Description	RS-422	Description
1	–	not used	Tx(-)	Transmit Data (-)
2	Tx	Transmit Data	Tx(+)	Transmit Data (+)
3	Rx	Receive Data	Rx(+)	Receive Data (+)
4	–	not used	Rx(-)	Receive Data (-)
5	Gnd	Signal Ground	Gnd	Ground
6	–	not used	–	not used
7	–	not used	–	not used
8	–	not used	–	not used
9	–	not used	–	not used

The protocol is 9600 baud, 8-bit, 1 stop bit, no parity and no Flow control.

Details for programming the Matrix Video Switcher from a Host system connected to the RS-232/RS-422 port are covered in this chapter.

1

6

5

9

	A			BME
	B
	C			4
	D			ADDRESS
	A
	E		COMM.
	B
	D		MKP
	C			INPU
	E
				TS
				AN
				MAAHEI
				DEINM,CA
	IN			USA
			BMECOMM.
	ACP
	OUT
	FUS	OWE	R IN
	E:2
		50V 5.0PUT
			ATT
				50/60Hz
				0.5A MAX
				100-240V
6	1
9	5
	Male
Connector

To Host

System/Device

Serial Port

IN

IN

1 -8

9-16

Female

Connector

OUTPUTS

17-24 25-32 33-4 0 41-48 49-56 57-6 4

Figure 4-1.A Matrix Video Switcher RS-232/RS-422 to Host connection.

4-1 Extron • Matrix 3200/6400 Series • User’s Manual