Extron electronics Matrix 3200 Series User Manual page 34

Serial Communications Port
___ The Matrix Video Switcher is normally configured for RS-232 control. If it is to be
4-1
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.
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
1 – not used
2 Tx Transmit Data
3 Rx Receive Data
4 – not used
5 Gnd Signal Ground
6 – not used
7 – not used
8 – not used
9 – 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.
6
9
Male
Connector
To Host
System/Device
Serial Port
Figure 4-1.A Matrix Video Switcher RS-232/RS-422 to Host connection.
Chapter 4 • Programmer's Guide
RS-422 Description
Tx(-)
Tx(+)
Rx(+)
Rx(-)
Gnd
–
–
–
–
A B M
E
B
C 4
D
A D
E D R
E S
S
A
B
C
D
IN P
E
U T
S
A N
A H
M A E IM
D E
, C
IN A
U S
A
IN
O U
T
A C IN
P O
F U W E
S E R IN
: 25
P U IN
0V T
5. 0A
T T
1
5
1 -
8
9 -
1 6
1 7
- 2
Extron • Matrix 3200/6400 Series • User's Manual
Transmit Data (-)
Transmit Data (+)
Receive Data (+)
Receive Data (-)
Ground
not used
not used
not used
not used
1
6
9
5
Female
Connector
O U
T P
U T
S
4
2 5
- 3
2
3 3
- 4
0
4 1
- 4
8
4 9
- 5
6
5 7
- 6
4