Extron electronics ISM 824 User Manual page 78

SIS Programming and Control
™
RS-232/RS-422 Link
The switcher's rear panel Remote 9-pin D female connector (figure 4-1) can be
connected to the RS-232/RS-422 serial port output of a host device such as a
computer running the HyperTerminal utility or a control system. This connection
makes software control of the switcher possible.
Pin RS-232
1
2
3
4
5 Gnd
6
7
8
9
Figure 4-1 — Remote connector pin arrangement
The protocol is 9600 baud, 8-bit, 1 stop bit, no parity, and no flow control.
Front Panel Configuration Port
N This port is hardwired for RS-232 only.
N This port is independent of the rear panel RS-232/RS-422 port. A front panel
The optional 9-pin D to 2.5 mm mini jack TRS RS-232 cable, part #70-335-01
(figure 4-2) can be used for connection to the Configuration port.
Figure 4-2 — Optional 9-pin TRS RS-232 cable
4-2 ISM 824 Integration Scaling Multiswitcher • SIS
Function
RS-422
— Not used —
TX Transmit data
TX
RX Receive data
RX
— Not used
—
Signal ground
Gnd
— Not used —
— Not used
RX+
— Not used
TX+
— Not used
—
Configuration port connection and a rear panel RS-232/RS-422 port connection
can both be active at the same time.
1
6
9
5
9-pin D Connection
Pin 2 Computer's RX line
Pin 3 Computer's TX line
Pin 5 Computer's signal ground
Function
5
Not used
Transmit data (-)
Receive data (-)
9
Not used
Female
Signal ground
1
Not used
Receive data (+)
Transmit data (+)
6
Not used
6 feet
(1.8 m)
Part #70-335-01
TRS Plug
Tip
Ring
Sleeve
Programming and Control
™
1
6
5
9
Male
Tip
Ring
Sleeve (Gnd)