Extron Electronics ISM 824 - Manual (Page 88)

ISM 824 Integration Scaling Multiswitcher • SIS ™ Programming and Control 4-2
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.
RS-232 Function Pin
1
2
3
4
5
6
7
8
9
—
TX
RX
—
Gnd
—
—
—
—
Not used
Transmit data
Receive data
Not used
Signal ground
Not used
Not used
Not used
Not used
5 1
9
5
9
6
Female
Male
1
6
RS-422 Function
TX
RX
—
Gnd
—
RX+
TX+
—
Not used
Transmit data (-)
Receive data (-)
Not used
Signal ground
Not used
Receive data (+)
Transmit data (+)
Not used
—
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
Configuration port connection and a rear panel RS-232/RS-422 port connection
can both be active at the same time.
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.
6 feet
(1.8 m)
Part #70-335-01
5
1
9
6
Sleeve (Gnd)
Ring
Tip
9-pin D Connection TRS Plug
Pin 2 Computer's RX line Tip
Pin 3 Computer's TX line Ring
Pin 5 Computer's signal ground Sleeve
Figure 4-2 — Optional 9-pin TRS RS-232 cable