Extron Electronics IN1502 Setup Guide - Manual (Page 22)

Refer also to the IN1502 User’s Manual at www.extron.com.
Remote control port setup
The IN1502 can be remotely controlled via a host computer
or other device (such as a control system) attached to the rear
panel RS-232 9-pin D female connector. RS-232 protocol for this
connection is:
9600 baud • no parity •
1 Stop bit • no flow control •
The control device (host) can use the Extron Simple Instruction
Set (SIS) commands. See Chapter 3 "Serial Communications",
of the IN1502 User's Manual for complete information on serial
control.
The serial connector also provides a way to select an input
using a remote contact closure device. The connector has the
following pin assignments:
Pin RS-232 function Description
1 – No connection
2 Tx Transmit data
3 Rx Receive data
4 Input #1 Contact closure
5 Gnd Signal ground
6 Input #2 Contact closure
7 – No connection
8 – No connection
9 Hardwired IR IR input
Contact closure control uses pins not used by the RS-232
interface. To select an input using a contact closure device,
momentarily short the pin for the desired input to ground
(pin 5). To force one of the inputs to always be selected, leave
the short in place.
N The short overrides front panel input selections.
DB9 Pin Locations
Female
5 1
9 6
IN1502 • Switcher Software
Switcher Software
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