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Audio/Video Switchers • RS-232/Remote Control
RS-232/Remote Control, cont’d
Audio/Video Switchers
A
Appendix A
Specifications
Accessories and Part Numbers
Specifications
Included Parts
Accessories
Cables
4-8
Shorting the contact closure pin to override the front
panel selection will work for all inputs on non auto-
switching models. On auto-switching models, only the
contact closure pins for inputs 2 through 6 can be
shorted in this fashion. If pin 1 is connected to ground
for an extended period on an auto-switch model, input 1
is not selected. Rather, the LEDs alternately display the
previously selected input and blink the current front
panel mode.
Infrared Remote Control
The optional Extron IR 20 Universal SYS 4/8/10/AV consists of
the following components:
• System remote (hand-held remote control)
• IR detector with 6’ cable and RJ-11 connector
•IR-20 SYS 4/AV switcher remote adapter with 3’ cable and
RS-232 T connector
• External 9 VDC adapter power supply
Install and operate the remote control in accordance with IR 20
User’s Guide (part #68-200-01) included with the remote.