Extron Electronics SW AV Series User Guide - Manual (Page 36)

Remote Control, cont’d
SW AV Series Switchers • Remote Control 4-2
Remote Control
The SW AV Series switchers can be remotely controlled via the switcher’s rear
panel Remote (SW 4 and SW 6 models) or RS-232 (SW 8 or SW 12 models)
connector (Figure 4-1). Remote control devices can be:
• A host device such as a computer or third-party control system
• A device such as an Extron IR 102 Universal remote control kit
• A contact closure device such as an Extron KP 6 Keypad Control
Pin RS-232 Contact closure Function
1 — In#1 * Input #1 *
2 TX
—
— Transmit data (-)
3 RX Receive data (+)
4 — In#2 * Input #2 *
5 Gnd Gnd Signal ground
6 — In#3 *
In#4 *
In#5 †
* SW 4 and SW 6 models only
† SW 6 models only
In#6 †
Input #3 *
Input #6 †
Input #4 *
Input #5 † 7 —
8 —
9 —
5 1
9 6
Female
5
9
Male
1
6
Figure 4-1 — Remote connector pinout
Two or three remote control methods are available:
• Extron’s Simple Instruction Set
• Extron’s Windows-based control program
• SWS 4 and SW 6 models only , contact closure
The cable used to connect the RS-232/Remote port to a computer, control
system, contact closure device, or IR control kit may need to be modified by
removing pins or cutting wires. If unneeded pins are connected, the switcher
may hang up.
For RS-232 control and IR control , use a control cable with only pins 2, 3, and 5
connected. Otherwise, either cut the wires to the other pins in hard-shelled
connectors or remove the unneeded pins from molded plugs. See chapter 4, Remote
Control, for definitions of the SIS commands and details on how to install and use
the control software.
For contact closure , use a control cable with pins 2 and 3 not connected.
Otherwise, either cut the wires to these pins in hard-shelled connectors or remove
these pins from molded plugs. See chapter 4, Remote Control, for information on
how to make a remote contact closure device.
Simple Instruction Set Control
Host-to-switcher communications
SIS commands consist of one or more characters per field. No special characters
are required to begin or end a command character sequence. When a command is
valid, the switcher executes the command and sends a response to the host device.
All responses from the switcher to the host end with a carriage return and a line
feed (CR/LF =
), which signals the end of the response character string. A string
is one or more characters.