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SW RGB and YUV A Switchers • Remote Control4-2
Remote Control
The SW RGB and SW YUV A Series switchers can be remotely controlled via the
switcher’s rear panel Remote connector (figure 4-1). Remote control devices can
be:
• A host device (such as a computer or control system)
• An IR 102 Universal remote control kit
• A contact closure device such as an Extron KP 6 Keypad Control or a locally-
constructed device.
Three remote control methods are available:
• Extron’s Simple Instruction Set
• Extron’s Windows-based control program
• Contact closure
Pin RS-232 Contact closure Function
1 — In #1 Input #1
2TX
—
— Transmit data (-)
3 RX Receive data (+)
4 — In #2 Input #2
5 Gnd Gnd Signal ground
6 — In #3
In #4
In #5
In #6
Input #3
Input #6
Input #4
Input #5
7—
8—
9—
Female
51
96
Male
15
69
Figure 4-1 — Remote connector pinout
The RS-232 protocol of the rear panel RS-232/Remote connector is a follows:
• 9600 baud • No parity
• 1 stop bit • No flow control
The cable used to connect the 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 Simple Instruction
Set, for definitions of the SIS commands and Windows-Based Control Program 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 Contact Closure, for information on how to make
a remote contact closure device.
Simple Instruction Set
Host-to-switcher instructions
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.