Extron electronic MTP SW6 Remote Control, Simple Instruction Set Control, Symbol definitions

Remote Control

The switcher can be remotely controlled via its rear panel Remote connector (Figure 3-1). Remote control devices can be:

•A host device such as a computer or 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

			Contact
	PIN	RS-232	Closure	Function
	1	—	In #1	Input #1
REMOTE	2	TX	—	Transmit data
	3	RX	—	Receive data
	4	—	In #2	Input #2
	5	Gnd	Gnd	Ground
	6	—	In #3	Input #3
	7	—	In #4	Input #4
	8	—	In #5	Input #5
	9	—	In #6	Input #6

Simple Instruction Set™ Control

Host-to-interface 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 unit executes the command and sends a response to the host device. All responses from the unit 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.

Symbol definitions

Symbols (variables), defined on the next page, are used throughout the "Unit-initiated messages" section and the command/response table on page 3-6.The symbols represent variables in the unit-initiated messages and the command/ response table fields.

Figure 3-1 — Remote connector pinout

Three remote control methods are available:

•Extron’s Simple Instruction Set

•Extron’s Windows-based control program

•Contact closure

NThe 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, Windows-based program, 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 Control™", beginning on the next page, for definitions of the SIS commands. See "Windows®-Based Program Control", beginning on page 3-15, for details on how to install and use the control software.

For contact closure, use a control cable with pins 2 and 3 disconnected. Otherwise, either cut the wires to these pins in hard-shelled connectors or remove these pins from molded plugs. See "Contact Closure Control", beginning on page 3-18, for information on how to make a remote contact closure device.

] = CR/LF (carriage return/line feed)

•= space X! = Input

X@ = Input level range X# = Input peaking range X$ = Threshold

X% = Skew adjustment range

X^ = Video plane

X&	= RS-232 insert status
X*	= Audio/RS-232 wire pair input type
X(	= Audio gain
X1)	= Numeric dB value
X1!	= Audio attenuation
X1@	= Volume adjustment range
X1#	= Mute, Front panel lock
X1$	= Switch mode
X1%	= Firmware version

1 – 6

0 – 255

0 – 65

0 = outside of threshold

1 = within threshold

00 – 31 (each step = 2ns)

0 = red

1 = green

2 = blue

0 = disabled

1 = enabled

0 = audio

1 = RS-232

0 – 24 (1 dB/step)

–18 to +24 (45 steps of gain or attenuation) (Default = 0 dB)

1 – 18 (1 dB/step)

0 – 100

0 = off

1 = on

1 = normal (manual)

2 = auto

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3-2 MTP SW6 • Remote Control MTP SW6 • Remote Control 3-3