Mirage WQ-L User Manual
63
020-101372-01 Rev. 1 (04-2014)
Serial Communication
This document describes the serial communication protocol, consisting of ASCII text messages,
used to control a Matrix StIM / SIM WQ projector remotely.
Connection and Use
Once you have connected your computer to either the RS232 IN or RS422 IN port (depending on
which standard is supported by your computer) or to the Ethernet port on a projector, you can
remotely access projector controls and image setups, issue commands or queries, and receive
replies. Use these bi-directional messages to:
• Control multiple projectors
• Obtain a projector’s status report
• Diagnose performance problems
RS422 Port
Message Formats
• Set: A command to set a projector parameter at a specific level, such as changing to a certain
input.
• Request: A request for information, such as what input is currently in use.
i
For all cable requirements and other connection details, see
Some commands are operational only when projector is powered On.
RS422 Pins
Pin #
Signal
Direction
Pin 1
DNC
N/A
Pin 2
RXD-
IN
Pin 3
TXD-
OUT
Pin 4
RXD+
IN
Pin 5
TXD+
OUT
Pin 6
DNC
N/A
Pin 7
GND
N/A
Pin 8
NC
N/A
Pin 9
+12V (500mA)
OUT
