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Installation, cont'd
4
5
6
7
8
9
2-4
MSG Matrix Switchers • Installation
RS-232/RS-422/RS-485 connector — A 5-pole captive screw connector for
input from a computer or third-party controller using Serial Control Protocol
commands or control software for Windows
Rx+
Rx-
Tx+
Tx-
Gnd
RS-232/422/485
5-pole captive screw connector/socket
Serial Port
RX+
RX-
RS-232
TX+
Connection
TX-
GND
RX+
RS-422/485
RX-
Full Duplex
TX+
TX-
Connection
GND
RX+
RS-485
RX-
Half Duplex
TX+
TX-
Connection
GND
Serial control setting DIP switch — Allows the switcher to be configured to
accept RS-232 (all switches up) or RS-422/RS-485 (all switches down)
communication standard.
DIP switch settings change according to the standard used. Higher standards
require a different signal type. DIP switch settings make subtle adjustments to
signal type. See chapter 5 - Remote Control for additional information.
AC power — Standard AC power connector for a power source of
100 – 240VAC, operating at 50/60 Hz.
AC Fuseholder — Remove this to change out the AC fuse.
Audio output group — Four (MSG0804) or eight (MSG0808), 5-pole captive
screw connector for balanced/unbalanced stereo audio output from the audio
input. See Audio input and output in this chapter.
Audio input group — Eight, 5-pole captive screw connector for balanced/
unbalanced stereo audio input.
Pay special attention to the right channel wiring. The + and – layout
differs from most other Extron products.
®
to remotely control the switcher.
Rx+
Rx-
Tx+
Tx-
Gnd
DB9 Pinout (Female)
To control equipment
Switcher
Computer
DB-9 Serial Connector
3
2
5
2
6
3
7
5
1
2
6
3
7
5
1
RS-232
1 2 3
RS-422/RS-485
5
1
9
6
TX
RX
GND
TX+
TX-
RX+
RX-
GND
GND
TX+
TX-
RX+
RX-
GND
GND
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