User manual
User Manual for DVI/Stereo-Audio Matrix COMM-TEC MTX Series
COMM-TEC GMBH www.comm-tec.de
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3.4 RS-232 Connection
All functions of the MTX units can be controlled with external controllers like computers or third party controllers
(e.g. AMX). A serial controller is any device that is connected to the standard RS-232 serial port (9pin SubD
female) on the rear panel and that can send and receive ASCII character format.
The port settings are:
Connect serial controllers refering to the table below for RS-232 cable connector pin mapping:
4. Operation
The DVI matrix switcher can be controlled by the front control panel, infrared remote controller, Ethernet control
(optional), and the RS-232 communication port.
4.1 Front Panel Operation
Using the front control panel, the switcher can be controlled directly by pressing the buttons using this format:
“Input Channel” + “Switching Mode” + “Output Channel” + “End” + “Enter”
Example 1： Transfer video and audio signals from input channel 1 to output channels 3 and 4
1. Press the button for input channel number “1”.
Display feedback on LCD: “1”
2. Press the button for switching mode “AV”.
Display feedback on LCD: “B” (“B” for both audio and
video, “A” for audio only; “V” for video only).
3. Press the button for the first output channel
number”3”.
Display feedback on LCD: “3”
4. Press the break button “/”.
Display feedback on LCD: “,”
5. Press the button for the second output channel
number “4”.
Display feedback on LCD: “4”
Pin-#. at UP-1280SU
RS-232 Port
Description
Pin-# at PC
RS-232 Port
Description
2 Tx Transmit 2 Rx Receive
3 Rx Receive 3 Tx Transmit
5 Gnd Ground 5 Gnd Ground
BAUD 9600
Data Bits 8
Stop Bit 1
Parity NONE
1342
AV Au dioVideo
342
0END/
342
Input Command
：
1
Input Command
：
1B
Input Command
：
1B3
Input Command
：
1B3
，
Input Command
：
1B3 4
，