User Manual for DVI/Stereo-Audio Matrix
COMM-TEC MTX Series
COMM-TEC GMBH
www.comm-tec.de
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2.4 Back Panel
Back panel 8 x 8 with Audio
Depending on the model of the matrix, the video signal I/O interface is made up of 8 or 16 DVI-D female
terminals. Audio signal I/O terminals are made up of 8 or 16 5pin captive screw terminals for each channel (left
& right together). The channel numbers of the signal I/O terminals start from channel 1 to the maximum number
of channels depending on the model. The left audio channel is indicated with L +/-, the right channel with R +/-.
Common ground is connected to the middle pin (grounding sign).
The MTX matrix switchers have an internal power supply with IEC female connector for power cord. There is a
9pin Sub D female connector for RS-232 port. An RJ-11 port (AUX Control) is for future expansion.
3. Installation
3.1 Hardware Installation
The MTX matrix switchers are rack-mountable using the holes in the front panel. Take a set of standard rack
screws and secure the unit into the rack. For ideal performance and easy wiring access it is advisable in a 19“
rack leave at least 1ru space above and below. Do not place high heat-producing equipment directly above or
below the enclosure.
3.2
DVI Connection
Use good quality DVI-D cable for all video connections. Switch off all units while connecting sources and
destinations.
The DA MTX matrix switchers support DVIComputer Video signal sources. If the device doesn’t have DVIoutput
signal, use a VGA to DVI adapter cable or converter.
3.3
Audio Connection
RGBHV Matrix switchers with audio come with terminal block connectors (captive screw terminals connectors)
located under the BNC connectors. There are two types of audio signals: balanced or unbalanced. Balanced
audio cables carry two signals per channel and ground while unbalanced audio cables only use one signal per
channel and a common ground. Both signal types can be connected to the RA MTX series.
