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DVI outputs
MX8x8DVI-
Pro provides 24 pole "digital only” DVI-D connectors for output connections. As standard DVI outputs, there can be used limited length cables, since there is no output amplification applied. For using longer cable runs at outputs, use fiber optical DVI cables or active DVI repeaters/extenders.
Fiber Cable powering
As a special feature MX8x8DVI-Pro on DDC +5V output (pin 14 on output connectors) is able to supply 500 mA current to power fiber optical DVI cables. Standard DVI outputs or
VGA cards supply only 55 mA current on +5V output, thus unable to power directly a fiber optical cable.
Info: MX8x8DVI-Pro does not check if the connected sink (monitor, projector or other equipment) supports Hotplug or EDID signals but outputs the selected signal immediately after switch command.
2.3.2. RS-232/RS-422 control port
Devices can be remote controlled through industry standard 9 pin D-SUB female connector located on the rear panel of the unit. Please use a standard RS-232 Male to Female cable
(straight through).
Info: M8x8DVI-Pro can be ordered with either RS-232 or RS-422 communication port. The port settings are done in the factory.
5 1
Pin nr.
1
2
3
7
8
9
4
5
6
9 6
Figure 2-2. D-SUB 9 pin female (DE9F) connector
RS-232
NC, not connected
TX data transmit (output)
RX data receive (input)
RS-422
TX- data transmit complement
TX+ data transmit true
RX+ data receive true
DTR (internally connected to Pin 6) RX- data receive complement
GND signal ground (shield)
GND signal ground (shield)
DSR (internally connected to Pin 4) NC non connected
RTS (internally connected to Pin 8) NC non connected
CTS (internally connected to Pin 7) NC non connected
NC, not connected NC non connected
Table 2-3. D-sub connector pin assignment
RS-232 port settings:
9600 Baud, 8 data bit, 1 stop bit, no parity
Page 12 / 49 Section 2. Controls and connections
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