4. Installation
MX2-HDMI20 series – User's Manual
32
Applied firmware package: v1.7.0 | LDC software: v2.5.1b5
4.2.
Electrical Connections
4.2.1.
HDMI Connector
The matrix switchers are assembled with standard 19-pole HDMI connector for input or output.
The outputs are able to supply 500 mA current on DDC +5V output (pin 18) which is sufficient
to supply power to certain devices (e.g. DA2-HDMI-4K-Plus-A).
4.2.2.
DisplayPort Connector
DIFFERENCE:
Certain models provide standard 20-pole DisplayPort connector for input or
output. See the details in the
table.
DisplayPort ports are capable of providing about 1.5 W (500 mA @ 3.3V) power on the DP_PWR
pin. Always use high quality DP cable for connecting DisplayPort devices!
4.2.3.
Symmetrical Analog Stereo Audio
DIFFERENCE:
Certain models use this connector as an analog audio input or output. See
table.
5-pole Phoenix connector is used for balanced analog audio (line in/out). Unbalanced audio
signals can be connected as well. For asymmetrical output, connect only + and ground. For
asymmetrical input c and ground to the source and connect – to the ground.
Compatible Plug Type
Phoenix
®
Combicon series (3.5mm pitch), type: MC 1.5/5-ST-3.5.
See more information about the most common audio cable wiring modes in
section.
Pin nr.
Signal
1
Left +
2
Left -
3
Ground
4
Right -
5
Right +
4.2.4.
RS-232 Port
3-pole Phoenix Connector
DIFFERENCE:
Certain models are supplied with 3-pole Phoenix connector for RS-232
communication.
Compatible Plug Type
Phoenix
®
Combicon series (3.5mm pitch, 3-pole), type: MC 1.5/3-ST-3.5.
D-SUB Connector
DIFFERENCE:
The
-R
suffixed models have female D-SUB connector for
RS-232 data communication.
D-SUB connector pin assignment for standard RS-232
Pin nr.
Pinout
1
NC - non-connected
2
TX data transmit (output)
3
RX data receive (input)
4
DTR (Internally connected to Pin 6)
5
GND signal ground (shield)
6
DSR (Internally connected to Pin 4)
7
RTS (Internally connected to Pin 8)
8
CTS (Internally connected to Pin 7)
9
NC - non-connected
INFO: MX2-HDMI20 series matrix switchers are DCE unit according to its pin-out. For more information
see
section.
Factory default settings of the serial port: RS-232 enabled; 57600 Baud, Protocol: LW3.
Pin nr.
Signal
1
Ground
2
Tx data
3
Rx data