Manual
5
3.2 Communication ports and connection methods
HDMI matrix provides 1-CH standard RS-232 input and output port, as well as 1-CH RJ45
Ethernet control port (optional). Besides operating on front key panel, user can also operate from
various control systems (such as PC, control systems provided by other manufacturers and so on),
or conduct remote control through Ethernet or remote controller.
3.2. RS-232 control port
This series of products provide 2 serial ports: RS-232 input and output port. Input port should
be connected to computer and output port is cascaded to control other matrix hosts. RS-232 input
port is a 9-pin female joint and their pins are described as follow:
3.2.2 Connection to computer
Connect the serial communication port of computer (COM1 or COM2) to RS-232 input port of
HDMI matrix host with a RS-232 cable. After installing app, user can control HDMI matrix from
computer by attached app or customized control software.
3.2.3 Ethernet interface of HDMI Matrix (optional)
HDMI matrix can be connected to Ethernet adaptor in two ways:
1
）
Cross-connection
HDMI matrix and control computer is connected by a CAT-5 cross Ethernet cable.
2
）
Straight-through connection
HDMI matrix is connected by a CAT-5 straight-through Ethernet cable to Ethernet switch or
concentrator.
Pin
Signal
Description
1
-
-
2
TXD
Compatible with RS-232 protocol
for sending data
3
RXD
Compatible with RS-232 protocol
for data reception
4
-
-
5
GND
Signal earth
6
-
-
7
-
-
8
-
-
9
-
-
