Clare Controls CM-MT8810-BT-70, User Manual, Page: 10 / 40

4 HDBaseT 8x8 Matrix Switcher User Guide
h. HDBaseT : Works with receivers using HDBaseT technology, such as
the HDMI twisted pair receiver and the HDMI POC twisted pair receiver.
It can pass through AV, IR, and RS232 signals to 70 meters. It can also
provide power for the receivers that support PoC.
(3) RS232 The serial port for unit control, 9-pin female connector, connects with
control device such as a PC.
(4) IR ALL IN IR control signal input port, connect with IR receiver, pass through to all
the HDBaseT ports to control remote devices.
(5) TCP/IP TCP/IP port for unit control.
(6) IR EYE Connect with the extended IR receiver. Use the IR remote to control the
switcher.
(7) Power Press the button to power the switcher. The indicator turns red and
remains on when power is on.
(8) Power supply Connect with 110 to 240 VAC power adapter.
(9) GROUND Connect to ground.
Connecting with the RS232 communication port
You can control the switcher from the front panel, IR, or RS232. RS232 control is
via the rear RS232 communication port. It is a female 9-pin D connector. The pin
definitions are listed in the table below.
Table 1: RS232 connection definitions
No. Pin Function
1 N/u Unused
2 Tx Transmit
3 Rx Receive
4 N/u Unused
5 Gnd Ground
6 N/u Unused
7 N/u Unused
8 N/u Unused
9 N/u Unused