Video Products SM-4X2-HDMI-LC Remote Control, RS-232 Protocol Pin Definition, CHMX-42

4.3Remote Control

1.Power:

Press the button to turn on/off the unit.

2.Input Select for HDMI OUT A:

Press 1, 2, 3 or 4 to select the desired input source for

HDMI OUT A.

3.Input Select for HDMI OUT B:

Press 1, 2, 3 or 4 to select the desired input source for

HDMI OUT B.

4.Void buttons (No function).

4.4RS-232 Protocol

4.4.1Pin Definition

POWER

OUTPUT

A

OUTPUT

B

OUTPUT

C

OUTPUT

D

CR-33

1

2

3

4

	CHMX-42			Remote Control Console
PIN		Definition		PIN	Definition
1		NC		1	NC
2		Tx		2	Rx
3		Rx		3	Tx
4		NC		4	NC
5		GND		5	GND
6		NC		6	NC
7		NC		7	NC
8		NC		8	NC
9		NC		9	NC

*RS-232 transmission format: Baud Rate: 9600 bps Data bit: 8 Bits

Parity: None

Stop Bit: 1 bit

3