Black Box XR 8 x 8 HDMI Matrix Switch with Audio, AVSW-HDMI8X8-X RS-232 Serial Interface, Page

Chapter 7: RS-232 Serial Interface

7. RS-232 Serial Interface

Connect a PC or Control System Version Compatible V2.0

For a complete list of commands, refer to the extended RS-232 Protocol Instruction Manual.

Figure 7-1. RS-232 DB9 connector.

Table 7-1. RS-232 serial interface pinouts.

Pin	RS-232	Definition
1	----	Not used
2	TX	Transmitter
3	RX	Receiver
4	----	Not used
5	GND	Ground
6	----	Not used
7	----	Not used
8	-----	Not used
9	----	Not used

RS-232 Protocol Commands

You can control the switch via the RS-232 serial control port to interface to a PC or similar third-party control system.

The serial communication parameters are 9600 baud, 8 bit, no parity, and 1 stop bit. This is often referred to as 9600 8N1. When the unit recognizes a complete command, it will perform the requested action. There is no delimiter character required.

0 = the number

O = the letter

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