Smart Avi HDTV Router - Manual (Page 18)

Chapter 5: Communication Protocol
The command to make the end of CAT5 line receiver (SLRX-RX300) switch between its local and remote sources is
as follows;
<0xBE><0xEF><Frame Address><Reserved><CMD><DATA BYTES><BCC>
Where;
<0xBE>
always 0xBE
<0xEF> always 0xEF
<Frame Address> Frame address. Set by Hex switch on unit or position in Rack frame.
<RESERVED>
always 0x00
<CMD> 50 (0x32)
<DATABYTES> is Two bytes <DESTINATION><SOURCE> 0L = Receiver LOCAL Video/Audio, 1 = Receiver
REMOTE Video/Audio
<BCC>
So if switching the Receiver on output 3 of Frame 2 to its local source send
<0xBE><0xEF><0x02><0x00><0x32><0x02><x00><0x63>
Get System Information
Cmd = 0xff
Databytes = NULL (none)
Unit will return a valid PSU as detailed above where Databytes are as follows
<product type>, <switch configuration> , <version>
Where Product Type =
1 Byte;
0 = SmartNet V
1 = SmartNet X
3 = SLX-TX550
4 = SLX-RX300
Where Switch configuration =
2 Bytes;
<inputs><outputs>
Where Version =
3 bytes
<Version><issue><release>
Appendix A: RS232/422 Converter and Comms Cable
RS232/RS422 Converter
A suitable RS232/RS422 product can be purchased from KK Systems in Brighton, East