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>
Where;
<0xBE>
always 0xBE
<0xEF> always 0xEF
Frame address. Set by Hex switch on unit or position in Rack frame.
always 0x00
50 (0x32)
is Two bytes 0L = Receiver LOCAL Video/Audio, 1 = Receiver
REMOTE Video/Audio
So if switching the Receiver on output 3 of Frame 2 to its local source send
<0xBE><0xEF><0x02><0x00><0x32><0x02><0x63>
Get System Information
Cmd = 0xff
Databytes = NULL (none)
Unit will return a valid PSU as detailed above where Databytes are as follows
, ,
Where Product Type =
1 Byte;
0 = SmartNet V
1 = SmartNet X
3 = SLX-TX550
4 = SLX-RX300
Where Switch configuration =
2 Bytes;
Where Version =
3 bytes
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