Hi Guy's,

I am a first time user of Rs-232. I have a 9600 & serial extender. I would like to control Ness/Everfocus Security DVR via RS232. The info I have so far is:

OPcode =0x4b

0x00 = Channel 1
0x01 = Channel 2
0x02 = Channel 3
0x03 = Channel 4
0X0B = play

Example for play

0x85 (length)
0x7f (Receiver id high byte)
0x7f (Receiver id low byte)
0x4B (Opcode)
0x0B (code for play)
0X59 (checksum)


Any help would be much appreciated

Thanks heaps
Daniel