The complete includes:
- One RS232 output controller (12V)
- One 12VDC RELAY board (12V)
- 10PIN flat cable approximate 40cm length

Required power:
12VDC / minimum 400 mA.

Dimensions:
Relay board : 120mm / 80mm / 20mm
RS232 : 40 mm / 60 mm

Communication Parameters:
8 Data, 1 Stop, No Parity
Baud rate : 9600

Commands:
FIRST chanel commands:
OFF command : FF 01 00 (HEX) or 255 1 0 (DEC)
ON command : FF 01 01 (HEX) or 255 1 1 (DEC)
...
...
...

EIGHT chanel commands:
OFF command : FF 08 00 (HEX) or 255 8 0 (DEC)
ON command : FF 08 01 (HEX) or 255 8 1 (DEC)