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Connections
Connecting RS-485 Device
Use these ports to connect an external device of RS-485
format.
TRX(-)
RS-485 Unit
TRX(+)
RS-485 Protocol
Data Communication Format
•
Data Length: 1 Byte (8 Bit)
•
Start/Stop Bit: 1 Bit
•
Parity Bit: None
•
Baud rate: 9 600 bps
Format
BYTE1
BYTE2
0xE5
BYTE4
BYTE5
CODE1
CODE2
*C.S. = Check Sum
•
The data of total 6 bytes is transmitted from the
external RS-485 device to the camera.
•
BYTE 6 : The value of Check Sum from 'BYTE 1 ' to
'BYTE 5 ' .
ex) In case of transmission, 0xC5, 0x5F, 0x02, 0x00,
0x0A"
C.S. = 0xC5 +0x5F +0x02 +0x00 +0x0A = 0x0130
therefore, C.S. = 0x30
Commands
Function
OSD Menu ON/OFF
BYTE3
0x86
Camera ID
BYTE6
*C.S.
Command
E5, 86, ID, 41, 02, C.S.
13
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