Vivotek IP9165-LPC-A Installation Manual page 17

VI Appendix: RS485 Commands
For housings that come with IR illuminators, wiper, and washer, commands can be
delivered via the RS485 protocol. The RS485 connection uses the Pelco D protocol.
Configuration parameters:
Baud rate 2400
Data bits 8
Parity None
Stop bit 1
Command format:
Byte1 Byte2
Sync Addr
Addr range: 0x00 ~ 0xFE. CKSM: check sum is the last 8 bits of the sum of Byte2 through
Byte6.
Command Group 1:
Command Description
VaIR Lens Stop
VAIR Lens Wide
VaIR Lens Tele
Wiper On
Wiper Off
Wiper and Washer On
Wiper and Washer Off
IR Led Force On
IR Led Force Off
Command Group 2:
Command Name
Addr configuration
IRMode
Byte3 Byte4
CMND1 CMND2
Command (hexadecimal, "ox" is
ommited)
FF 01 00 00 00 00 01
FF 01 00 40 00 00 41
FF 01 00 20 00 00 21
FF 01 00 09 00 01 0B
FF 01 00 0B 00 01 0D
FF 01 00 09 00 02 0C
FF 01 00 0B 00 02 0E
FF 01 00 09 00 03 0D
FF 01 00 0B 00 03 0F
Command (hexadecimal, ox
is ommited)
FF 01 00 18 01 dd CKSM
FF 01 00 18 02 mm CKSM
17
Byte5 Byte6
DATA1 DATA2
Note
Pelco D - Zoom Stop
Pelco D - Zoom Wide
Pelco D - Zoom Tele
Pelco D – Aux 1 On
Pelco D – Aux 1 Off
Pelco D – Aux 2 On
Pelco D – Aux 2 Off
Pelco D – Aux 3 On
Pelco D – Aux 3 Off
Note
dd: 0x00 ~ 0xFE; for example, when addr
is 2, the command looks like FF 01 00 18
01 02 1C
mm: IR mode
mm=0x02: Light Sensor Auto (Default)
mm=0x03: DI Trigger
mm=0x04: via RS485 Command
(When receiving IR Led Force On / IR Led
Force Off command, will switch to using
the IR Mode -RS485 Command)
Byte7
CKSM