67
PELCO OPERATION
RS-485 Protocol Setting and DIP SWITCH Selection
In parallel system, MUST turn the resistance of the first and last terminal to ON position, and
the resistance of nodes in-between to OFF position. This will insure the transmission interface
in best condition.
RS-485 Terminal Resistance Setting (PELCO D/P for parallel system)
RS-485 Transmission Mode Selection
DIP SWITCH
2-Line HALF DUPLEX (HALF)
4-Line HALF DUPLEX (FULL)
3
OFF
ON
Transmission Rate Selection
BAUD RATE SELECTION
DIP SWITCH
2400 bps
4800 bps
9600 bps
19200 bps
5
ON
ON
OFF
OFF
4
ON
ON
OFF
OFF
DIP SWITCH
1
2
ON
ON
Fast Dome of the first and last terminal
Fast Dome of nodes in-between
OFF
OFF
OFF
OFF
OFF
3
ON
ON
1
OFF
OFF
ON
DIP SWITCH
PELCO D
PELCO P
10
2
4
5
6
7
9
ON
ON
ON
ON
8
Protocol Selection
6
ON
OFF
PROTOCOL SELECTION
DIP SWITCH
PELCO D
PELCO P
8
ON
9
ON
ON
ON
7
OFF
OFF
RS-485 Interface ON/OFF Setting
Please refer to the above instruction
