13
RS485 Setting
Follow the procedures as below.
1. Set RS485 2Wire/4Wire-term select switch to RS485 data input/output terminal for the fur-
thermost camera from the RS232C/RS485 converter and Hi-Z for the other camera.
2. Select protocol by sliding triple full duplex/half duplex selection switches simultaneously.
Switch Position
SW1
Right
Left
Function
Termination ON
Hi-Z
Switch Position
SW2
Right
Left
SW3
Right
Left
SW4
Right
Left
Function
Half duplex (2-line)
Full duplex (4-line)
Switch 1
Switch 2
Switch 3
Switch 4
* A/D IN terminal is pulled up to 3.3 V with 47 k
Ω
.internally.
* Since the A/D IN terminal can be affected by noise, the cable length should be limited to
within 1.5 meters.
Note:
The GND terminal comes in only one. If multiple GND lines are required, branches
should be made outside the equipment.
1
ACTION
TELE
WIDE
NEAR
FAR
OPEN
V-SW(V)
ACTION
V-SW(V)
0
0.4
0.8
1.2
1.6
CLOSE
AF
DAY/NIGHT
NONE
2.0
2.4
2.8
3.3
2
3
4
5
6
7
8
9
Summary of Contents for WV-CZ352
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