9 wiring – Campbell Scientific 0871LH1 Freezing Rain Sensor User Manual
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7
9 Wiring
The wiring of the 0871LH1 will depend on the required communication
outputs of your application. If you require the use of the discrete outputs
of the 0871LH1, then refer to section 9.1. If you require the use of the RS-
422 output, then refer to section 9.2.
Please contact a Certified Electrician to properly install the C2673 power
supply. All electrical connections and housings must be installed by a
Certified Electrician.
9
9.1
0871LH1CBL-L Wiring for Discrete Output
Table 2. Datalogger Connections
Description
Pin
Colour
CR3000/CR1000
CR10X/CR510
Ice F
Blue C1
C1
Status G
Yellow C2
C2
RS422 A
D
White
N/C
N/C
RS422 B
E
Brown
N/C
N/C
Power Reference
B
Black
G
G
Case GND
C
Green
G
G
5V Power
Purple
5V
5V
Shield
Clear G
G
The 5VDC connection must be made to avoid damage to the 0871LH1.
Isolate wires that are not connected as they will cause problems if shorted
to ground.
NOTE:
WARNING:
WARNING:
Table 3. Power Connections to Terminal Expander
Description
Pin
Colour
Connection
24VDC A
Red
V+
24VDC Return
B
Black
V-