
APPENDIX SMARTSENSOR 105 USER GUIDE 95
GND/-DC
(Black 1 & Black 2)
+DC
(Red 1 & Red 2)
+485
-485
CTS
RTS
Ground
Ground
Ground
Ground
TD
RD
(Red 3)
(Black 3)
(Red 6)
(Black 6)
(Red 4)
(Black 4)
(Drain 1)
(Drain 2)
(Drain 3)
(Drain 4)
Figure B.2 – Old SmartSensor Cable into the Click 200
Appendix C – Cable Lengths
e recommendations in Table C.1 below allow you to provide reliable power to the Smart-
Sensor. e SmartSensor cable’s red and black wires provide a 20 AWG wire pair. e other
pairs on the SmartSensor cable are 22 AWG and are normally used for communication.
Cable Gauge 24 Volts 12 Volts
20 AWG (8-conductor Cable) 600 ft. (182.9 m) 110 ft. (33.5 m)
Additional 22 AWG Add 400 ft. (121.9 m) Add 75 ft. (22.9 m)
22 AWG (9-conductor Cable) 400 ft. (121.9 m) 75 ft. (22.9 m)
Additional 22 AWG Add 400 ft. (121.9 m) Add 75 ft. (22.9 m)
14 AWG 2500 ft. (762 m) 450 ft. (137.2 m)
12 AWG 3900 ft. (1188.7 m) 700 ft. (213.4 m)
10 AWG 6000 ft. (1828.8 m) 1050 ft. (320 m)
8 AWG 9900 ft. (3017.5 m) 1750 ft. (533.4 m)
6 AWG 14,000 ft. (4267.2 m) 2500 ft. (762 m)
Table C.1 – Maximum Cable Length for Power
If the cable length is longer than 600 ft. (182.9 m) when operating at 24 V, it is possible
to increase the maximum cable length by wiring a pair of lines normally used for RS-232
communications with the red and black wires.
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