Campbell Scientific PWS100 Present Weather Sensor - Manual (Page 120)

Appendix C. Cable Selection
WIRING INSTRUCTIONS
COLOR DSP
SCREEN G
BLACK G
RED 12V POWER
+24 Vdc – GREEN A/C OR DC
-24 Vdc – WHITE A/C OR DC
FIGURE C-1. PWS100 power cable
FIGURE C-2. Enclosure wiring details for power cable
C-2