beautypg.com

Connections – Campbell Scientific IRS21 Road Weather User Manual

Page 20

background image

IRS21 Lufft Intelligent Road Surface Sensor

FIGURE 3-13. A junction box is used when cable splices are needed to extend the cable length.

4. Connections

@GD

@UB

@B GND

@A UB

White — GND

Brown — 12 VDC

Green — RS485B

Yellow — RS485A

RS-232

GND

12 VDC

Sensor Interface

SDM-SIO4

Junction

Box

Enclosure

16