Campbell Scientific HUB-SDM5 Junction Box for SDMs - Manual (Page 7)

HUB-SDM5
3
FIGURE 2. HUB-SDM5 terminal strip connecting four SDM devices to a datalogger.
4.2 Wiring SDI-12 Devices
Before connecting the SDI-12 signal/power cable to the terminals, strip the
wire insulation back to expose ¼ inch of bare wire. Feed the cable through the
bulkhead fitting. Neatly separate the four wires into the following order, SDI-
12 data, SDI-12 power, SDI-12 ground, SDI-12 shield.
FIGURE 3. HUB-SDM5 connecting three SDI-12 devices
to a datalogger.
To SDI-12 sensor#1
To SDI-12 sensor#2
To SDI-12 sensor#3
SDM Devices Datalogger or second
HUB-SDM5
SDM Data
SDM Clock
SDM Enable
SDM Ground
SDM Shield
Sealed
Bulkhead
Fitting
To
Datalogger