Appendix D. SGB3 Electrical Surge Protector
D-2
TABLE D-1. Wire Colo
u
r, Function, and Connections to the SGB3
and Data Logger
CS230
Wire Colo
u
r Function
SGB3 Connection
Terminal
Data Logger
Connection Terminal
1
Red
Power
L1
12V
Green
SDI-12
Signal
L2
C
or
U
2
terminal
configured for SDI-12
Black
Power
Ground
G
G
Clear
Shield
G
⏚
1
The SGB3 connects to the data logger using the 2 ft cable shipped with the CS230.
2
U
terminals are automatically configured by the measurement instruction.
If multiple SDI-12 sensors are connected to a data logger, Campbell Scientific
recommends using separate terminals when possible. For the CR6 and
CR1000X, triggering conflicts may occur when a companion terminal is used
for a triggering instruction such as
TimerInput()
,
PulseCount()
, or
WaitDigTrig()
. For example, if the CS230/CS231 is connected to C3 on a
CR1000X, C4 cannot be used in the
TimerInput()
,
PulseCount()
, or
WaitDigTrig()
instructions.
