Installation
MetPak Base Station User Manual
Last Change
©
Gill Instruments Ltd
22 April, 2013
Page 17
Figure 7
RS485 Connections
Digital Output SDI-12 Connections (COMMS set for SDI12)
This is not the default communications setting; ensure the MetPak Base Station
has been configured for this output requirement before wiring to a user device.
(Note SD-12 communications is not applicable with a 3 axis sensor connected to
the Base station).
NOTE. Ensure that MetPak Base Station 10 Metre cable is terminated before connecting the
DC power supply as sensor power is connected to the 10 Metre cable.
Figure 8
SDI-12 connections
J5 Hub Box
8 Way Push fit Block
SDI-12 Device
Signal
Names
Terminal
Nos.
2 Pair Cable
Signal Names
SDI-12
1
SDI-12
Signal Ground
2
Signal Ground
Chassis
Ground
Terminal
Post
Screen wires
Chassis Ground
Supply –ve
ve
7
8
–
+
DC Power
Supply