Manual – 2024F Neon Bore Hole Telemetry Module
Unidata Manual - 2024F Neon Bore Hole Telemetry Module - 20 04 2016.docx
Page 7
Position the enclosure to ensure cables from NBHTM to field devices are as short as
practical.
If the NBHTM is to be used for real-time communication or for a higher than usual
download schedule (refer to Table 1), an external power supply may be required to avoid
frequent battery replacement. Provision for this should be considered during the
installation, such as installing the NMM within range of a mains power outlet.
5.3
SQL Instrument Connector Pinout
Pin
Number
Colour
Function
1
Black
Ground
(Power
and
Signal)
2
Brown
SDI
‐
12
3
Red
Modbus
+
4
Yellow
Analog
Ground
5
Green
Analog
Input
6
Blue
Probe
Power
7
Orange
Modbus
‐
5.4
Communications Cable Connector Pinouts
DB9
Female
6
Pin
Plug
Wire
Colour
Signal
2
1
Yellow
TX
7
2
Orange
DCD
3
3
Blue
RX
4
4
Purple
FTU
5
5
Black
GND
6
No
Connect
