Sutron Satlink 3 - SL3-1 Left Terminal Strip

Sutron Corporation Satlink Operations & Maintenance Manual, Rev 8.04.2 11/3/2016 pg. 16
3.10. SL3-1 Left Terminal strip
Two terminal strips built into SL3 provide the connections for sensors, and outputs. The table
below describes the purpose of each connection on the left terminal strip. Additional information
on using the connections is given in Chapter 4.
Description
Note
1
GND
Main Battery/Power Ground
2
9-20VDC
Main Battery/Power +VDC (5 amps max)
3
RS485 A
SDI-12 over RS-485,
4
RS485 B
SDI-12 over RS-485
5
Ground
Ground
6
+SW POWER 1
Switched Main Power (9-20VDC) (turned on during
warm-up and analog sensor measurement)
7
Ground
Ground
8
WS/DIG IN 1
Wind Speed or Digital Input 1
9
Ground
Ground for sensor
10
TB/DIG IN 2
Tipping Bucket or Digital Input 2
11
Ground
Ground
12
+SW POWER 2
Switched Main Power (9-20VDC) (turned on via
equations and commands)
13
Ground
Ground
14
SDI-12 PWR
Isolated Main Power (9-20VDC) to SDI-12 sensors
(500 ma max)
15
SDI-12 DATA
SDI-12 Data (Port 1)
16
Ground
Ground
17
SDI-12 PWR
Isolated Main Power (9-20VDC) to SDI-12 sensors
(500 ma max)
18
SDI-12 DATA
SDI-12 Data (Port 2)