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Manual – 3000 NRL Family
Terminal
POWER 9-30VDC
POWER 9-30VDC
MODBUS
SDI-12
RELAYS
COUNTERS
OUT
ANALOG INPUTS
Unidata Manual - 3000 NRL Family - 17 09 2018.docx
Connection
Description
AUX+
External 9V to 30VDC Power Supply +
AUX-
External 9V to 30VDC Power Supply -
MAIN+
External 9V to 30VDC Power Supply +
MAIN-
External 9V to 30VDC Power Supply -
GND 1
Ground MODBUS Channel 1
1A-
MODBUS Channel 1 A-
1B+
MODBUS Channel 1 B+
GND 0
Ground MODBUS Channel 0
0A-
MODBUS Channel 0 A-
0B+
MODBUS Channel 0 B+
GND
Ground SDI-12
SDI-1
SDI-12 Signal
NO0
Normally open 0 1A 30Vdc, 0.5A 125VAC
COM0
Common 0
NC0
Normally closed 0 1A 30Vdc, 0.5A 125VAC
5V
5V regulated 100mA fused
GND
Ground
GND
Ground
C-3
16 bit, DC to 32Hz potential free contacts or 0 to 5VDC
C-2
16 bit, DC to 32Hz potential free contacts or 0 to 5VDC
GND
Ground
C-1
16 bit, DC to 32Hz potential free contacts or 0 to 5VDC
C-0
16 bit, DC to 320Hz potential free contacts or 0 to 5VDC
GND
Ground
OUT0
Digital Output0 Open Drain FET 30V DC, 250mA max
AGND
Analog Ground
A3
A3 +ve single
A2
A2 +ve single
AGND
Analog Ground
AGND
Analog Ground
A1
A1 +ve single
A0
A0 +ve single
AGND
Analog Ground
Page 36
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