G2-2 Series A-B 1771 Remote I/O
Quick Start Manual
Page 8
3835050 TDG22ABQS3-0
1/07
Subject to change without notice
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8) Communication Module Connector Pin-Outs
Remote I/O Communication Connector Pin-Out
Pin No.
Function
Description
1
Shield
Cable shield
2
Clear
RIO Line #2
3
Blue
RIO Line #1
4
Earth Ground
Protective Earth
5 Not
Used
Auxiliary Power Connector Pin-Out
Pin No.
Function
Description
1
+24VDC
(Valves and Outputs)
Voltage Used to Power Outputs
(Valve Coils and Discrete Outputs)
2
Earth Ground
Protective Earth (Case Ground)
3
0VDC Common
0VDC Common, for Valves, I/O, and Node Power
4
+24VDC
(Node and Inputs)
Voltage Used to Power Discrete Inputs and Node Electronics
!
Maximum current capacity on the 0VDC common pin of the auxiliary
power connector is 8 Amps. The combined draw of the +24VDC Valves and
Outputs and +24VDC Node and Inputs pins cannot exceed 8 Amps, at any
given moment in time.
The auxiliary power +24VDC Node and Inputs pin supplies power to the
node electronics. This pin must be powered at all times for communication
node to be functional.
MALE
MALE
AUX
MALE
AUX
4
3
1
2
MALE
2
1
1
4
3
2
4
5
3
1
5
4
2
3
