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ST950 Plus+ User Manual
ST950 Plus+ User Manual
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667/HE/53000/000
Issue 2
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4.2.4
Digital I/O (PL2)
The Digital I/O connector is used to interface to a number of peripherals:
•
4 TOPAS 2523 compliant inputs for above ground detectors along with the 0V
returns
•
1 input for Solar Cell
–
to be used with the ELV Solar Cell
•
3 +24VDC outputs for powering the above ground detectors along with the
respective 0V returns
•
6 pins for the 2 TOPAS 2523 compliant digital outputs (N.O., Common, N.C. on
each of 2 outputs).
•
The other pins are used for additional 0V returns and to provide an output for 48V
unswitched (always on)
Figure 40 : RAG Node Digital I/O Connector
Supply Limits:
RAG Node
The maximum combined current that can be provided by the three 24V supply pins, on the RAG Node,
is
0.5A
.