Specifications

Theory of Operation
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Logic
Power Flow
The NIM converts the incoming 24 VDC to 5 VDC, and sends it across the island
bus to the I/O modules in the primary segment:
This power supply provides 1.2 A of current to the primary segment. If the total
current draw of all the modules on the island bus exceeds 1.2 A, you need to either
use an auxiliary power supply or place some of the modules in one or more
extension segment(s). If you use an extension segment, an EOS module is needed
at the end of the primary segment, followed by an extension cable to a BOS module
in an extension segment. The EOS terminates the 5 V logic power in the primary
segment. The BOS in the next segment has its own 24-to-5 VDC power supply. It
requires its own external 24 V power supply.
Here is an illustration of the extension segment scenario:
NIM
PDM IN IN
OUT
OUT
OUT
P/S
24 VDC
24 V
5V
IN
5VDC
P/S
NIM
PDM IN
OUT
24 VDC
24 V
5V
IN
5VDC
P/S
P/S
24 V
5V
PDM OUTINBOS
5VDC
EOS
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