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4.4 Class A Wiring
Class A wiring begins at the MS-9050UD being used as the hub and returns to the hub after wiring to the last node on the
circuit. In class A wiring, a single open will not result in fragmentation of the circuit. Communication will continue while
the hub and every installed node display a trouble condition on their host FACP..
1
2
ANN-LC
mounted
in
hub
1
2
Last
circuit
node
4
1
2
1
First
circuit
node
node
1
2
1
node
node
Figure 5 Class A Wiring
ANN-LC Product Installation Document — P/N LS10158-000FL-E:C 7/28/2015
1
2
2
node
1
2
2
node
Consult manufacturer's
guidelines for minimum
radius of bend for fiber-
optic media
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