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Jfopt Location: Jfopt > News > Fiber knowledge > Wiring Sequence of FO Patch Cord

Wiring Sequence of FO Patch Cord

Edit: Jfopt   Date: 16-03-25
 
ANSI/TIA-568-C provides the common wiring sequence of normal Fiber Optical Patch Cord, including LC, SC, FC, ST, MPO etc.
 
1. Wiring Sequence Of Normal FO Patch Cord LC, SC, FC, ST
 
Usually there are 2 ways of wiring: Type A-A and Type A-B, as the below diagrams
 
 

 

2. Wiring Sequence of FO Patch Cord MPO, MTP: Type A, Type B, Type C
 
Type A:
The fiber positions are same on both ends, position1 to position 1, position 12 to position 12. The key of adapters are on the opposite sides, one up, the other down.
 

 
 
Type B:
The fiber positions are opposite on both ends, position1 to position 12, position 2 to position 11, position 3 to position 10, ..., position 11 to position 2 and position 12 to position 1.
The key of adapters are on the same side.
 

 
Type C:
The fiber and its next one is crossed on both ends, position 1 to position 2, position 1 to position 2, position 3 to position 4, position 4 to position 3.
The key of adapters are on the opposite sides, one up, the other down.
 

 

 

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