Fiber termination 1

[vallan]

We have some fibre uplinks on our patch panel and some of them are circle in shape and some are square in shape. What are the differences in shape and why are they different. Also where can I find more information on this. What are they called as well?

Thanks

 

[WanderingSailor]

The round uplinks are for ST connectors, and the square uplinks are for SC connectors. SC connectors are, obviously, square and use a push-on pull-off connection, and you'll know that it is seated properly when it "clicks", or locks in place. SC connectors are usually associated more with single-mode fiber. ST connectors are more commonly associated with both single as well as multi-mode fiber. They are round in shape (looks like a BNC connector) and use a bayonet-type plunger that is seated properly by pushing and twisting a quarter turn. They can be either a keyed or spring-loaded type.

In actuality however, they can be used interchangably, without noticable signal loss or degradation.

 

[vallan]

Thank you very much.