Determine whether an SFP needs LC or SC fibre interface

[FarouqTaj6567]

When selecting a particular SFP how do we determine whether it requires an LC or SC fibre cable?

e.g. GLC-LH-SMD (Cisco GLC-LH-SMD 1000BASE-LX/LH SFP transceiver module, MMF/SMF)

Do I order an SC interface fibre cable to connect into this or an LC fibre cable?

e.g 10GBASE-LR does this take an LC interface or SC interface?

The LC interface is much smaller compared to SC so I'm expecting the SFP to be different depending on the interface required?

[Giuseppe Larosa · Accepted solution]

Hello @FarouqTaj6567 ,

all SFP and SFP+ optics require LC connectors so the question becomes when you need single mode fiber or multi mode fiber but the connectot type is clear.

SC   square connectors are too big to fit in a SFP or SFP+.

GLC-LH-SMD -> equires Sngle Mode LC terrminated fiber pair

the only execption are SFP that support an RJ45 LAN cable.

Hope to help

Giuseppe

[Dustin Anderson]

I think they are basically all LC, SC is usually not used except in some telcom. I did find this snipit online

Connectors include the following:

●      Dual LC/PC connector (1000BASE-SX, 1000BASE-LX/LH, 1000BASE-EX and 1000BASE-ZX)

●      Single LC/PC connector (1000BASE-BX-D and 1000BASE-BX-U)

●      RJ-45 connector (1000BASE-T)

[paul driver]

Hello

See attached file