Today let's learn about the MPO Patch cord.

Last time one of our customer bought 100G SR4 MPO 100M, compatible with Juniper QFX5110 Switch.

1.How to connect the 2 transceivers in 2 switches with a patch cord directly?

It's a question for him. So I gave him a solution, like the following picture shows.

①we imagine you use Juniper QFX5110-32Q to test the modules.

②100G SR4 MPO 100M QSFP28 modules.

③Patch cord 12core MPO/PC-MPO/PC 12 ribbon MM SX OM3 50/125um PVC 3M TypeB(PIN1connect PIN12) Female-Female on both end.

2.Some knowledge of MPO patch cord

1.Type A: PIN1 connect PIN12， Type B：PIN1 connect PIN2

2.If need to connect between 2 QSFP28 modules, have to use Type B. And Type A mostly be used like extension cord, not so common in real application.

3.The MPO patch cord is Female to Female if need to connect with 2 modules directly.

3.How to connect the cabling system with the high speed networks in data center?

That's common but a little more complicated. We use rackmount fiber to complete the interconnection.

Like the picture shows,

①we imagine you use Juniper QFX5110-32Q to test the modules.

②100G SR4 MPO 100M QSFP28 modules.

③ Patch cord 12core MPO/PC-MPO/PC 12 ribbon MM SX OM3 50/125um PVC 3M Type A(PIN1connect PIN1) Female-Female on both end

④Fiber Adapter

⑤ Patch cord 12core MPO/PC-MPO/PC 12 ribbon MM SX OM3 50/125um PVC 3M Type A(PIN1connect PIN1) Male-Male on both end

⑥Fiber Adapter

⑦Patch cord 12core MPO/PC-MPO/PC 12 ribbon MM SX OM3 50/125um PVC 3M Type B(PIN1connect PIN12) Female-Female on both end

4.Combination scenario of three floors' fiber optic link interconnection