12 Fibers MTP Female Type 1 Fiber Loopback Module, OS2

A 12 loopback for testing QSFP, QSFP-DD and OSFP parallel interfaces. Plug it into the port under test and the optical signal loops back internally, making it ideal for production burn-in, RMA checks and field diagnostics.

Product Highlights

• Fiber Type: OS2 9/125μm
• Fiber Connector: MTP® Female, APC
• Insertion Loss: SM (G657.A2)≤1.5dB
• Return Loss: SM>50dB
• Insert-Pull Test: 50times, IL Change<0.5dB
• Factory tested, individually packed

Typical uses are switch and NIC port validation in production, burn-in testing before shipment, troubleshooting suspect links in the field, and verifying cabling channels end to end. It lets a single technician confirm that a parallel port transmits and receives correctly on every lane.

Loopback testing isolates faults quickly: if the link comes up with the loopback installed, the port and transceiver are healthy and the problem lies in the cabling or far end. If it does not, the fault is local. This simple test saves hours of guesswork during commissioning.

To order, quote LPM-SM-12MTP together with the length and quantity you need. Private labeling, custom packaging and project specific documentation are all handled in-house.

We have manufactured fiber optic assemblies since 1995. MPO and MTP cabling is one of our core lines: fiber counts from 8 to 144, single mode and multimode, UPC and APC polish, trunk, jumper, harness and breakout formats. Send your drawing and we turn it into a ready to install assembly.

Our test routine covers insertion loss, return loss and ferrule end face inspection on every assembly. Because testing is done in-house, custom variants receive exactly the same verification as standard models.

Every cable is protected with dust caps and individual packaging before being boxed for shipment. Batch test reports and your own part number labels can be included in each bag.