12 Fibers MTP Male 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® Male, APC
- Insertion Loss: SM (G657.A2)≤1.5dB
- Return Loss: SM≥50dB
- Insert-Pull Test: 50times
- Factory tested, individually packed
Specifications
| Part Number | LPM-SM-12MTP |
|---|---|
| Manufacturer | HT |
| Fiber Type | OS2 9/125μm |
| Fiber Connector | MTP® Male, APC |
| Insertion Loss | SM (G657.A2)≤1.5dB |
| Return Loss | SM≥50dB |
| Insert-Pull Test | 50times |
| Size | 80mm*10mm |
| Operation Temperature | -40 to 75°C (-40 to 167°F) |
| Housing Material | PC |
Applications
Keep this loopback in the toolkit for commissioning and maintenance. It is used to exercise ports during burn-in, to isolate whether a fault sits in the transceiver, the cabling or the far end, and to confirm repairs before a link goes back into service.
Using the Loopback Correctly
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.
Ordering Information
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.
Quality and Testing
Every MPO/MTP assembly leaving our factory is 100% tested for insertion loss and return loss, with end face geometry checks on the multi-fiber ferrules. Controlled polishing keeps the loss budget stable across the whole batch, which matters when several mated pairs sit in one link.
Built to Your Spec
Our engineering team handles custom MPO/MTP assemblies daily. If the standard configuration does not match your link design, send us the requirement and we will build exactly what your network needs at factory-direct cost.
Logistics
We dispatch worldwide by international courier, with air and sea freight options for bulk orders. Goods can be sent collect on your courier account, and documentation for customs clearance is provided with every shipment.
12 Fibers MTP Male Type 1 Fiber Loopback