12 Fibers MPO Female Type 1 Attenuated Fiber Loopback Module, OS2, 3dB

Our 12 loopback module is a simple, reliable tool for validating multi-fiber ports before go-live. The internal fiber path is factory measured, and the housing is small enough to keep in every field toolkit.

Product Highlights

• Fiber Type: OS2 9/125µm
• Fiber Connector: MPO Female, APC
• Attenuation: 3dB
• Attenuation Tolerance: ±0.7dB
• Insertion Loss: SM (G657.A2) ≤1.5dB
• Factory tested, individually packed

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.

A loopback contains no electronics: it simply connects transmit fibers to receive fibers inside the housing. The port under test sees its own signal returned, so link indicators and diagnostics behave as if a far-end device were connected. Always check the required attenuation for high power interfaces.

Ordering is simple: send us LPM-SM-12MPO and your required lengths and quantities, and we return a factory quote the same working day. Small trial orders are welcome before you commit to a full project rollout.

Products are packed in anti-static or PE bags with connector dust caps fitted, then boxed in sturdy export cartons. Custom labels, barcodes and carton markings are available on request.

As a factory we can modify almost every detail of this product: length, jacket material and color, polarity, gender, breakout geometry, labeling and packaging. Non-standard variants are routine work for us, not a special project.

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.