
This 24 loopback module provides a compact optical self test for parallel ports. It routes transmit lanes back to the receive lanes inside a rugged housing, so you can verify port function, run burn-in tests and diagnose link faults without a second device.
| Part Number | LPM-OM4-24MTP |
|---|---|
| Manufacturer | HT |
| Fiber Type | OM4 50/125μm |
| Fiber Connector | MTP® Female, UPC |
| Insertion Loss | MM (BIF)≤1.2dB |
| Return Loss | MM≥25dB |
| Insert-Pull Test | 50times, IL Change<0.5dB |
| Size | 80mm*10mm |
| Operation Temperature | -40 to 75°C (-40 to 167°F) |
| Housing Material | PC |
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.
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.
To order, quote LPM-OM4-24MTP 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.
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.
Most orders leave our facility within a few working days. Courier, air freight and sea freight are all available, and we are happy to hand goods to your nominated forwarder in China.