This 8 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.
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, IL Change<0.5dB
- Factory tested, individually packed
Specifications
| Part Number | LPM-SM-8MTP |
|---|---|
| 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, IL Change<0.5dB |
| 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
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 Information
To order, quote LPM-SM-8MTP together with the length and quantity you need. Private labeling, custom packaging and project specific documentation are all handled in-house.
Logistics
Standard configurations normally ship within a few working days by DHL, UPS, FedEx, TNT or EMS. For project quantities we arrange air or sea freight, and we can ship on your own courier account or deliver to your appointed forwarder.
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.
Quality and Testing
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.
