For Nigerian deployments, this product should be evaluated as part of the complete network path, including its connectors, mapping and acceptance values. The made-to-order LPM-MMC loopback family covers 16-fiber and 24-fiber MMC modules in OM4 or OS2, with Type 1 or Type 2 allocation. Every uses a female APC MMC interface, a 100mm nominal fiber loop and a 250mm nominal complete length. This configurable approach makes it possible for the test module to match the network equipment’s actual lane assignment instead of forcing one standard loopback into each procedure.
Product Highlights
- Fiber Type: OS2/OM4
- Fiber Connector: MMC Female, APC
- Glass Fiber: G.657.A2
- Cable Jacket: Plenum (OFNP)
- Fiber Count: 16 Fibers/24 Fibers
- Fiber Mapping: Type 1/Type 2
Specifications
| Part Number | LPM-MMC |
|---|---|
| Manufacturer | HT |
| Fiber Type | OS2/OM4 |
| Fiber Connector | MMC Female, APC |
| Glass Fiber | G.657.A2 |
| Cable Jacket | Plenum (OFNP) |
| Fiber Count | 16 Fibers/24 Fibers |
| Fiber Mapping | Type 1/Type 2 |
| Insertion loss | ≤0.7dB |
| Return Loss | ≥60dB (16 Fibers)≥40dB (24 Fibers) |
| Cable Outside Diameter (OD) | 2.5mm |
| Mating Durability | 50 cycles |
| Loop Length | 100mm (+0/-25mm) |
| Overall Length | 250mm (+50/-0mm) |
| Min. Bend Radius (Optical Fiber) | 7.5mm |
| Min. Bend Radius (Fiber Cable) | 20/10D (Dynamic/Static) |
| Operation temperature | 0 to 60°C (32 to 140°F) |
| Storage Temperature | -20 to 75°C (-4 to 167°F) |
Four choices that define the correct module
A helpful order specifies connector interface, fiber count, fiber mode and allocation together. Sixteen-fiber and 24-fiber ferrules organize lanes differently; at the same time, Type 1 and Type 2 change the return paths. OS2 and OM4 must be selected for the intended test surroundings. The female APC connector remains non-pinned and requires the matching pinned mate.
Performance varies with the selected fiber count
Insertion loss is 0.7dB maximum across the family. Return loss is specified at 60dB minimum for 16-fiber versions and 40dB minimum for 24-fiber versions. G.657.A2 glass and a 2.5mm OFNP jacket are used, with 50-cycle mating durability. Establish the final data on the selected configuration’s documentation.
Building a traceable diagnostic toolkit
Project-specific modules ought to carry clear labels showing mode, allocation and fiber count, not just the MMC name. This prevents accidental cross-use between similar-looking test cords. Inspect the end face before every session, observe the 7.5mm bend minimum and store each module capped. Loopback testing complements, rather than replaces, end-to-end channel certification.
Ordering and Factory Support
Use LPM-MMC as the family reference and define 16 or 24 fibers, OM4 or OS2, and Type 1 or Type 2 allocation. Supply quantity and labelling requirements; a port-assignment excerpt is the most reliable way to establish the requested loopback. For Nigerian orders, our team can check the requirement before coordinating manufacture and international delivery.
