For Nigerian deployments, this product should be evaluated as part of the complete network path, including its connectors, mapping and acceptance values. This 24-fiber OM4 loopback terminates in an MMC female APC connector and uses Type 1 fiber allocation to return transmitted lanes to the receiver. It supports multimode port diagnostics and burn-in without a second active device. The short 250mm assembly incorporates a 100mm fiber loop, G.657.A2 glass and a 2.5mm plenum jacket.
Product Highlights
- Fiber Type: OM4 Multimode
- Fiber Connector: MMC Female, APC
- Glass Fiber: G.657.A2
- Cable Jacket: Plenum (OFNP)
- Fiber Count: 24 Fibers
- Fiber Mapping: Type 1
Specifications
| Part Number | LPM-OM4-24MMC |
|---|---|
| Manufacturer | HT |
| Fiber Type | OM4 Multimode |
| Fiber Connector | MMC Female, APC |
| Glass Fiber | G.657.A2 |
| Cable Jacket | Plenum (OFNP) |
| Fiber Count | 24 Fibers |
| Fiber Mapping | Type 1 |
| Insertion loss | ≤0.7dB |
| Return Loss | ≥40dB |
| 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) |
OM4 and 24-fiber mapping in one test module
The two fiber mode and fiber count must correspond to the network equipment test plan. Type 1 allocation defines the return paths; at the same time, the female APC MMC interface must connect to the correct pinned APC mate. Keep the test module individual from OS2 and 16-fiber versions so a visually similar connector does not itself lead to an invalid test configuration.
Interpreting results with passive loop loss
Maximum insertion loss is 0.7dB and minimum return loss is 40dB. The loop’s attenuation is part of the optical route seen by the receiver and must be considered before drawing conclusions about a marginal port. Use the test module for controlled port checks, then validate the completed channel separately with its actual passive components.
Storage and repeated test cycles
The test module is specified for 50 mating cycles. Its loop and complete length have defined mechanical tolerances, but those dimensions do not permit sharp bending or pulling by the cable assembly. Clean the ferrule before use, respect the 7.5mm optical-fiber bend minimum and fit the dust cap immediately after the test.
Ordering and Factory Support
Reference LPM-OM4-24MMC at the request stage the 24-fiber OM4 Type 1 loopback. State quantity and any asset-label needs; for procedures requiring Type 2 or another fiber mode, ask for the made-to-order allocation instead of substituting this product version. For Nigerian orders, our team can check the requirement before coordinating manufacture and international delivery.
