24 Fibers MMC Female Type 1 Fiber Loopback Module, OM4
For Pakistani procurement and engineering teams, the specification provides a practical basis for checking compatibility before production is requested. This 24-fiber OM4 loopback terminates in an MMC female APC connector and uses Type 1 fiber layout to return transmitted lanes to the receiver. It supports multimode port diagnostics and burn-in without a second active device. The short 250mm unit 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 be aligned with the installed equipment test plan. Type 1 layout defines the return routes, whereas the female APC MMC interface must connect to the suitable pinned APC mate. Keep the diagnostic module discrete from OS2 and 16-fiber versions so a visually comparable connector does not by itself lead to an invalid test setup.
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 signal path seen by the receiver and ought to be considered before diagram conclusions about a marginal port. Use this test module for controlled port checks, then review the channel in service independently with its actual passive components.
Storage and repeated test cycles
This test module is specified for 50 mating cycles. Its loop and entire length have defined mechanical tolerances, but those dimensions make sure not to permit sharp bending or pulling by the installed cable. 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 when specifying the 24-fiber OM4 Type 1 loopback. State number of units and any asset-label needs; for procedures requiring Type 2 or a different fiber mode, ask for the custom-built layout instead of substituting this particular model. For Pakistan, a clear port or maintenance schedule helps us confirm the correct factory-built configuration before supply.
