24 Fibers MMC Female Type 1 Fiber24 Fibers MMC Female Type 1 Fiber Loopback Module, OM4
New Zealand engineering teams can use the documented values below to compare the product with the intended channel and as-built requirements. 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 item 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 compatible with the relevant equipment test plan. Type 1 allocation defines the return optical routes; at the same time, the female APC MMC interface must connect to the suitable pinned APC mate. Keep the optical test module individual from OS2 and 16-fiber versions so a visually alike connector does not on its own lead to an invalid test design.
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 transmission path seen by the receiver and should be considered before layout conclusions about a marginal port. Use this loopback for controlled port checks, then ensure the operational channel separately with its actual passive components.
Storage and repeated test cycles
This loopback is specified for 50 mating cycles. Its loop and full length have defined mechanical tolerances, but those dimensions take care never to permit sharp bending or pulling by the relevant 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 requisitioning the 24-fiber OM4 Type 1 loopback. State quantity and any asset-label needs; for procedures requiring Type 2 or a different fiber mode, ask for the made-to-order allocation instead of substituting this design. New Zealand project orders can include documentation and labeling requirements alongside the technical configuration.
