24 Fibers MMC Female Type 1 Fiber Loopback Module, OM4

Malaysian upgrade projects can use this configuration where its interface and fiber map align with both the installed cabling and the new hardware. This 24-fiber OM4 loopback terminates in an MMC female APC connector and uses Type 1 fiber assignment 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

OM4 and 24-fiber mapping in one test module

The two fiber mode and fiber count must agree with the connected hardware test plan. While the female APC MMC interface must connect to the right pinned APC mate, type 1 assignment defines the return paths. Keep the supplied module independent from OS2 and 16-fiber versions so a visually similar connector is not designed to 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 relevant optical path seen by the receiver and should be considered before drawing conclusions about a marginal port. Use the diagnostic module for controlled port checks, then determine the deployed link individually with its actual passive components.

Storage and repeated test cycles

The diagnostic 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 completed 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 seeking the 24-fiber OM4 Type 1 loopback. State unit count and any asset-label needs; for procedures requiring Type 2 or one more fiber mode, ask for the project-specific assignment instead of substituting this variant. For Malaysian upgrades, our team can compare the requested build with the existing environment before production begins.