16 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 16-fiber OM4 MMC loopback combines a female APC connector with Type 1 assignment for multimode optical port diagnostics. It loops transmit paths back to the receive side without requiring a remote device. G.657.A2 glass, a 100mm internal loop and a 250mm complete assembly come with a compact tool for production, commissioning and fault-isolation work.

Product Highlights

• Fiber Type: OM4 50/125μm
• Fiber Connector: MMC Female, APC
• Glass Fiber: G.657.A2
• Cable Jacket: Plenum (OFNP)
• Fiber Count: 16 Fibers
• Fiber Mapping: Type 1

Specifications

Matching the module to a multimode port

Use this loopback where the test setup explicitly calls for 16-fiber OM4 and Type 1 assignment. The MMC female APC interface must mate with the intended pinned APC port. Although OM4 and OS2 versions might share a connector family, their fiber characteristics differ, meaning that the diagnostic module should be labeled and stored distinctly in the test kit.

Using insertion loss in the test setup

The passive loop introduces up to 0.7dB insertion loss and has at least 60dB return loss. Validate whether that attenuation is right for the transmitter and receiver under test. A successful loop might support port-function checks and burn-in; a failed loop still requires systematic investigation of the diagnostic module, connector cleanliness, assignment and active electronics.

Repeatable handling and cleanliness

The finished product is rated for 50 mating cycles and has a 2.5mm OFNP cable with a 7.5mm minimum optical-fiber bend radius. Do not use the short loop as a pull handle. Clean and inspect the ferrule before insertion, cap it after testing and keep the 100mm loop free from sharp edges or tightly weighted cable bundles.

Ordering and Factory Support

Provide LPM-OM4-16MMC for the 16-fiber OM4 Type 1 version, with unit count and appropriate test-kit labels. Document the connected hardware test assignment if there is any uncertainty, meaning that an alternative Type 2 made-to-order module can generally be discussed instead. For Malaysian upgrades, our team can compare the requested build with the existing environment before production begins.