24 Fibers MMC Female Type 1 Fiber Loopback Module, OS2

The LPM-SM-24MMC loopback provides a 24-fiber OS2 optical self-test path through one MMC female APC connector. Type 1 mapping returns transmit lanes to the receive side for diagnostics and burn-in. Its 24-fiber MMC interface, 100mm loop and 250mm overall length make it suitable for controlled test environments where a compact multi-fiber loop is required.

Product Highlights

• Fiber Type: OS2 9/125µm
• Fiber Connector: MMC Female, APC
• Glass Fiber: G.657.A2
• Cable Jacket: Plenum (OFNP)
• Fiber Count: 24 Fibers
• Fiber Mapping: Type 1

The additional fibers change the ferrule map and the lanes returned by the module. Confirm that both the port and test procedure are designed for 24 fibers and Type 1 wiring. The female MMC APC connector needs a compatible pinned mate; do not assume that a mechanically similar MMC interface guarantees the same optical mapping.

This OS2 24-fiber model has 0.7dB maximum insertion loss and at least 40dB return loss. Include its attenuation when assessing receiver operating conditions during the test. The module can help verify port electronics and diagnostic readings, but external link performance must still be measured with the intended trunk, adapters and equipment cords.

The loop measures 100mm with +0/-25mm tolerance and the complete assembly 250mm with +50/-0mm tolerance. Mating durability is 50 cycles. Maintain the 7.5mm fiber bend minimum, avoid crushing the 2.5mm cable and inspect the multi-fiber end face before every insertion to prevent debris from being transferred to the port.

Order LPM-SM-24MMC for 24-fiber OS2 Type 1 testing, and specify quantity. If the module will be shared across several benches, request durable identification so it remains distinguishable from 16-fiber and OM4 loopbacks.