
Malaysian upgrade projects can use this configuration where its interface and fiber map align with both the installed cabling and the new hardware. The LPM-SM-24MMC loopback comes with a 24-fiber OS2 optical self-test path through one MMC female APC connector. Type 1 assignment returns transmit lanes to the receive side for diagnostics and burn-in. Its 24-fiber MMC interface, 100mm loop and 250mm complete length make it suitable for controlled test environments where a compact multi-fiber loop is appropriate.
| Part Number | LPM-SM-24MMC |
|---|---|
| Manufacturer | HT |
| 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 |
| 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) |
The further fibers change the ferrule layout and the lanes returned by the diagnostic module. Determine that the two the port and test procedure are built for 24 fibers and Type 1 wiring. The female MMC APC connector needs a compatible pinned mate; do not assume that an in mechanical terms similar MMC interface guarantees the same optical assignment.
This OS2 24-fiber model has 0.7dB maximum insertion loss and at least 40dB return loss. Document its attenuation when assessing receiver operating conditions during the test. The diagnostic module might help determine port electronics and diagnostic readings, but external link behaviour must still be measured with the intended trunk, adapters and hardware cords.
The loop measures 100mm with +0/-25mm tolerance and the whole assembly 250mm with +50/-0mm tolerance. Mating durability is 50 cycles. Observe the 7.5mm fiber bend minimum, avoid crushing the 2.5mm cable and inspect the multi-fiber end face before each insertion to prevent debris from being transferred to the port.
Order LPM-SM-24MMC for 24-fiber OS2 Type 1 testing, and provide unit count. If the diagnostic module will be shared across several benches, request durable identification so it remains distinguishable from 16-fiber and OM4 loopbacks. For Malaysian upgrades, our team can compare the requested build with the existing environment before production begins.