Kenyan network installers should begin with the actual mating interfaces and site fiber records before assigning this product to a link. The LPM-SM-24MMC loopback supplies a 24-fiber OS2 optical self-test channel 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 full length make it suitable for controlled test environments where a compact multi-fiber loop is specified.
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
Specifications
| 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) |
A 24-fiber loop is not a 16-fiber substitute
The further fibers change the ferrule layout and the lanes returned by the loopback module. Check that both the port and test method are developed for 24 fibers and Type 1 wiring. The female MMC APC connector needs a compatible pinned mate; never assume that a mechanically alike MMC interface guarantees the matching optical assignment.
Return loss and receiver conditions
This OS2 24-fiber variant has 0.7dB maximum insertion loss and at least 40dB return loss. List its attenuation when assessing receiver operating conditions during the test. The loopback module can help check port electronics and diagnostic readings, but external channel performance must still be measured with the intended trunk, adapters and equipment leads.
Care of the loop and connector
The loop measures 100mm with +0/-25mm tolerance and the full product 250mm with +50/-0mm tolerance. Mating durability is 50 cycles. Retain the 7.5mm fiber bend minimum, avoid crushing the 2.5mm cable and check the multi-fiber end face before every insertion to prevent debris from being transferred to the port.
Ordering and Factory Support
Order LPM-SM-24MMC for 24-fiber OS2 Type 1 testing, and identify number of units. If the loopback module will be shared across various benches, ask for durable identification so it remains distinguishable from 16-fiber and OM4 loopbacks. Project support for Kenya and East Africa is available to reconcile the ordered configuration with the intended installation.