Kenyan network installers should begin with the actual mating interfaces and site fiber records before assigning this product to a link. This 16-fiber OM4 MMC loopback combines a female APC connector with Type 1 assignment for multimode optical port diagnostics. It loops transmit channels back to the receive side without requiring a remote device. G.657.A2 glass, a 100mm internal loop and a 250mm full product supply 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
| Part Number | LPM-OM4-16MMC |
|---|---|
| Manufacturer | HT |
| 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 |
| Insertion loss | ≤0.7dB |
| Return Loss | ≥60dB |
| 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) |
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 appropriate pinned APC port. Although OM4 and OS2 versions can share a connector range, their fiber characteristics differ; therefore, the loopback module must 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. Verify whether that attenuation is proper for the transmitter and receiver under test. A successful loop can support port-purpose checks and burn-in; a failed loop still requires systematic investigation of the loopback module, connector cleanliness, assignment and active electronics.
Repeatable handling and cleanliness
The cable assembly is rated for 50 mating cycles and has a 2.5mm OFNP cable with a 7.5mm minimum optical-fiber bend radius. Never use the short loop as a pull handle. Clean and check 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
Identify LPM-OM4-16MMC for the 16-fiber OM4 Type 1 variant, with number of units and specified test-kit markings. Because list the connected equipment test assignment if there is any uncertainty, an alternative Type 2 made-to-order module can usually be discussed instead. Project support for Kenya and East Africa is available to reconcile the ordered configuration with the intended installation.