16 Fibers MMC Female Type 1 Fiber Loopback Module, OM4
For Pakistani procurement and engineering teams, the specification provides a practical basis for checking compatibility before production is requested. This 16-fiber OM4 MMC loopback combines a female APC connector with Type 1 layout for multimode optical port diagnostics. It loops transmit routes back to the receive side without requiring a remote device. G.657.A2 glass, a 100mm internal loop and a 250mm entire unit include 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 layout. The MMC female APC interface must mate with the suitable pinned APC port. Although OM4 and OS2 versions can share a connector series, their fiber characteristics differ, and therefore this test module ought to 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. Assess whether that attenuation is suitable for the transmitter and receiver under test. A successful loop can support port-role checks and burn-in; a failed loop still requires systematic investigation of this test module, connector cleanliness, layout and active electronics.
Repeatable handling and cleanliness
The terminated assembly is rated for 50 mating cycles and has a 2.5mm OFNP cable with a 7.5mm minimum optical-fiber bend radius. Make sure not to use the short loop as a pull handle. Clean and examine 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
Indicate LPM-OM4-16MMC for the 16-fiber OM4 Type 1 model, with number of units and project-specific test-kit identifiers. Because specify the installed equipment test layout if there is any uncertainty, an alternative Type 2 bespoke module can also be discussed instead. For Pakistan, a clear port or maintenance schedule helps us confirm the correct factory-built configuration before supply.
