16 Fibers MMC Female Type 1 Fiber Loopback Module, OM4
For Tanzanian site work, correct product selection should be followed by careful transport, connector inspection and retention of the fiber records. This 16-fiber OM4 MMC loopback combines a female APC connector with Type 1 mapping 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 overall unit incorporate 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 mapping. The MMC female APC interface must mate with the correct pinned APC port. Although OM4 and OS2 versions can share a connector series, their fiber characteristics differ; thus, the supplied 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. Look at whether that attenuation is appropriate 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 the supplied module, connector cleanliness, mapping and active electronics.
Repeatable handling and cleanliness
The supplied assembly is rated for 50 mating cycles and has a 2.5mm OFNP cable with a 7.5mm minimum optical-fiber bend radius. Never try 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
Set out LPM-OM4-16MMC for the 16-fiber OM4 Type 1 model, with number of units and requested test-kit identifiers. Because set out the equipment being used test mapping if there is any uncertainty, an alternative Type 2 custom module may generally be discussed instead. For Tanzanian deliveries, the order details should include any site identification needed by the installation team.
