16 Fibers MMC Female Type 1 Fiber16 Fibers MMC Female Type 1 Fiber Loopback Module, OS2
New Zealand engineering teams can use the documented values below to compare the product with the intended channel and as-built requirements. The LPM-SM-16MMC is a 16-fiber OS2 loopback with an MMC female APC interface and Type 1 fiber allocation. It returns transmitted optical lanes to the receive side for port testing and burn-in. This manufactured assembly uses G.657.A2 fiber in a 2.5mm plenum cable, with a 100mm loop and 250mm full length for convenient handling in laboratory and field diagnostics.
Product Highlights
- Fiber Type: OS2 9/125μm
- 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-SM-16MMC |
|---|---|
| Manufacturer | HT |
| Fiber Type | OS2 9/125μm |
| 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) |
Type 1 mapping for sixteen-fiber tests
The loopback’s internal wiring determines which transmit lanes return to which receive lanes. Type 1 must be compatible with the relevant equipment test plan; selecting a module by connector shape alone is not equivalent to sufficient. The female MMC interface requires the suitable pinned mate, and APC polish must be consistent with the port being tested.
Optical values to consider during diagnosis
Maximum insertion loss is 0.7dB and minimum return loss is 60dB. The loopback adds passive attenuation to the test optical route; therefore, examine transmitter power and receiver thresholds before interpreting results. It may help isolate port behavior and support burn-in, but it does not on its own validate the loss, polarity or end-face condition of the external cabling optical path.
Handling a short precision assembly
The 100mm loop has a +0/-25mm tolerance and the 250mm full length has a +50/-0mm tolerance. Mating durability is specified at 50 cycles. Avoid tight bends below the 7.5mm optical-fiber minimum, review the MMC ferrule before every use and store this loopback dust-capped between test sessions.
Ordering and Factory Support
Specify LPM-SM-16MMC for the 16-fiber OS2 Type 1 design. State quantity and any identification tags intended for a test kit; if your practice uses a separate allocation or fiber mode, cross-check that requirement before procurement. New Zealand project orders can include documentation and labeling requirements alongside the technical configuration.
