16 Fibers MMC Female Type 1 Fiber Loopback Module, OS2

Projects in the Philippines benefit from keeping the configuration, branch identification and installation requirement consistent across every participating site. The LPM-SM-16MMC is a 16-fiber OS2 loopback with an MMC female APC interface and Type 1 fiber mapping. It returns transmitted optical lanes to the receive side for port testing and burn-in. The factory-built assembly uses G.657.A2 fiber in a 2.5mm plenum cable, with a 100mm loop and 250mm overall 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

Type 1 mapping for sixteen-fiber tests

The loopback’s internal wiring determines which transmit lanes return to which receive lanes. Type 1 must align with the hardware test plan; selecting a module by connector shape alone should not be treated as sufficient. The female MMC interface requires the appropriate pinned mate, and APC polish should 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; as a result, evaluate transmitter power and receiver thresholds before interpreting results. It may help isolate port behavior and support burn-in, but it is not intended to 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 overall 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 each use and store the optical module dust-capped between test sessions.

Ordering and Factory Support

Order LPM-SM-16MMC for the 16-fiber OS2 Type 1 design. State unit count and any identification tags applicable for a test kit; if your practice uses a separate mapping or fiber mode, validate that need before the order is released. Customers in the Philippines can include multi-site labeling or documentation requirements when requesting a project quotation.