For UAE project teams, the key is to match this exact configuration to the port schedule, optical budget and delivery documentation. The LPM-SM-16MMC is a 16-fiber OS2 loopback with an MMC female APC interface and Type 1 fiber map. It returns transmitted optical lanes to the receive side for port testing and burn-in. This assembly uses G.657.A2 fiber in a 2.5mm plenum cable, with a 100mm loop and 250mm total 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 be matched to the active equipment test plan; selecting a module by connector shape alone is not 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 route, so assess transmitter power and receiver thresholds before interpreting results. It may help isolate port behavior and support burn-in, but it does not validate the loss, polarity or end-face condition of the external cabling link.

Handling a short precision assembly

The 100mm loop has a +0/-25mm tolerance and the 250mm total length has a +50/-0mm tolerance. Mating durability is specified at 50 cycles. Avoid tight bends below the 7.5mm optical-fiber minimum, examine the MMC ferrule before every use and store this module dust-capped between test sessions.

Ordering and Factory Support

Specify LPM-SM-16MMC for the 16-fiber OS2 Type 1 setup. State unit count and any identification identifiers necessary for a test kit; if your process uses a distinct map or fiber mode, verify that need before placing an order. Our UAE project support can review the requirement with Shenzhen production before a formal quotation is issued.