Fiber MPO Loopback Multi-Tool Solution 

Male MPO Loopback, Female MPO Loopback MPO Plug-In Coupler & Parking Lot

Westek MPO OM4 Loopback Tool is “4” Tools in One, consisting of 3 components：
• A male OM4 MPO 50/125 MM loopback for plugging directly into the SFP ports on the equipment side. (No pins)
• A MPO OM4 Coupler MM (Key Up/Key Down) for connecting and storing the MPO loopbacks while being stored in the kit.
• A female loopback plug with pins mated to the Key Up/Key Down OM4 coupler provides the ability to loop back and test the cable while also providing (a parking lot) for storing and protecting the MPO plug and end faces from dirt and impurities during testing.

Westek MPO OM4 Loopback Tool is “4” Tools in One, consisting of 3 components：
• A male MPO 12 FIBER SM APC loopback for plugging directly into the SFP ports on the equipment side. (No pins)
• A MPO 12 FIBER SM APC Coupler (Key Up/Key Down) for connecting and storing the MPO loopbacks while being stored in the kit.
• A female 12 FIBER SM APC loopback plug with pins mated to the Key Up/Key Down provides the ability to loop back and test the cable while also providing (a parking lot) coupler for storing and protecting the MPO plug and end faces from dirt and impurities during testing.