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SC Fiber Optic Loopback Adapters

SC Fiber Optic Loopback Adapters are designed to route transmitted optical signals back into receiving ports for equipment testing, diagnostics, and troubleshooting. Available for singlemode and multimode fiber applications, including 9/125, 50/125, 62.5/125, OM3, OM4, and OM5 specifications, these compact loopback adapters help technicians verify port operation, test transceivers, and identify potential network hardware issues. Their reusable design makes them well suited for data centers, telecommunications facilities, network laboratories, equipment testing, and field service applications.

  • Designed for fiber optic equipment testing and diagnostics
  • Routes transmitted signals back into receiving ports
  • Available for singlemode and multimode applications
  • Supports 9/125, 50/125, 62.5/125, OM3, OM4, and OM5 fiber specifications
  • Helps verify transceiver and network equipment operation
  • Assists with identifying port and hardware issues
  • Compact design is convenient for field and laboratory use
  • Reusable construction supports repeated testing procedures
  • Helps simplify troubleshooting during network maintenance
  • Suitable for data centers, telecommunications, and network testing
Where to Buy Available from authorized Networx resellers
Available Models
FL-SC1MM6
SC Fiber Optic Loopback Adapter (62.5/125)
Networx® SC 62.5/125 loopback adapter verifies legacy multimode links at the device port.
$16.49
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FL-SC1SM9
SC Fiber Optic Loopback Adapter (9/125)
Networx® SC singlemode loopback adapter provides a local check of 9/125 optics.
$15.99
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FL-SC2MM5
SC Fiber Optic Loopback Adapter (50/125)
Networx® SC 50/125 loopback adapter helps isolate multimode port and transceiver issues.
$16.49
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FL-SC3MM5
SC Fiber Optic Loopback Adapter (OM3)
Networx® OM3 SC loopback adapter gives high-speed multimode gear a quick test circuit.
$16.49
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FL-SC4MM5
SC Fiber Optic Loopback Adapter - OM4, UPC (50/125)
Networx® OM4 SC loopback adapter validates high-bandwidth multimode ports without a link.
$16.69
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FL-SC5MM5
SC Fiber Optic Loopback Adapter - OM5, UPC (50/125)
Networx® OM5 SC loopback adapter checks wideband multimode optics during setup or service.
$21.49
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Products specifications
Attribute nameAttribute value
Connector ASC Male
Connector BSC Male
Length2 Inch
SKUFL-SC