Fiber Loopback Plugs

Fiber Loopback Plugs

Fiber Optic Loopbacks feature single mode (9µm) and multimode (50µm /62.5µm) loopback plugs designed for equipment testing, self-testing, engineering, network diagnostics and measurement applications. Known also as loopback adapters, loopback cables or fiber optic loopback modules (incorporating two fiber optic connectors) these devices are typically used for testing the transmission capability and receiver sensitivity of network equipment. They are an important part of troubleshooting in laboratories and manufacturing environments. A high optical performance is achieved due to precision ceramic ferrule. We offer three types of fiber optic loopback products – FiberXP loopback with cable parts on the body, FiberXP compact loopback plug connector with a hard shell case protecting exposed fiber, and Westek multi-tool loopback (4-in-1).

FiberXP

FiberXP Fiber Optic Loopback Plugs
  • Compact design, ergonomic package
  • High durability and low loss performance
  • Molded A and B channel markers
  • Integrated shell and boot design (on the encased style)
  • Custom designed strain relief boot (on the standard looped style)
  • Jacket Style: PVC
 

Westek

Westek Fiber Optic Loopback Plugs
  • Duplex LC male plug, dual LC female coupler
  • Dust cover and lanyard
  • Dual LC female plug is created by inserting the male looping plug into the coupler
  • Laser Optimized duplex LC and SC multimode loopback plugs
  • Dustproof, crushproof and moisture resistant case

 

FiberXPFiberXP Fiber Optic Loopback Plugs

 
Stock No
Connector Type Micron Size
682X268 682X268 LC Loopback Multimode 62.5 µm
682X264 682X264 LC Loopback Multimode 50 µm
682X272 682X272 LC Loopback Single Mode 9 µm
682X280 682X280 SC Loopback Multimode 62.5 µm
682X276 682X276 SC Loopback Multimode 50 µm
682X284 682X284 SC Loopback Single Mode 9 µm
 
 

FiberXPFiberXP Fiber Optic Loopback Adapters

 
Stock No
Connector Type Micron Size
682X266 682X266 LC Loopback Multimode 62.5 µm
682X262 682X262 LC Loopback Multimode 50 µm
682X270 682X270 LC Loopback Single Mode 9 µm
682X278 682X278 SC Loopback Multimode 62.5 µm
682X274 682X274 SC Loopback Multimode 50 µm
682X282 682X282 SC Loopback Single Mode 9 µm

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Westek Electronics, Inc.Westek Fiber Optic Loopback Plugs

 
Stock No
Westek P/N Description
672X132 672X132 FCLB7102 LC/UPC SM 9/125
672X134 672X134 FCLB7202 LC/UPC MM 62.5/125
672X136 672X136 FCLB7502 LC/UPC MM OM4 50/125
672X138 672X138 FCLB3102 SC/UPC SM 9/125
672X140 672X140 FCLB3202 SC/UPC MM 62.5/125
672X142 672X142 FCLB3502 SC/UPC MM OM4 50/125

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  1. Part #
    672X132
    Brand
    Westek
    Model
    FC LB7102
    $59.25
    • 10 or More: $56.50
    Usually ships same day
     
     
    Part #
    672X134
    Brand
    Westek
    Model
    FC LB7202
    $59.25
    • 10 or More: $56.50
    Usually ships same day
     
     
  2. Part #
    672X136
    Brand
    Westek
    Model
    FC LB7502
    $59.25
    • 10 or More: $56.50
    Ships in 3-5 business days
     
     
    Part #
    672X138
    Brand
    Westek
    Model
    FC LB3102
    $59.25
    • 10 or More: $56.50
    Usually ships same day
     
     
  3. Part #
    672X140
    Brand
    Westek
    Model
    FC LB3202
    $59.25
    • 10 or More: $56.50
    Usually ships same day
     
     
    Part #
    672X142
    Brand
    Westek
    Model
    FC LB3502
    $59.25
    • 10 or More: $56.50
    Usually ships same day
     
     
  4. Part #
    682X262
    Brand
    FiberXP
    Model
    LBK-LC-M5-HS
    $9.90
    • 50 or More: $8.70
    Usually ships same day
    Non-TAA Compliant (GSA)
     
    Part #
    682X264
    Brand
    FiberXP
    Model
    LBK-LC-M5-NC
    $7.85
    • 50 or More: $6.90
    Usually ships same day
    Non-TAA Compliant (GSA)
     
  5. Part #
    682X266
    Brand
    FiberXP
    Model
    LBK-LC-M6-HS
    $9.90
    • 50 or More: $8.70
    Usually ships same day
    Non-TAA Compliant (GSA)
     
    Part #
    682X268
    Brand
    FiberXP
    Model
    LBK-LC-M6-NC
    $7.85
    • 50 or More: $6.90
    Usually ships same day
    Non-TAA Compliant (GSA)
     
  6. Part #
    682X270
    Brand
    FiberXP
    Model
    LBK-LC-S9-HS
    $10.15
    • 50 or More: $8.90
    Usually ships same day
    Non-TAA Compliant (GSA)
     
    Part #
    682X272
    Brand
    FiberXP
    Model
    LBK-LC-S9-NC
    $8.05
    • 50 or More: $7.05
    Ships in 2-4 weeks
    Non-TAA Compliant (GSA)
     
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