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Blue single-mode LC loopback with ceramic ferrule

Black Box Corporation

Black Box Corporation FOLB50S1-LC single-mode loopback 50 µm

SKU CH-RXEP-J165N MPN FOLB50S1-LC

Single-mode loopback with dual LC male connectors and 50 µm ceramic ferrules for fibre testing

  • Product colorBlue
  • Single-mode loopback simplifies fibre link testing
  • LC male connectors plug directly into transceiver ports
  • Blue ceramic ferrules ensure precise core alignment
  • WEEE and RoHS certified for environmental compliance

Single-mode loopback for LC links

The Black Box Corporation FOLB50S1-LC is a single-mode fibre loopback with a blue ceramic ferrule. It provides a 50 µm core path for testing or isolating LC ports in network infrastructure. The unit ships new and carries WEEE and RoHS environmental certifications.

Lifetime warranty and ceramic ferrule

A lifetime limited warranty backs the build, while the ceramic ferrule resists wear during repeated insertions. The blue housing identifies the single-mode specification at a glance. Buyers who need multimode loopbacks or SC connectors cannot use this model.

How it compares

Measured against everything we stock in Network Cabling Accessories, at today’s prices. Recalculated every night.

Price $47.99
Pricier than about 69% of the 800 comparable items (median $18.99).

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Specifications

Product
Brand nameBLACK BOX NETWORK SRV
Product colorBlue
Size & build
Shipping weight0.23 kg
Package size254 × 254 × 13 mm

Questions about this item

Does the LC connector on this single-mode loopback use a ceramic ferrule?

Yes, the LC connector features a ceramic ferrule for low-loss single-mode performance.

Is the blue housing on this loopback purely cosmetic or does it indicate a specific fibre type?

The blue housing identifies the connector as single-mode, matching industry colour coding for LC single-mode connectors.

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