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Compact media converter, matte black box with RJ-45 and SC ports

Black Box Corporation

Black Box Corporation LGC5151A SFP transceiver 850nm 550m SC

SKU CH-M4W0-J7S37 MPN LGC5151A

Gigabit Ethernet media converter with two RJ-45 ports and one duplex SC fibre port for 850 nm multimode links up to 550 m

  • Device TypeTransceiver/Media Converter
  • Standards10/100/1000Base-T
  • Network Media10/100/1000Base-T
  • Wavelength850 nm
  • Fiber CableTwisted Pair Optical Fiber
  • ProtocolsGigabit Ethernet
  • Gigabit Ethernet connectivity via 850 nm multimode fibre
  • Extends network links up to 550 m or 1804.46 ft
  • Compact 1.4" × 4.8" × 4.5" form factor fits tight spaces
  • Three ports: two RJ-45 and one duplex SC for flexible cabling
  • TAA-compliant and WEEE/RoHS certified for regulated environments

Compact Gigabit media converter

The Black Box LGC5151A converts 10/100/1000Base-T copper links to 850 nm multimode fibre across a single SC duplex port. It supports distances up to 550 m and is powered from an AC source, making it suitable for extending Ethernet between cabinets or buildings.

Suited for short-reach multimode links

Installers who need a simple copper-to-fibre bridge for Gigabit Ethernet will find this unit fits the task. It is not intended for single-mode fibre runs, for wavelengths other than 850 nm, or for deployments that require more than one fibre port per device.

Handles 550 m multimode spans

The converter comfortably covers campus or riser links up to the rated 550 m on standard multimode cable. Beyond that distance, or when the link budget demands a different wavelength, a separate solution is required.

Highlights

  • Gigabit Ethernet connectivity via 850 nm multimode fibre
  • Extends network links up to 550 m or 1804.46 ft
  • Compact 1.4" × 4.8" × 4.5" form factor fits tight spaces
  • Three ports: two RJ-45 and one duplex SC for flexible cabling
  • TAA-compliant and WEEE/RoHS certified for regulated environments

Specifications

BrandBlack Box
Device TypeTransceiver/Media Converter
Standards10/100/1000Base-T
Network Media10/100/1000Base-T
Wavelength850 nm
Fiber CableTwisted Pair Optical Fiber
ProtocolsGigabit Ethernet
Ports10/100/1000Base-T
Max Distance1804.46 ft
Transfer Rate10/100/1000Base-T
Shipping weight0.68 kg
Package size248 × 165 × 70 mm

Questions about this item

What type of AC power source does the LGC5151A require to operate?

The unit runs from a standard AC supply; no external DC adapter or PoE injection is needed.

Can I connect this media converter to an existing 100Base-FX multimode link running at 850 nm?

The converter uses Gigabit Ethernet at 850 nm, so it will not link with a 100Base-FX segment.

Which front-panel LEDs confirm that both the copper and fibre ports have established a Gigabit link?

Look for the Link/Act indicators on the two RJ-45 ports and the SC port; steady green on each shows a 1000 Mb/s connection.

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