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Small rectangular transceiver module with a silver metal body and a black LC optical port on the front face

HP

HP Gigabit LX LC mini-GBIC Transceiver J4859B

SKU CH-J3T7-D0FE2

Gigabit LC transceiver for 1 Gbit/s links over 62.5/125 µm, 50/125 µm or 9/125 µm fibre up to 1804.46 ft

  • Device TypeTransceiver
  • Gigabit speed for high-throughput links backed by 1 Gbit/s rate
  • Reaches 1804.46 ft over single-mode fiber for campus spans
  • Works with 9/125 µm, 50/125 µm and 62.5/125 µm cables for flexible plant
  • LC duplex connector fits standard patch panels using 1 x LC 1000Base-LX port
  • New HP J4859B module ready for immediate deployment in data networking

HP Gigabit LX LC Transceiver

The HP Gigabit LX LC mini-GBIC transceiver is a networking module built for data networking applications. It plugs into a compatible SFP port on a switch or router to provide a fiber uplink. The unit ships new and carries HP part numbers J4859B and 1005-0928.

Fiber connectivity and slot use

The transceiver presents one LC 1000Base-LX interface for optical fiber cabling. It accepts 9/125 µm single-mode fiber as well as 50/125 µm and 62.5/125 µm multi-mode fiber, giving flexibility across existing plant. Installing it occupies one SFP slot and frees copper ports for other devices. Builders who need longer reach than this module provides or who require a different wavelength must select another transceiver.

Sustained link behaviour

The module supports a maximum data transfer rate of 1 Gbit/s across distances up to 1804.46 ft. It maintains that line rate continuously over the fiber link without stepping down after a short burst. The optics are rated for both single-mode and multi-mode operation at the stated distance. Environments needing higher throughput or extended range beyond the specified maximum will need a different class of module.

Highlights

  • Gigabit speed for high-throughput links backed by 1 Gbit/s rate
  • Reaches 1804.46 ft over single-mode fiber for campus spans
  • Works with 9/125 µm, 50/125 µm and 62.5/125 µm cables for flexible plant
  • LC duplex connector fits standard patch panels using 1 x LC 1000Base-LX port
  • New HP J4859B module ready for immediate deployment in data networking

Specifications

Device TypeTransceiver

Questions about this item

What is the maximum link distance the J4859B can reach on single-mode fibre?

The transceiver supports up to 1804.46 ft on 9/125 µm single-mode fibre.

How much power does the module draw when running continuously in a switch?

The SFP form factor limits power to 1 W maximum, so sustained use stays within that envelope.

Which patch cables and switch ports are required to use this transceiver?

You need LC duplex patch cords in 9/125 µm single-mode or 50/125 µm and 62.5/125 µm multi-mode, plus an open SFP slot that accepts 1000Base-LX optics.

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