Transition Networks TN-J4859C Sfp 1000BASE-LX Transceiver

Product Description

The TRANSITION NETWORKS TN-J4859C is a Small Form-factor Pluggable (SFP) fiber optic transceiver module rated for 1000BASE-LX Gigabit Ethernet operation. Designed as a hot-swappable, single-mode fiber transceiver, it converts electrical network signals to long-wavelength optical signals for data transmission over fiber infrastructure. Network technicians and systems integrators install this module in compatible SFP-equipped switches, routers, and media converters to extend Gigabit Ethernet links over single-mode fiber runs. The 1000BASE-LX standard supports longer-distance backbone and campus network connections where multimode SFP modules would fall short.

The TN-J4859C is suited for enterprise network deployments where Gigabit fiber uplinks are required between switches or between distribution and access layer equipment. It is specified as HP compatible, making it applicable in network environments that include HP-branded switching infrastructure. Typical installation scenarios include data center interconnects, campus backbone fiber runs, and wiring closet-to-core switch uplinks where a standards-based 1000BASE-LX SFP form factor is required.

Key Features

• 1000BASE-LX standard for Gigabit Ethernet over single-mode fiber
• SFP form factor supports hot-swap installation without powering down host equipment
• Specified as compatible with HP networking equipment
• Single-unit packaging for individual port upgrades or replacements
• Long-wavelength optics suited for extended fiber reach in campus and enterprise backbone applications

Compatibility

Specified as HP compatible for use in HP-branded SFP-equipped network switches and related equipment. Designed as an OEM-style replacement or third-party alternative SFP transceiver for 1000BASE-LX SFP slots in compatible enterprise networking devices.

Installation Notes

Installation is performed by qualified network technicians familiar with fiber optic handling and SFP module procedures. The host switch or router port does not require a full power-down for hot-swap insertion, but fiber connections should be cleaned before mating to avoid signal degradation. Avoid exposure of fiber connector endfaces to dust and never look directly into an active fiber port. Follow the host equipment manufacturer guidelines for SFP insertion force and latch engagement to prevent damage to the module or cage.