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Five black SFP transceiver modules in a row

Axiom

Axiom J4859C-5PK SFP transceiver 1.25 Gbps 1310nm SMF

SKU CH-AP5H-79N3A MPN J4859C-5PK

Pack of five 1.25 Gbps SFP transceivers for single-mode fibre at 1310 nm wavelength

  • Device TypeTransceiver
  • StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
  • Network MediaSMF
  • Wavelength1310nm
  • Transfer Rate1.25 Gbps
  • Temperature0° ~ 70° C
  • 25 Gbps transfer rate for fast network links
  • 1310 nm wavelength on single-mode fibre for long reach
  • IEEE 802.3 compliant for broad switch compatibility
  • Operating temperature 0 °C to 70 °C for rack environments
  • Five-module pack simplifies multi-port deployments

Axiom 1.25 Gbps SFP transceiver

The Axiom J4859C-5PK is a small form-factor pluggable transceiver delivering 1.25 Gbps over single-mode fibre. It targets network administrators upgrading or expanding enterprise switching infrastructure with standards-based 1310 nm optics.

Hot-plug installation in standard SFP cages

The module inserts directly into any compliant SFP port without tools or configuration. Alignment keys prevent incorrect orientation, and the latch releases with a simple pull. Dust caps must stay fitted until the fibre patch cord is ready, otherwise the optical interface can collect contaminants that degrade link budget.

Continuous operation from 0 °C to 70 °C

Rated for the full commercial temperature range, the transceiver maintains specified optical power and receiver sensitivity during sustained traffic loads. No performance derating occurs at the upper limit, so rack-mounted switches in warm aisles remain within design margins without additional airflow provisions.

Highlights

  • 25 Gbps transfer rate for fast network links
  • 1310 nm wavelength on single-mode fibre for long reach
  • IEEE 802.3 compliant for broad switch compatibility
  • Operating temperature 0 °C to 70 °C for rack environments
  • Five-module pack simplifies multi-port deployments

Specifications

BrandAxiom
Device TypeTransceiver
StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Network MediaSMF
Wavelength1310nm
Transfer Rate1.25 Gbps
Temperature0° ~ 70° C
Shipping weight0.09 kg
Package size1425 × 340 × 318 mm

Questions about this item

How can I verify the transceiver is operating correctly after installation?

Confirm the link establishes at 1.25 Gbps on the host port and that the module temperature stays within 0° ~ 70° C during operation.

What is included in the J4859C-5PK pack and what must be purchased separately?

The pack contains five Axiom SFP transceiver modules; compatible SMF patch cables with LC connectors are not included and must be sourced separately.

Which version or capacity of this transceiver should I choose for a 1.25 Gbps single-mode link?

The J4859C-5PK is a 1310 nm, 1.25 Gbps SMF module supplied as a five-pack, matching that exact speed and fibre type.

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