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Small rectangular SFP module with metal housing and bail latch

Transition Networks

Transition Networks C3110-1039 1000Base-T to 1000Base-SX SFP transceiver

SKU CH-6QPJ-EW6DK MPN C3110-1039

Gigabit media converter module bridges 1000Base-T copper and 1000Base-SX fibre links

  • FeatureNetwork Technology:1000Base-SX Network Technology:1000Base-T
  • Gigabit copper-to-fibre conversion with 1000Base-T and 1000Base-SX support
  • Reliable link extension using multimode fibre at 1000 Mbps
  • Transition Networks quality in a compact SFP form factor
  • Hot-swappable module simplifies network upgrades without downtime
  • Manufacturer listed May 30 2026 ensuring current production stock

Media converter module

The Transition Networks C3110-1039 is a Gigabit Ethernet media converter module designed to bridge copper and fibre networks. It converts 1000Base-T signals to 1000Base-SX for multimode fibre links. Network engineers use it to extend LAN connections beyond the reach of standard copper cabling. The module fits standard SFP slots in compatible switches and routers.

Sustained link reliability

The transceiver maintains a steady 1000 Mbps data rate across the fibre segment without the signal degradation seen on long copper runs. It handles continuous traffic loads typical of backbone uplinks and building-to-building links. The optical interface isolates the connection from electromagnetic interference that can disrupt copper cables in industrial environments. Performance remains consistent over the full multimode distance range.

1000Base-SX multimode interface

The single specification that determines fit is the 1000Base-SX multimode fibre interface with an LC connector. Buyers must verify that the link distance and fibre type match the SX standard for their installation. This module does not support single-mode fibre or 1000Base-LX wavelengths. It is not for links that require longer reach than the SX specification allows.

Highlights

  • Gigabit copper-to-fibre conversion with 1000Base-T and 1000Base-SX support
  • Reliable link extension using multimode fibre at 1000 Mbps
  • Transition Networks quality in a compact SFP form factor
  • Hot-swappable module simplifies network upgrades without downtime
  • Manufacturer listed May 30 2026 ensuring current production stock

Specifications

BrandTRANSITION
FeatureNetwork Technology:1000Base-SX
Network Technology:1000Base-T
Shipping weight0.91 kg
Package size200 × 140 × 60 mm

Questions about this item

How much heat and power does the C3110-1039 generate when running continuously?

As a passive SFP transceiver the module draws minimal power and produces negligible heat, so it adds no audible noise or thermal load to a switch that runs all day.

What equipment must I already have for the C3110-1039 to function?

You need a switch or media converter with an open SFP slot that accepts 1000Base-T or 1000Base-SX modules and the appropriate multimode fibre patch cord for the SX side.

Will the C3110-1039 interoperate with older 1000Base-T copper gear I keep in the rack?

Yes, the copper side negotiates 1000Base-T so it links directly to legacy Gigabit Ethernet ports while the fibre side carries the same traffic over multimode SX.

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