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Small rectangular SFP transceiver, matte metal body with LC duplex port and bail latch

AddOn

AddOn GLC-SX-MM-RGD-AO SFP 1000Base-SX

SKU CH-DY51-248KM

A hot-swappable SFP transceiver linking a Gigabit Ethernet port to a fiber-optic network via LC duplex

  • Hot-swappable SFP enables quick network upgrades
  • 1000Base-SX LC duplex supports multimode fiber links
  • Pre-loaded OEM configuration data ensures Cisco compliance
  • Compact 0.3" x 0.5" x 2.2" form factor fits dense chassis
  • Compatible with Cisco IE3000, IE3010, ASR 901, ASR 903 and more

What this module is and who uses it

The AddOn GLC-SX-MM-RGD-AO is an SFP transceiver built for Gigabit Ethernet links over multimode fibre. It plugs into a compatible switch or router slot and connects to an LC duplex patch cord. Network engineers deploying Cisco IE3000, IE3010, 2500 Connected Grid, 2000 Connected Grid Router, 3700 Series, ASR 901, ASR 903 or MWR 2941 hardware will find it initialises identically to the OEM part. Buyers needing single-mode reach or a different connector type cannot use this module.

Deciding specification — 1000Base-SX over LC duplex

The single figure that determines fit is the 1000Base-SX interface presented on an LC/PC duplex port. This wavelength and connector combination dictates the fibre patch cord and the maximum link distance the installation can support. If the design calls for a different optical standard or a simplex connector, this transceiver will not match the link budget or the physical patch panel.

Thermals, noise and power in normal use

The transceiver is a passive optical module with no moving parts, so it generates no audible noise. Heat output is limited to the low power draw typical of an SFP form factor, and the compact 0.3 by 0.5 by 2.2 inch body fits standard cages without blocking adjacent ports. No active cooling or extra airflow is required beyond what the host chassis already provides.

Highlights

  • Hot-swappable SFP enables quick network upgrades
  • 1000Base-SX LC duplex supports multimode fiber links
  • Pre-loaded OEM configuration data ensures Cisco compliance
  • Compact 0.3" x 0.5" x 2.2" form factor fits dense chassis
  • Compatible with Cisco IE3000, IE3010, ASR 901, ASR 903 and more

Specifications

BrandAddOn
ModelGLC-SX-MM-RGD-AO

Questions about this item

What does the 1000Base-SX rating deliver in a live switch?

It provides a 1 Gbps Ethernet link over multimode fiber using an LC duplex connector, suitable for short-range connections within a data center or campus network.

Which interface standard does the module use and what speed does it lock to?

The transceiver uses the SFP MSA form factor with a single 1000Base-SX port, so it negotiates only at 1 Gbps and cannot run at 10 Gbps or 100 Mbps.

What physical space and slot type are needed to install this transceiver?

It fits a standard SFP cage measuring 0.3" high, 0.5" wide and 2.2" deep, and requires an LC duplex patch cable for the fiber connection.

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