Cisco ONS-SC-GE-SX Compatible 1000BASE-SX SFP 850nm 550m

Cisco
SFP
1.25G
Duplex
550 m
ONS-SC-GE-SX Cisco Compatible 1G 550M MMF SFP Transceiver

Cisco compatible ONS-SC-GE-SX - Key Features

  • Compatibility: Cisco
  • Media Type: Multi-Mode Fiber (MMF)
  • Fiber Count: Duplex
  • Connector: Double LC/UPC
  • Maximum Distance: 550 m
  • Average Link Budget: 7.5 dB
  • Tx Wavelength: 850 nm
  • Supported Data Rate: 1.063 Gbps - 1.25 Gbps
  • DDM/DOM: Supported
  • Temperature Range: Standard 0°-70°C

Cisco ONS-SC-GE-SX Price

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Cisco compatible ONS-SC-GE-SX Specifications

Form Factor
SFP
Media Type
Multi-Mode Fiber (MMF)
Fiber Count
Duplex
Connector
Double LC/UPC
Maximum Distance
550 m
Average Link Budget
7.5 dB
TX Wavelength
850 nm
RX Wavelength
850 nm
Supported Data Rate
1.063 Gbps - 1.25 Gbps
Supported Ethernet Applications
Gigabit Ethernet (1.25 Gbps)
Supported Fiber Channel Applications
1G Fiber Channel (1.0625 Gbps)
DDM/DOM
Supported
Tx Wavelength Bandwidth
20 nm (840-860 nm)
Rx Wavelength Bandwidth
20 nm (840-860 nm)
Minimum Transmitting Power
-9.5 dBm
Maximum Transmitting Power
3 dBm
Receiver Sensitivity
-17 dBm
Receiver Overload
-3 dBm
Dispersion
110 ps/nm ps/nm
Transmitter Type
VSCEL Laser
Receiver Type
PIN photodiode
Temperature Range
Standard 0°-70°C
Power
+3.3V single power supply
Compliance
CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, INF-8074i, RoHS, SFP MSA

Cisco compatible ONS-SC-GE-SX Datasheet

v3

Complete technical specifications and product details

Updated:Jan 16, 2026Format:PDF

Cisco compatible ONS-SC-GE-SX Description

EdgeOptic's ONS-SC-GE-SX compatible is a Cisco-coded version of the EdgeOptic 1.25G-SFP-550D multi-vendor 1000BASE-SX transceiver. It runs Gigabit Ethernet at 1.25 Gbps (IEEE 802.3z) and 1G Fibre Channel SW at 1.0625 Gbps over duplex multimode fiber, with an 850 nm VCSEL transmitter and a PIN photodiode receiver.

The module carries a 7.5 dB optical budget, reaching 550 m over OM2 multimode fiber (50/125, 500 MHz·km) and 275 m over OM1 (62.5/125). Cisco publishes matching optical figures for this part number, a minimum launch power of -9.5 dBm and a receiver sensitivity of -17 dBm. The interface is duplex LC/UPC, with DDM/DOM diagnostics reporting optical power, bias current and temperature. Supply is +3.3V and the operating range is 0 to 70°C. The module is built to the INF-8074i SFP MSA, CE/RoHS certified, Class 1 laser safety.

ONS-SC-GE-SX is Cisco's ordering code for a short-reach Gigabit Ethernet SFP on the ONS 15454 line. Cisco lists it among the supported pluggables for the ML1000-2 card on ONS 15454 and ONS 15454 SDH. The optic is a Gigabit Ethernet client module; Ethernet-over-SONET/SDH mapping on that platform is handled by the line card. Cisco documents the part as Gigabit Ethernet only, so the 1G Fibre Channel mode is the EdgeOptic module's own capability. EdgeOptic codes the EEPROM with Cisco-recognized data so the module is accepted on Cisco platforms. Confirm the supported pluggable list for your card before ordering.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For ordering-code confirmation or platform questions, contact our sales team.

Frequently Asked Questions

Is ONS-SC-GE-SX the same as ONS-GC-GE-SX?

No, they are different form factors and will not fit the same cage. Cisco lists ONS-SC-GE-SX in its SFP specifications table and among the supported pluggables for the SFP-based ML1000-2 card, while ONS-GC-GE-SX appears against the GBIC-based cards (E1000-2, G1K-4/G1000-4, CE-1000-4) alongside Cisco's GBIC part numbers. EdgeOptic's compatible here is the SFP. Check the supported pluggable table for your specific card in Cisco's ONS 15454 documentation before ordering.

What is the difference between ONS-SC-GE-SX and ONS-SI-GE-SX?

Cisco documents them as two separate part numbers with different top assembly numbers, 10-2301-01 for ONS-SC-GE-SX and 10-2295-01 for ONS-SI-GE-SX, and the card support lists differ: ONS-SC-GE-SX is listed for the ML1000-2 card, while ONS-SI-GE-SX is also listed for the ML-MR-10, CE-MR-10 and CE-MR-6 cards. Match the part number to the pluggable list published for your card, or contact our sales team and we will help confirm the right code.