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Cisco SFP-1G-SX Compatible 1G SFP Transceiver Module

Cisco SFP-1G-SX Compatible 1G SFP Transceiver Module

This compatible version of Cisco SFP-1G-SX combines 1G operation with a SFP host interface and wavelength 850nm, reach 550m on 50 / 125µm OM2 MMF275m on 62.5 / 125µm OM1 MMF220m on 62.5 / 125µm FDDI MMF. Compatibility coding and diagnostic operation are checked before delivery.

OEM Part Number: SFP-1G-SXHT Part Number: SFP1G-SX-85

Product Highlights

  • Compatible alternative to Cisco SFP-1G-SX
  • 1G connectivity at 1.25Gbps
  • Optical wavelength: 850nm
  • Specified reach: 550m on 50 / 125µm OM2 MMF275m on 62.5 / 125µm OM1 MMF220m on 62.5 / 125µm FDDI MMF
  • Duplex LC / MMF interface
  • Digital diagnostic monitoring: Supported
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

Cisco CompatibleSFP-1G-SX
ManufacturerHT
HT Part NumberSFP1G-SX-85
Form FactorSFP
Max. Data Rate1.25Gbps
Wavelength850nm
Max. Cable Distance550m@50/125µm OM2 MMF275m@62.5/125µm OM1 MMF220m@62.5/125µm FDDI MMF
ConnectorDuplex LC
MediaMMF
Transmitter TypeVCSEL
Receiver TypePIN
DDM/DOMSupported
Commercial Temperature Range0 to 70°C (32 to 158°F)
TX Power-9.5~-3dBm
Receiver Sensitivity< -17dBm
Typical Power Consumption≤0.8W
Receiver Overload-3dBm
Bit Error Ratio (BER)1E-12
Extinction Ratio>9dB
EMC (Electro Magnetic Compatibility)Supported
MTBF (SX)2,457,002 Hours
ProtocolsIEEE 802.3z, SFF-8472, SFP MSA (INF-8074i) Compliant

Applications and Deployment

Typical deployments include switch-to-switch, switch-to-server and aggregation links inside a data hall or between adjacent equipment rooms. The Duplex LC interface connects to the specified multimode cabling, and the stated reach depends on fiber grade and link loss. Keep this interface on the matching multimode optical standard rather than connecting it directly to a single-mode wavelength or reach variant.

Before deployment, check the host port type, supported data rate and firmware requirements. The 1G interface configuration must match the remote equipment; sharing a SFP housing alone does not make two transceiver types interoperable.

Cisco Compatibility and Testing

The module is programmed for equipment that recognizes the SFP-1G-SX part number. Before shipment, we check EEPROM identification, link establishment and diagnostic readouts, then verify transmit and receiver performance against the stated optical specifications. Host hardware and software revisions can affect third-party module acceptance, so customers can provide the switch model and software release for a compatibility check before ordering.

Ordering Information

Quote HT part number SFP1G-SX-85 together with OEM part number SFP-1G-SX and the required quantity. Standard modules use our factory label; neutral labels, customer-branded packaging and project-specific compatibility coding are available on request. For mixed-brand installations, select the corresponding brand-specific page instead of assuming one EEPROM version fits every platform.

Frequently Asked Questions

Is this an original Cisco transceiver?

No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-1G-SX, not an original Cisco-branded module.

Which fiber and connector are required?

Use Duplex LC with MMF. The specified maximum reach is 550m on 50 / 125µm OM2 MMF275m on 62.5 / 125µm OM1 MMF220m on 62.5 / 125µm FDDI MMF, subject to fiber quality and total link loss.

Can it be mixed with another wavelength or reach version?

Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.

Quality Assurance and Packaging

Each unit undergoes optical performance checks, compatibility verification and visual inspection before packing. Modules are supplied in protective blister trays or anti-static packaging and then cartoned for transport. Custom labels and project packing lists can be added for volume orders.

Shipping and Lead Time

Standard products normally ship within one to three working days. Worldwide courier, air freight and sea freight options are available, and shipments can also be sent on your own courier account or delivered to an appointed forwarder.

 

Get a quick quote

Please write to sales@huihongfiber.com, we will reply as soon as possible.


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