Netgear SFP2.5G-FX-31 Compatible 2.5G SFP IX Transceiver Module

Netgear SFP2.5G-FX-31 Compatible 2.5G SFP IX Transceiver Module

Built for hosts recognizing SFP2.5G-FX-31, this HT-manufactured SFP module delivers 2.5G transmission at 1310nm. Its rated reach is 2km, with Duplex LC as the physical interface. The specifications and engineering guidance below support installers plan a serviceable optical connection at the equipment rack, while keeping HT manufacture separate from the OEM cross-reference.

OEM Part Number: SFP2.5G-FX-31HT Part Number: SFP2.5G-FX-31

Product Highlights

  • Compatible alternative to Netgear SFP2.5G-FX-31
  • 2.5G connectivity at 2.5Gbps
  • Optical wavelength: 1310nm
  • Specified reach: 2km
  • Duplex LC / SMF interface
  • Digital diagnostic monitoring: Supported
  • Factory compatibility verification and optical performance testing before shipment

Specifications

HT Part NumberSFP2.5G-FX-31
ManufacturerHT
Form FactorSFP
Max Data Rate2.5Gbps
Wavelength1310nm
Max Cable Distance2km
ConnectorDuplex LC
MediaSMF
Transmitter TypeFP
Receiver TypePIN
TX Power-10~-3dBm
Receiver Sensitivity< -18dBm
Power Budget8dB
Receiver Overload-3dBm
Power Consumption1W
Extinction Ratio>8.2dB
DDM/DOMSupported
Inbuilt FECNo
Operating Temperature Range-10 to 70°C (14 to 158°F)
ProtocolsSFP MSA(INF-8074i), GR-253-CORE, ITU-T G.957, FC-PI v2.0, SFF-8472 v9.5

Rack Integration and Service Access

Plan the fiber route before removing connector protection. The patch lead should follow its manager without pulling on the transceiver, while leaving space to release the latch and service adjacent ports. Protect the end face until final connection and avoid tight bends immediately behind warm exhaust air. For this model, the principal parameters are data rate 2.5Gbps, wavelength 1310nm, rated reach 2km.

Applications and Optical Link Design

Use this module for equipment interconnection over the specified single-mode fiber plant, including enterprise backbone, campus, metro or data-center interconnect links according to its rated distance. Confirm that both ends use the same optical standard and wavelength plan, and allow for connector, splice and patch-panel loss within the stated power budget.

Before deployment, check the host port type, supported data rate and firmware requirements. The 2.5G interface configuration must match the remote equipment; sharing a SFP housing alone does not make two transceiver types interoperable.

Before commissioning, measure the complete single-mode channel against the stated budget for 2km. Inspect every Duplex LC connection and record diagnostic power where supported. Both ends must agree on rate, wavelength and optical standard.

Optical Acceptance, Diagnostics and Handling

For this model, the specified transmit-power range is -10~-3dBm; receiver sensitivity is < -18dBm; the stated optical power budget is 8dB. A sound acceptance record includes link state, diagnostic temperature, supply voltage and transmit or receive levels where the host exposes them. Compare the readings with the stated ranges rather than treating any received light as proof of adequate margin. Persistent alarms or borderline values should trigger an end-face and complete-channel inspection. Diagnostic monitoring is listed as Supported. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.

Quality Assurance and Packaging

Quality control covers the optical or electrical interface, host identification and operating link. The verified unit is then individually protected and cartoned. Customer references, rack groups and project packing lists can be added for volume orders.

Netgear Compatibility and Factory Testing

Compatibility testing for SFP2.5G-FX-31 combines identification with a live link and available transmit, receive and alarm information. Connector condition is inspected separately. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.

Frequently Asked Questions

Is this an original Netgear transceiver?

No. It is an HT-manufactured compatible alternative for equipment that specifies SFP2.5G-FX-31, not an original Netgear-branded module.

Which fiber and connector are required?

Use Duplex LC with SMF. The specified maximum reach is 2km, 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.

Ordering Information

When ordering, specify SFP2.5G-FX-31, SFP2.5G-FX-31, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. Neutral labels, customer packaging and project-specific compatibility review are available on request.

Shipping and Lead Time

Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.


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