Netgear SFP2.5G-FX-31 Compatible 2.5G SFP IX Transceiver Module
This Netgear SFP2.5G-FX-31 compatible transceiver provides 2.5G connectivity in a hot-swappable SFP package. Its optical design operates at 1310nm for up to 2km, using Duplex LC. Complete parameters and related OEM references help procurement teams match an equipment parts list to a clearly defined optical product.
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 Number | SFP2.5G-FX-31 |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max Data Rate | 2.5Gbps |
| Wavelength | 1310nm |
| Max Cable Distance | 2km |
| Connector | Duplex LC |
| Media | SMF |
| Transmitter Type | FP |
| Receiver Type | PIN |
| TX Power | -10~-3dBm |
| Receiver Sensitivity | < -18dBm |
| Power Budget | 8dB |
| Receiver Overload | -3dBm |
| Power Consumption | 1W |
| Extinction Ratio | ＞8.2dB |
| DDM/DOM | Supported |
| Inbuilt FEC | No |
| Operating Temperature Range | -10 to 70°C (14 to 158°F) |
| Protocols | SFP MSA(INF-8074i), GR-253-CORE, ITU-T G.957, FC-PI v2.0, SFF-8472 v9.5 |
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.
The single-mode link budget should include fiber attenuation, connectors, splices and panels over the intended 2km route. Keep the Duplex LC interface clean and match the remote optical standard. Consider receiver overload as well as insufficient power on short links.
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.
Procurement and Asset Identification
A useful purchase order identifies the host platform, expected OEM code and optical standard separately. This prevents a module with the same housing but another wavelength, reach or identification profile from being substituted. For mixed deployments, keep one order line per OEM reference and reconcile each received unit with its intended port. For this model, the principal parameters are data rate 2.5Gbps, wavelength 1310nm, rated reach 2km.
Netgear Compatibility and Factory Testing
The module is checked for host recognition as SFP2.5G-FX-31, link establishment and diagnostic reporting. Physical cage fit alone is not treated as evidence of compatibility. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Ordering Information
Quote HT part number SFP2.5G-FX-31 together with OEM reference SFP2.5G-FX-31 and quantity. Add the host model and software release when pre-order verification is required. Neutral labels, customer packaging and project-specific compatibility review are available on request.
Quality Assurance and Packaging
Before packing, the module receives interface inspection, identification and link checks. Protective packaging avoids pressure on the connector and latch. Customer references, rack groups and project packing lists can be added for volume orders.
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.
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.