Netgear SFP2.5G-SX-85 Compatible 2.5G SFP SX Transceiver Module
The SFP2.5G-SX-85 compatible module serves equipment requiring a 2.5G SFP interface with 850nm optics and a 300m rating. Connection is through Duplex LC. Product data, application guidance and factory verification are presented together to support procurement teams match an equipment parts list to a clearly defined optical product.
OEM Part Number: SFP2.5G-SX-85HT Part Number: SFP2.5G-SX-85
Product Highlights
- Compatible alternative to Netgear SFP2.5G-SX-85
- 2.5G connectivity at 2.5Gbps
- Optical wavelength: 850nm
- Specified reach: 300m
- Duplex LC / MMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: -10 to 70°C (14 to 158°F)
Specifications
| HT Part Number | SFP2.5G-SX-85 |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max Data Rate | 2.5Gbps |
| Wavelength | 850nm |
| Max Cable Distance | 300m |
| Connector | Duplex LC |
| Media | MMF |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| TX Power | -10~-3dBm |
| Receiver Sensitivity | < -18dBm |
| Power Budget | 9dB |
| Receiver Overload | -3dBm |
| Power Consumption | 1W |
| Extinction Ratio | ＞8.2dB |
| DDM/DOM | Supported |
| Inbuilt FEC | No |
| Commercial 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
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 2.5G interface configuration must match the remote equipment; sharing a SFP housing alone does not make two transceiver types interoperable.
The multimode channel should use the fiber grade associated with the stated 300m reach. Keep the Duplex LC end faces clean and avoid tight bends. Different multimode standards are not interchangeable merely because they share a connector.
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 9dB. 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 850nm, rated reach 300m.
Netgear Compatibility and Factory Testing
Factory verification starts with the expected SFP2.5G-SX-85 identity and finishes with an operating host link. EEPROM data, diagnostic visibility and the stated optical parameters are assessed together. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Ordering Information
Use SFP2.5G-SX-85 as the compatibility cross-reference and SFP2.5G-SX-85 as the HT ordering identity. Keep other reaches or wavelength directions on separate order lines. Neutral labels, customer packaging and project-specific compatibility review are available on request.
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.
Frequently Asked Questions
Is this an original Netgear transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies SFP2.5G-SX-85, not an original Netgear-branded module.
Which fiber and connector are required?
Use Duplex LC with MMF. The specified maximum reach is 300m, 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.