
The SFP2.5G-LX-31 compatible module serves equipment requiring a 2.5G SFP interface with 1310nm optics and a 15km rating. Connection is through Duplex LC. Product data, application guidance and factory verification are presented together to support mixed-vendor networks document the correct compatibility identity at each host.
OEM Part Number: SFP2.5G-LX-31HT Part Number: SFP2.5G-LX-31
| HT Part Number | SFP2.5G-LX-31 |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max Data Rate | 2.5Gbps |
| Wavelength | 1310nm |
| Max Cable Distance | 15km |
| Connector | Duplex LC |
| Media | SMF |
| Transmitter Type | DFB |
| Receiver Type | PIN |
| TX Power | -5~0dBm |
| Receiver Sensitivity | < -18dBm |
| Power Budget | 13dB |
| Receiver Overload | 0dBm |
| 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 Compliant |
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 15km. Inspect every Duplex LC connection and record diagnostic power where supported. Both ends must agree on rate, wavelength and optical standard.
For this model, the specified transmit-power range is -5~0dBm; receiver sensitivity is < -18dBm; the stated optical power budget is 13dB. During commissioning, record the host diagnostic readings after the link has stabilized and compare them with those limits. DOM values are useful operational indicators, but they do not replace calibrated optical measurements when a link is marginal. Investigate unexpected loss through connector inspection, cleaning and a channel measurement before replacing the module. 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.
A mixed-vendor optical link should be documented at both ends, not treated as one generic connection. Confirm which OEM identity each host expects and whether both ends use the same wavelength plan and optical standard. Related links locate equivalent hardware, but brand-specific identification must still be selected independently. For this model, the principal parameters are data rate 2.5Gbps, wavelength 1310nm, rated reach 15km.
Compatibility testing for SFP2.5G-LX-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.
Use SFP2.5G-LX-31 as the compatibility cross-reference and SFP2.5G-LX-31 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.
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.
No. It is an HT-manufactured compatible alternative for equipment that specifies SFP2.5G-LX-31, not an original Netgear-branded module.
Use Duplex LC with SMF. The specified maximum reach is 15km, subject to fiber quality and total link loss.
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.
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.