Intel SFP-25GLRL-31-I Compatible 25G SFP28 LR Transceiver Module

Intel SFP-25GLRL-31-I Compatible 25G SFP28 LR Transceiver Module

The SFP-25GLRL-31-I compatible module serves equipment requiring a 25G SFP28 interface with 1310nm optics and a 2km rating. Connection is through Duplex LC. Product data, application guidance and factory verification are presented together to support data-center designers evaluate optical reach, rack integration and host compatibility together.

OEM Part Number: SFP-25GLRL-31-IHT Part Number: SFP-25GLRL-31-I

Product Highlights

  • Compatible alternative to Intel SFP-25GLRL-31-I
  • 25G connectivity at 25.78Gbps
  • Optical wavelength: 1310nm
  • Specified reach: 2km
  • Duplex LC / SMF interface
  • Digital diagnostic monitoring: Supported
  • Operating temperature: -40 to 85°C (-40 to 185°F)

Specifications

HT Part NumberSFP-25GLRL-31-I
ManufacturerHT
Form FactorSFP28
Max Data Rate25.78Gbps
Wavelength1310nm
Max Cable Distance2km
ConnectorDuplex LC
MediaSMF
Transmitter TypeDFB 1310nm
Receiver TypePIN
TX Power-7-2.5dBm
Receiver Sensitivity<-12dBm
Power Budget5dB
Receiver Overload2dBm
Power Consumption≤1.2W
Extinction Ratio3dB
DDM/DOMSupported
Industrial Temperature Range-40 to 85°C (-40 to 185°F)
CDRTX & RX Built-in CDR
FEC FunctionNot Support
ProtocolsSFP28 MSA, SFF-8472
Core SizeG.652
Packaging TechnologyBOX Packaging

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.

The industrial temperature rating makes this version appropriate for controlled outdoor cabinets, transport nodes and other installations exposed to wider ambient temperature variation. Adequate airflow, protected cable routing and host-platform temperature limits still apply.

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.

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.

Optical Acceptance, Diagnostics and Handling

For this model, the specified transmit-power range is -7-2.5dBm; receiver sensitivity is <-12dBm; the stated optical power budget is 5dB. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. 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.

Data-Center Optical Design and Airflow

Select the module by optical standard, reach and rack layout. Check the complete fiber channel, including panels and connectors, and keep dense bundles from blocking front-panel airflow. Account for listed power consumption and preserve enough space to remove a module without disturbing adjacent links. For this model, the principal parameters are data rate 25.78Gbps, wavelength 1310nm, rated reach 2km.

Ordering Information

When ordering, specify SFP-25GLRL-31-I, SFP-25GLRL-31-I, 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.

Intel Compatibility and Factory Testing

Factory verification starts with the expected SFP-25GLRL-31-I 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.

Frequently Asked Questions

Is this an original Intel transceiver?

No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-25GLRL-31-I, not an original Intel-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.


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