Intel SFP-10GLRM-31-I Compatible 10G SFP+ LRM Transceiver Module
The SFP-10GLRM-31-I compatible module serves equipment requiring a 10G SFP+ interface with 1310nm optics and a 220m on OM3 / 1.4km on SMF 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: SFP-10GLRM-31-IHT Part Number: SFP-10GLRM-31-I
Product Highlights
- Compatible alternative to Intel SFP-10GLRM-31-I
- 10G connectivity at 10.3125Gbps
- Optical wavelength: 1310nm
- Specified reach: 220m on OM3 / 1.4km on SMF
- Duplex LC / MMF/SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: -40 to 85°C (-40 to 185°F)
Specifications
| HT Part Number | SFP-10GLRM-31-I |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP+ |
| Max. Data Rate | 10.3125Gbps |
| Wavelength | 1310nm |
| Max. Transmission Distance | 220m@OM3/1.4km@SMF |
| Connector | Duplex LC |
| Media | MMF/SMF |
| Transmitter Type | FP 1310nm |
| Receiver Type | PIN |
| TX Power | -8.2~0.5dBm |
| Receiver Sensitivity | <-14.4dBm |
| Power Budget | 6.2dB |
| Receiver Overload | 0.5dBm |
| Max. Power Consumption | ≤1W |
| Extinction Ratio | >3.5dB |
| DDM/DOM | Supported |
| Operating Temperature | -40 to 85°C (-40 to 185°F) |
| Core Size | 50/125µm@OM3 MMF, 9/125μm@SMF |
| Modulation | NRZ |
| Protocols | IEEE 802.3ae, SFF-8472, SFF-8431, SFF-8432, SFP+ MSA Compliant, CPRI, eCPRI |
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.
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.
For this multimode module, confirm fiber grade, modal bandwidth and total loss before commissioning. The 220m on OM3 / 1.4km on SMF figure applies only under suitable cabling conditions. Inspect every Duplex LC mating point and match the remote optical standard.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -8.2~0.5dBm; receiver sensitivity is <-14.4dBm; the stated optical power budget is 6.2dB. 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 10.3125Gbps, wavelength 1310nm, rated reach 220m on OM3 / 1.4km on SMF.
Intel Compatibility and Factory Testing
The module is checked for host recognition as SFP-10GLRM-31-I, 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
Use SFP-10GLRM-31-I as the compatibility cross-reference and SFP-10GLRM-31-I 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 Intel transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-10GLRM-31-I, not an original Intel-branded module.
Which fiber and connector are required?
Use Duplex LC with MMF/SMF. The specified maximum reach is 220m on OM3 / 1.4km on SMF, 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.