Arista Networks SFP-10G-LR-I Compatible 10G SFP+ LR Transceiver Module
The SFP-10G-LR-I compatible module serves equipment requiring a 10G SFP+ interface with the listed wavelength plan optics and a the stated reach rating. Connection is through LC duplex. 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-10G-LR-IHT Part Number: SFP-10GLR-31
Product Highlights
- Compatible alternative to Arista Networks SFP-10G-LR-I
- 10G connectivity at 10.3125Gbps
- LC duplex / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: -40 to 85°C (-40 to 185°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| Arista Networks Compatible | SFP-10G-LR-I |
|---|---|
| Manufacturer | HT |
| HT Part Number | SFP-10GLR-31 |
| Form Factor | SFP+ |
| Max. Data Rate | 10.3125Gbps |
| Connector | LC duplex |
| Cable Type | SMF |
| Transmitter Type | DFB |
| Receiver Type | PIN |
| TX Power | -8.2~0.5dBm |
| Cable Distance | 10km |
| Power Budget | 6.2dB |
| Receiver Sensitivity | -14.4dBm |
| Max. Power Consumption | ≤1W |
| Receiver Overload | 0.5dBm |
| DDM/DOM | Supported |
| Operating Temperature | -40 to 85°C (-40 to 185°F) |
| Core Size | 9/125µm |
| Modulation | NRZ |
| Protocols | IEEE 802.3ae, SFF-8431, SFF-8472, SFP+ MSA, SFF-8432, CPRI, eCPRI |
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 the rated distance. Inspect every LC duplex connection and record diagnostic power where supported. Both ends must agree on rate, wavelength and 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.
Arista Networks Compatibility and Factory Testing
The module is checked for host recognition as SFP-10G-LR-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-10G-LR-I as the compatibility cross-reference and SFP-10GLR-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.
Quality Assurance and Packaging
Each SFP-10G-LR-I compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. Customer references, rack groups and project packing lists can be added for volume orders.
Frequently Asked Questions
Is this an original Arista Networks transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-10G-LR-I, not an original Arista Networks-branded module.
Which fiber and connector are required?
Use LC duplex with SMF. The specified maximum reach is the distance stated in the specifications, 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.