10/100BASE-T SFPH3C SFP-10GMELR-31-I Compatible 10G SFP+ LR Transceiver Module
Built for hosts recognizing SFP-10GMELR-31-I, this HT-manufactured SFP+ module delivers 10G transmission at 1310nm. Its rated reach is 20km, with Duplex LC as the physical interface. The specifications and engineering guidance below support high-density deployments balance optical performance, port access and thermal planning, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: SFP-10GMELR-31-IHT Part Number: SFP-10GMELR-31-I
Product Highlights
- Compatible alternative to H3C SFP-10GMELR-31-I
- 10G connectivity at 1/10.3125Gbps
- Optical wavelength: 1310nm
- Specified reach: 20km
- Duplex LC / SMF interface
- Operating temperature: -40 to 85°C (-40 to 185°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| HT Part Number | SFP-10GMELR-31-I |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP+ |
| Max. Data Rate | 1/10.3125Gbps |
| Wavelength | 1310nm |
| Max. Transmission Distance | 20km |
| Connector | Duplex LC |
| Media | SMF |
| Transmitter Type | DFB |
| Receiver Type | PIN |
| TX Power | -2~4dBm |
| Receiver Sensitivity | <-12.6dBm |
| Power Budget | 12.4dB |
| Receiver Overload | 1dBm |
| Max. Power Consumption | ≤1.0W |
| Extinction Ratio | 3.5dB |
| Core Size | 9/125µm |
| Modulation | NRZ |
| Operating Temperature | -40 to 85°C (-40 to 185°F) |
| Protocols | IEEE 802.3ae, SFF-8472, SFF-8431, SFF-8432, SFP+ MSA Compliant, CPRI, eCPRI, 10GFC, FC-PI-4 |
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 20km. 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
Each SFP-10GMELR-31-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.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -2~4dBm; receiver sensitivity is <-12.6dBm; the stated optical power budget is 12.4dB. 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. 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.
High-Density Port and Thermal Planning
In a densely populated chassis, connector access and airflow form part of the optical-link design. Confirm that neighboring modules and patch leads leave room for latch operation, and include listed power consumption in the host thermal budget. Assess port density together with fiber management. For this model, the principal parameters are data rate 1/10.3125Gbps, wavelength 1310nm, rated reach 20km.
Ordering Information
Use SFP-10GMELR-31-I as the compatibility cross-reference and SFP-10GMELR-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.
H3C Compatibility and Factory Testing
Compatibility testing for SFP-10GMELR-31-I 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.
Frequently Asked Questions
Is this an original H3C transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-10GMELR-31-I, not an original H3C-branded module.
Which fiber and connector are required?
Use Duplex LC with SMF. The specified maximum reach is 20km, 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.
