
Built for hosts recognizing SFP-10G-LRM, this HT-manufactured SFP+ module delivers 10G transmission at 1310nm. Its rated reach is 220m on OM3 / 300m on SMF, with Duplex LC as the physical interface. The specifications and engineering guidance below support data-center designers evaluate optical reach, rack integration and host compatibility together, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: SFP-10G-LRMHT Part Number: SFP-10GLRM-31
| Cisco Compatible | SFP-10G-LRM |
|---|---|
| Manufacturer | HT |
| HT Part Number | SFP-10GLRM-31 |
| Form Factor | SFP+ |
| Max. Data Rate | 10.3125Gbps |
| Wavelength | 1310nm |
| Max. Transmission Distance | 220m@OM3/300m@SMF |
| Connector | Duplex LC |
| Transmitter Type | FP 1310nm |
| Media | MMF/SMF |
| DOM Support | Yes |
| TX Power | -6.5~-0.5dBm |
| Receiver Sensitivity | < -8.4dBm |
| Max. Power Consumption | ≤1W |
| Receiver Overload | +1.5dBm |
| Core Size | 50/125µm@OM3 MMF, 9/125μm@SMF |
| Modulation | NRZ |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| Bit Error Ratio (BER) | 1E-12 |
| Protocols | IEEE 802.3ae, SFF-8472, SFF-8431, SFF-8432, SFP+ MSA Compliant, CPRI, eCPRI |
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.
Before deployment, check the host port type, supported data rate and firmware requirements. The 10G interface configuration must match the remote equipment; sharing a SFP+ housing alone does not make two transceiver types interoperable.
The multimode channel should use the fiber grade associated with the stated 220m on OM3 / 300m on SMF reach. Keep the Duplex LC end faces clean and avoid tight bends. Different multimode standards are not interchangeable merely because they share a connector.
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.
For this model, the specified transmit-power range is -6.5~-0.5dBm; receiver sensitivity is < -8.4dBm. 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. 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.
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 10.3125Gbps, wavelength 1310nm, rated reach 220m on OM3 / 300m on SMF.
Use SFP-10G-LRM as the compatibility cross-reference and SFP-10GLRM-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.
Factory verification starts with the expected SFP-10G-LRM 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.
No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-10G-LRM, not an original Cisco-branded module.
Use Duplex LC with MMF/SMF. The specified maximum reach is 220m on OM3 / 300m on SMF, 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.
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