Extreme Networks 10121 Compatible XFP XFP 10GBASE-SR Transceiver Module
Built for hosts recognizing 10121, this HT-manufactured XFP module delivers XFP transmission at 850nm. Its rated reach is 300m over OM3 MMF, with LC duplex as the physical interface. The specifications and engineering guidance below support field technicians install, maintain and identify the exact compatible module, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: 10121HT Part Number: XFP-10GSR-85
Product Highlights
- Compatible alternative to Extreme Networks 10121
- XFP connectivity at 10Gbps
- Optical wavelength: 850nm
- Specified reach: 300m over OM3 MMF
- LC duplex / MMF interface
- Operating temperature: 0 to 70°C (32 to 158°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| Extreme Networks Compatible | 10121 |
|---|---|
| Manufacturer | HT |
| HT Part Number | XFP-10GSR-85 |
| Form Factor | XFP |
| Max. Data Rate | 10Gbps |
| Wavelength | 850nm |
| Max. Transmission Distance | 300m over OM3 MMF |
| Connector | LC duplex |
| Transmitter Type | VCSEL 850nm |
| Media | MMF |
| DOM Support | Yes |
| TX Power | -3.5~5.3dBm |
| Receiver Sensitivity | <-13dBm |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | SFP+ MSA Compliant, CPRI, eCPRI |
Field Installation and Maintenance
Inspect the connector and patch lead before installation, then support the fiber without pulling on the module housing. Release the latch properly during maintenance and keep dust protection on unused interfaces. If a module is removed for later use, retain its part-number label and record its original port. For this model, the principal parameters are data rate 10Gbps, wavelength 850nm, rated reach 300m over OM3 MMF.
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 LC duplex 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 XFP interface configuration must match the remote equipment; sharing a XFP housing alone does not make two transceiver types interoperable.
The multimode channel should use the fiber grade associated with the stated 300m over OM3 MMF reach. Keep the LC duplex end faces clean and avoid tight bends. Different multimode standards are not interchangeable merely because they share a connector.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -3.5~5.3dBm; receiver sensitivity is <-13dBm. 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.
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.
Extreme Networks Compatibility and Factory Testing
The module is checked for host recognition as 10121, 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.
Frequently Asked Questions
Is this an original Extreme Networks transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies 10121, not an original Extreme Networks-branded module.
Which fiber and connector are required?
Use LC duplex with MMF. The specified maximum reach is 300m over OM3 MMF, 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.
Ordering Information
Use 10121 as the compatibility cross-reference and XFP-10GSR-85 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.
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.
