HPE H3C JD121A Compatible 10G XFP ER Transceiver Module
Built for hosts recognizing JD121A, this HT-manufactured XFP module delivers 10G transmission at 1550nm. Its rated reach is 40km, 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: JD121AHT Part Number: XFP-10GER-55
Product Highlights
- Compatible alternative to HPE H3C JD121A
- 10G connectivity at 10Gbps
- Optical wavelength: 1550nm
- Specified reach: 40km
- LC duplex / SMF interface
- Operating temperature: 0 to 70°C (32 to 158°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| HPE H3C Compatible | JD121A |
|---|---|
| Manufacturer | HT |
| HT Part Number | XFP-10GER-55 |
| Form Factor | XFP |
| Max. Data Rate | 10Gbps |
| Wavelength | 1550nm |
| Max. Transmission Distance | 40km |
| Connector | LC duplex |
| Transmitter Type | EML 1550nm |
| Media | SMF |
| DOM Support | Yes |
| TX Power | 0~4dBm |
| Receiver Sensitivity | <-16dBm |
| 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 1550nm, rated reach 40km.
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.
Before deployment, check the host port type, supported data rate and firmware requirements. The 10G interface configuration must match the remote equipment; sharing a XFP housing alone does not make two transceiver types interoperable.
Wavelength-selective links require the exact channel plan at both ends. Confirm that filters pass 1550nm, then include their insertion loss in the 40km power budget. A nearby channel is not a substitute for the specified wavelength.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is 0~4dBm; receiver sensitivity is <-16dBm. 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.
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.
HPE H3C Compatibility and Factory Testing
Compatibility testing for JD121A 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 HPE H3C transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies JD121A, not an original HPE H3C-branded module.
Which fiber and connector are required?
Use LC duplex with SMF. The specified maximum reach is 40km, 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
Quote HT part number XFP-10GER-55 together with OEM reference JD121A and quantity. Add the host model and software release when pre-order verification is required. 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.
