HPE J8438A Compatible XFP X2 10GBASE-ER Transceiver Module
The J8438A compatible module serves equipment requiring a XFP X2 interface with 1550nm optics and a 40km rating. Connection is through SC duplex. Product data, application guidance and factory verification are presented together to support field technicians install, maintain and identify the exact compatible module.
OEM Part Number: J8438AHT Part Number: J8438A
Product Highlights
- Compatible alternative to HPE J8438A
- XFP connectivity at 10Gbps
- Optical wavelength: 1550nm
- Specified reach: 40km
- SC duplex / SMF interface
- Operating temperature: 0 to 70°C (32 to 158°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| HPE Compatible | J8438A |
|---|---|
| Manufacturer | HT |
| HT Part Number | J8438A |
| Form Factor | X2 |
| Max. Data Rate | 10Gbps |
| Wavelength | 1550nm |
| Max. Transmission Distance | 40km |
| Connector | SC duplex |
| Transmitter Type | EML 1550nm |
| Media | SMF |
| DOM Support | Yes |
| TX Power | -4.7~4dBm |
| Receiver Sensitivity | < -15.8dBm |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
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 XFP interface configuration must match the remote equipment; sharing a X2 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 -4.7~4dBm; receiver sensitivity is < -15.8dBm. 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
Each J8438A 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.
HPE Compatibility and Factory Testing
Factory verification starts with the expected J8438A 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.
Frequently Asked Questions
Is this an original HPE transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies J8438A, not an original HPE-branded module.
Which fiber and connector are required?
Use SC 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
When ordering, specify J8438A, J8438A, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. 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.
