10/100BASE-T SFPEricsson SFP-25G32-BX40-I Compatible 25G SFP28 BX40-D Transceiver Module
The SFP-25G32-BX40-I compatible module serves equipment requiring a 25G SFP28 interface with 1310nm-TX/1270nm-RX optics and a 40km rating. Connection is through Simplex LC. Product data, application guidance and factory verification are presented together to support high-density deployments balance optical performance, port access and thermal planning.
OEM Part Number: SFP-25G32-BX40-IHT Part Number: SFP-25G32-BX40-I
Product Highlights
- Compatible alternative to Ericsson SFP-25G32-BX40-I
- 25G connectivity at 25.78Gbps
- Optical wavelength: 1310nm-TX/1270nm-RX
- Specified reach: 40km
- Simplex LC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: -40 to 85°C (-40 to 185°F)
Specifications
| HT Part Number | SFP-25G32-BX40-I |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP28 |
| Max Data Rate | 25.78Gbps |
| Wavelength | 1310nm-TX/1270nm-RX |
| Max Cable Distance | 40km |
| Connector | Simplex LC |
| Media | SMF |
| Transmitter Type | DFB BiDi |
| Receiver Type | APD |
| TX Power | 0~6dBm |
| Receiver Sensitivity | <-18dBm |
| Power Budget | 18dB |
| Receiver Overload | -6dBm |
| Power Consumption | <1.5W |
| Extinction Ratio | 4dB |
| DDM/DOM | Supported |
| Industrial Temperature Range | -40 to 85°C (-40 to 185°F) |
| CDR | TX & RX Built-in CDR |
| FEC Function | Not Supported |
| Protocols | SFF-8472, SFF-8402, SFF-8432, SFF-8431, CEI-28G-VSR |
Applications and Optical Link Design
This BiDi interface is useful where only one fiber strand is available between two sites or racks. It must be paired with the complementary wavelength direction: one end transmits on the wavelength that the other end receives. Verify the paired part number, connector polish and fiber plant before installation, and measure link loss against the specified optical 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.
This single-fiber interface must be paired with the complementary wavelength direction. One end transmits on the wavelength the other receives. Verify connector polish and measure loss over the 40km design range before service.
Quality Assurance and Packaging
Each SFP-25G32-BX40-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 0~6dBm; receiver sensitivity is <-18dBm; the stated optical power budget is 18dB. During commissioning, record the host diagnostic readings after the link has stabilized and compare them with those limits. DOM values are useful operational indicators, but they do not replace calibrated optical measurements when a link is marginal. Investigate unexpected loss through connector inspection, cleaning and a channel measurement before replacing the module. Diagnostic monitoring is listed as Supported. 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 25.78Gbps, wavelength 1310nm-TX/1270nm-RX, rated reach 40km.
Ordering Information
Use SFP-25G32-BX40-I as the compatibility cross-reference and SFP-25G32-BX40-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.
Ericsson Compatibility and Factory Testing
Compatibility testing for SFP-25G32-BX40-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 Ericsson transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-25G32-BX40-I, not an original Ericsson-branded module.
Which fiber and connector are required?
Use Simplex LC 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.
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.
