NOKIA 3FE55743AA Compatible 10G SFP+ BX40-U Transceiver Module
The 3FE55743AA compatible module serves equipment requiring a 10G SFP+ interface with 1270nm-TX/1330nm-RX optics and a 40km rating. Connection is through Simplex LC. 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: 3FE55743AAHT Part Number: SFP-10G23-BX40-I
Product Highlights
- Compatible alternative to NOKIA 3FE55743AA
- 10G connectivity at 10.3Gbps
- Optical wavelength: 1270nm-TX/1330nm-RX
- Specified reach: 40km
- Simplex LC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: -40 to 85°C (-40 to 185°F)
Specifications
| NOKIA Compatible | 3FE55743AA |
|---|---|
| Manufacturer | HT |
| HT Part Number | SFP-10G23-BX40-I |
| Form Factor | SFP+ |
| Max Data Rate | 10.3Gbps |
| Wavelength | 1270nm-TX/1330nm-RX |
| Max Cable Distance | 40km |
| Connector | Simplex LC |
| Media | SMF |
| Transmitter Type | DFB |
| Receiver Type | PIN |
| TX Power | 1~5dBm |
| Receiver Sensitivity | <-15dBm |
| Power Budget | 16dB |
| Receiver Overload | 0.5dBm |
| Power Consumption | ≤1W |
| Extinction Ratio | >3.5dB |
| DDM/DOM | Supported |
| Industrial Temperature Range | -40 to 85°C (-40 to 185°F) |
| Protocols | IEEE 802.3ae, SFP+ MSA, SFF-8472, SFF-8431, SFF-8432, CPRI, OBSAI |
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 10.3Gbps, wavelength 1270nm-TX/1330nm-RX, rated reach 40km.
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.
BiDi operation saves a fiber strand but makes wavelength orientation critical. Record the part installed at each end and check its paired receive wavelength. The 40km rating still depends on total channel loss, including connectors and splices.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is 1~5dBm; receiver sensitivity is <-15dBm; the stated optical power budget is 16dB. 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.
Quality Assurance and Packaging
Each 3FE55743AA 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.
NOKIA Compatibility and Factory Testing
Factory verification starts with the expected 3FE55743AA 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 NOKIA transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies 3FE55743AA, not an original NOKIA-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.
Ordering Information
When ordering, specify 3FE55743AA, SFP-10G23-BX40-I, 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.
