Brocade SFP1G-SX-31 Compatible 1G SFP Transceiver Module
The SFP1G-SX-31 compatible module serves equipment requiring a 1G SFP interface with 1310nm optics and a 2km rating. Connection is through Duplex LC. Product data, application guidance and factory verification are presented together to support project teams keep OEM references, delivery records and port schedules aligned.
OEM Part Number: SFP1G-SX-31HT Part Number: SFP1G-SX-31
Product Highlights
- Compatible alternative to Brocade SFP1G-SX-31
- 1G connectivity at 1.25Gbps
- Optical wavelength: 1310nm
- Specified reach: 2km
- Duplex LC / SMF/MMF interface
- Operating temperature: 0 to 70°C (32 to 158°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| HT Part Number | SFP1G-SX-31 |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max. Data Rate | 1.25Gbps |
| Connector | Duplex LC |
| Max. Cable Distance | 2km |
| Media | SMF/MMF |
| Wavelength | 1310nm |
| Modulation | NRZ |
| Power Consumption | < 1W |
| Transmitter Type | FP |
| Receiver Type | PIN-TIA |
| TX Power | -9~-3dBm |
| Receiver Sensitivity | < -21dBm |
| BER | 1E-12 |
| DOM Support | Yes |
| Protocols | SFF-8472, MSA, IEEE 802.3 |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| MTTF | 80,226 Hours[Condition |
| 30°C Reference Operating Condition, Based on Accelerated Life Testing] | Warranty |
Project Documentation and Traceability
Large deployments are easier to audit when the order code, optical standard and endpoint record agree. Keep the OEM reference in the compatibility document and the HT part number on the packing list. Labels and carton groups can be arranged by rack or port plan so installers need not identify modules by appearance. For this model, the principal parameters are data rate 1.25Gbps, wavelength 1310nm, rated reach 2km.
Brocade Compatibility and Factory Testing
Factory verification starts with the expected SFP1G-SX-31 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.
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 Duplex LC 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 1G interface configuration must match the remote equipment; sharing a SFP housing alone does not make two transceiver types interoperable.
For this multimode module, confirm fiber grade, modal bandwidth and total loss before commissioning. The 2km figure applies only under suitable cabling conditions. Inspect every Duplex LC mating point and match the remote optical standard.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -9~-3dBm; receiver sensitivity is < -21dBm. 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.
Frequently Asked Questions
Is this an original Brocade transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies SFP1G-SX-31, not an original Brocade-branded module.
Which fiber and connector are required?
Use Duplex LC with SMF/MMF. The specified maximum reach is 2km, 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 SFP1G-SX-31 as the compatibility cross-reference and SFP1G-SX-31 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.
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.
