
1000BASE-SX SFP 550m Optical Transceiver
1000BASE-SX SFP optical transceiver for 0.1 to 1.25Gbps links over duplex multimode fiber, with an 850nm interface, up to 550m reach and DDM / DOM support.
Specifications
- Warranty
- 3-Years
- Customization
- Free OEM labeling
- Delivery Time
- 48 hours dispatch
Confirm the multimode link conditions first.
The Axonode 1000BASE-SX SFP 550m transceiver supports data rates from 0.1 to 1.25Gbps over duplex multimode fiber. Confirm the fiber grade, duplex LC patching, host port requirements and total link length before deployment.
1G SFP Port
Confirm that the host device supports a standard 1G SFP port and the required compatibility coding.
Duplex LC / MMF
Use duplex LC cabling with compatible 50/125um multimode fiber.
Reach Up to 550m
Verify the installed multimode fiber, connector losses and total route length before deployment.
Optical specifications
| Product Type | 1000BASE-SX SFP Optical Transceiver |
| Axonode Part Number | A-1G-SFP-VCSEL-PIN |
| Data Rate | 0.1 to 1.25Gbps |
| Form Factor | SFP |
| Maximum Reach | Up to 550m |
| Fiber / Connector | Multimode fiber / Duplex LC |
| Wavelength | 850nm; 830-870nm |
| Transmitter / Receiver | VCSEL / PIN |
| Average Output Power | -9 to 0dBm |
| Receiver Sensitivity | -18dBm |
| Receiver Overload | -1dBm |
| Extinction Ratio | 9.0dB minimum |
| Power Supply | 3.135-3.465V; 300mA maximum |
| DDM / DOM | Supported |
| Operating Temperature | 0 to +70 degrees C; -20 to +80 degrees C; -40 to +85 degrees C options |
| Compliance | SFP MSA, SFF-8472 and RoHS |
1G multimode deployment
This transceiver is intended for short 1G links over duplex multimode fiber, including enterprise access, campus edge and equipment interconnects. Confirm the installed fiber grade and route length before ordering.
Compatibility prepared for your network
Compatibility coding must be confirmed for the actual switch, router or network interface. Share the equipment brand, exact model, software or firmware environment, port mode and DDM requirements before ordering.
Quality and compliance
The module follows the SFP mechanical interface and SFF-8472 digital diagnostic requirements. Compliance with these specifications does not replace host-platform compatibility verification.
Comprehensive testing
Testing can include wavelength, transmit power, receiver response, DDM readings, host recognition and link establishment according to product and project requirements.
Frequently Asked Questions
What fiber is required for the 550m reach?
Use compatible 50/125um multimode fiber with duplex LC connectors. Confirm the fiber grade and installed route length before deployment.
Does this module use simplex or duplex LC?
It uses a duplex LC interface with separate transmit and receive fibers.
Can it be used on single-mode fiber?
No. This 850nm module is specified for multimode fiber. Select a suitable single-mode SFP for an SMF link.
Does it support DDM or DOM?
Yes. The verified product knowledge supports digital monitoring of temperature, supply voltage, bias current and optical power.
Is compatibility guaranteed by the SFP form factor?
No. Mechanical fit does not prove host acceptance. Coding, port mode, software and firmware requirements must be checked for the target device.
What should be checked if the link does not come up?
Check port speed, compatibility coding, LC polarity, connector cleanliness, fiber grade, route length and DDM readings at both ends.
Which temperature options are available?
The verified options are 0 to +70 degrees C, -20 to +80 degrees C and -40 to +85 degrees C. Confirm the required grade when ordering.
Downloads
The 1000BASE-SX SFP 550m technical datasheet is available on request. Share the host device model and link requirements so the correct technical information can be supplied.
Request the 1G SX 550m datasheet
Confirm your 1G multimode link
Share your device model, fiber grade, link length and quantity. Axonode will help review the suitable coding profile and optical configuration.

