Electronics / Networking
Airlive SFP-SX-1.25G-500M SFP Fiber Transceiver User Manual
Quick guide for the Airlive SFP-SX-1.25G-500M fiber transceiver. Learn about installation, technical specifications, operating conditions, and network application examples.
Table of contents
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Click an image to enlargeQuick Guide
The Airlive SFP-SX-1.25G-500M is a hot-pluggable SFP fiber transceiver designed for Gigabit Ethernet applications. It supports data rates up to 1.25Gbps over multi-mode dual fiber at distances up to 500 meters. The module features Digital Diagnostic Monitoring (DDM) to assist in identifying connection faults.
Product Overview
This module is a low-power, high-performance transceiver intended for serial optical data communication. It utilizes an 850nm VCSEL laser and a PIN photo detector. It is designed to provide an IEEE802.3z compliant link and is Class I Laser safety compliant.
Features
- 1.25Gbps Fiber Mini GBIC SFP Transceiver
- Multi-mode SFP fiber support
- Duplex LC connector interface
- Wavelength: 850nm VCSEL Laser
- Distance: Up to 500M
- Low power consumption: Max 1.0W
- Hot-pluggable capability
- Excellent ESD protection
- DDM (Digital Diagnostic Monitoring) support
Applications
The transceiver is suitable for various high-speed network environments, including:
- Fiber Channel Infrastructure
- STM-16 Optical Interface
- ATM Switches and Routers
- SDH/SONET Switch Infrastructure
- High-speed storage area networks and computer cluster cross-connects
Technical Specifications
Transmitter Characteristics
- Centre Wavelength: 830nm - 860nm (Typical 850nm)
- Average Output Power: -9 to -3 dBm
- Extinction Ratio: 8 dB
- Rise/Fall Time: 150 ps
- Total Jitter: 0.43 UI
Receiver Characteristics
- Centre Wavelength: 830nm - 860nm
- Receiver Sensitivity: -19 dBm
- Receiver Overload: -3 dBm
- Return Loss: 12 dB
- LOS Assert: -36 dBm
- LOS De-Assert: -20 dBm
Operating Environment
- Operating Temperature: 0°C to +70°C
- Storage Temperature: -40°C to +85°C
- Working Humidity: 5% to 95%, non-condensing
- Power Supply Voltage: 3.15V to 3.45V (Typical 3.3V)
Manufacturer information
AirLive Technology
Practical help
Common problems
Network connection faults
Use the DDM (Digital Diagnostic Monitoring) function supported by the SFP port to gather information about the fiber connection and identify bad connections.
Signal loss or distance issues
Ensure the total cable length does not exceed 500 meters, as this is the maximum rated distance for this module.
Before use
- Verify that the network switch or device port supports SFP modules.
- Ensure the fiber cable used is a multi-mode dual fiber type.
- Confirm the operating environment temperature is within the 0°C to +70°C range.
- Check that the device is powered on; the module is hot-pluggable.
Specs in practice
- Hot-pluggable
- The module can be inserted or removed from the switch while the device is running.
Images and diagrams
- The network diagram illustrates the SFP module inserted into a network switch, connecting to another switch via fiber to extend the network across different floors or areas.
Model compatibility
- Compliant with IEEE 802.3Z standard.
- Compliant with Digital Diagnostic SFF-8472.
- Compliant with IEC-60825 laser safety standards.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.