Level One GVT-0300 Mini GBIC

Level One GVT-0300 Mini GBIC is a high‑performance optical transceiver module designed to deliver reliable Gigabit Ethernet connectivity over multimode fiber links up to 550 meters. This SFP (Mini‑GBIC) plug‑in unit supports the IEEE 802.3z standard and operates at an optical wavelength of 850 nm, making it ideal for short‑reach data center, campus, and enterprise applications.

Key Technical Specifications

• Data Rate: 1 Gbps (1000Base‑SX) with a maximum achievable throughput of 1250 Mbps.
• Maximum Transmission Distance: 550 meters over multimode fiber.
Optical Wavelength: 850 nm, compatible with standard LC multimode connectors.
• Connector Type: LC (single‑mode and multimode).
• Power Output: Tx power ranges from –9.5 dBm to –4 dBm.
• Input Voltage: 3.5 V (max 6 V).
• Current Consumption: Up to 0.3 A.
• Operating Temperature: 0 °C to 70 °C.
• Relative Humidity: 5 %–90 % RH.
• Form Factor: Plug‑in SFP module, dimensions: 56.6 mm depth, 13.4 mm width, 3 cm overall width.
• Certification: Class 1 laser (EN 60825‑1), IEEE 802.3z compliant.

Design and Build Quality

The Level One GVT-0300 features a robust plug‑in design that allows for quick insertion into compatible SFP slots such as the LevelOne GSW‑2453 or GVT‑4000 switches. Its compact dimensions (155 mm width, 50 mm depth packaging) ensure minimal space consumption in dense rack environments. The module is manufactured in Taiwan and adheres to strict quality control standards, guaranteeing consistent performance across deployments.

Compatibility

This transceiver is fully compatible with a range of LevelOne networking equipment:

• Switches: GSW‑2453, GVT‑4000 series.
• Other SFP Slots: Any IEEE 802.3z compliant 1000Base‑SX port using LC multimode connectors.

Performance Highlights

The GVT-0300 delivers stable data transmission with a low error rate, thanks to its precise laser control and efficient thermal management. Its optical power budget of 8.5 dB ensures reliable link establishment even in environments with moderate fiber attenuation.

Typical Use Cases

• Data Center Interconnect: Short‑reach connections between racks or within a single rack.
• Campus LAN: Linking access points, switches, and servers across campus buildings.
• Enterprise Backbone: Connecting core and distribution layers in medium‑sized networks.

Installation Guidelines

1. Verify that the host device supports IEEE 802.3z 1000Base‑SX.
2. Insert the GVT-0300 into an available SFP slot, ensuring a firm click.
3. Connect an LC multimode fiber cable to the module’s optical port.
4. Power on the host device; the module will automatically detect and configure itself.

Environmental Considerations

The module operates within a wide temperature range (0 °C–70 °C) and tolerates high humidity levels (5 %–90 % RH), making it suitable for both controlled data center environments and more variable industrial settings. Its Class 1 laser classification ensures safety compliance for all users.

Summary

The Level One GVT-0300 Mini GBIC is a reliable, high‑quality optical transceiver that provides 1 Gbps Ethernet connectivity over multimode fiber up to 550 meters. Its compact design, robust build, and strict adherence to IEEE standards make it an excellent choice for any network requiring dependable short‑reach optical links.