GB80SFB SFP Module | 1000Base, Tx- 1550nm, Rx- 1310nm, LC, SM, 80km

1000Base SFP Module for 80km Single-Fiber Networks

The VERSITRON GB80SFB is a 1000Base SFP module designed to provide Gigabit Ethernet connectivity over singlemode fiber distances up to 80 kilometers. Its bidirectional wavelength configuration uses 1550nm for transmission and 1310nm for reception, allowing both transmit and receive signals to travel over a single fiber strand.

This makes the GB80SFB a practical choice when fiber availability is limited or when a network needs to maximize the use of existing singlemode fiber infrastructure.

80km Gigabit Fiber Connectivity

With support for 1000Mbps transmission and an 80km fiber distance, the GB80SFB is designed for long-distance network connections that require Gigabit bandwidth.

The module operates over singlemode fiber using an LC connector and is suitable for extending Ethernet connectivity between network locations that are separated by significant distances.

The VERSITRON SFP datasheet lists the GB80SFB at 1000Mbps, with 1550nm transmit and 1310nm receive wavelengths, 80km singlemode fiber distance, LC connectivity, and an operating temperature range of 0°C to 70°C.

GB80SFA and GB80SFB: Single-Fiber SFP Pair

The GB80SFB is designed to operate with the complementary GB80SFA SFP module.

The two modules use different transmit and receive wavelengths:

The VERSITRON datasheet identifies the GB80SFA and GB80SFB as complementary 1000Mbps singlemode SFP modules for 80km operation.

When deploying a single-fiber link, one end uses the GB80SFA while the opposite end uses the GB80SFB. This wavelength pairing allows bidirectional Gigabit Ethernet communication over one fiber strand.

GB80SFB Technical Specifications

These specifications are taken directly from the VERSITRON Fiber Optic SFP Modules datasheet.

Long-Distance Applications

The GB80SFB is designed for applications where Gigabit Ethernet connectivity must extend well beyond the normal reach of copper Ethernet cabling.

Typical Applications

• Telecommunications Networks – Extend Gigabit Ethernet connectivity across long-distance fiber routes.
• Network Backbones – Connect remote network infrastructure over extended singlemode fiber links.
• Campus Networks – Connect buildings and facilities separated by long distances.
• Enterprise Networks – Extend high-speed connectivity between remote network locations.
• Government Networks – Provide long-distance fiber connectivity between facilities.
• Industrial Networks – Connect remote network equipment where fiber provides long-distance and EMI-resistant communication.
• Infrastructure and Utility Networks – Support Gigabit Ethernet connections across geographically separated locations.

Industry-Standard SFP Design

The GB80SFB uses an industry-standard Small Form Pluggable (SFP) form factor with an LC fiber connector. VERSITRON's SFP modules feature hot-pluggable operation, a single 3.3V power supply, TTL signal detection, and differential LVPECL inputs and outputs.

The module also uses a Class 1 laser compliant with EN 60825-1.

Choose the Right VERSITRON Gigabit SFP

VERSITRON offers a broad selection of 1000Mbps SFP modules for different fiber types and transmission distances, including multimode, singlemode, and single-fiber configurations.

For long-distance single-fiber applications, the GB80SFA and GB80SFB provide complementary wavelength configurations for an 80km Gigabit Ethernet link.

Other 1000Mbps options include standard singlemode modules for 10km, 20km, 40km, 70km, and 100km applications, as well as additional single-fiber options.

Why Choose VERSITRON?

VERSITRON provides fiber optic communication products for demanding commercial, industrial, government, military, transportation, telecommunications, and infrastructure applications.

Our SFP modules are available in multiple speeds, wavelengths, fiber types, connector configurations, and transmission distances, allowing network designers to select the appropriate solution for their specific fiber infrastructure.

VERSITRON also offers CWDM, DWDM, and DDM SFP modules for specialized networking requirements.

VERSITRON — Safeguarding Communications Since 1958

Since 1958, VERSITRON has provided fiber optic communication and networking solutions for applications where reliable connectivity matters. Our experience spans fiber optic media converters, network switches, SFP modules, and other communication equipment designed to support demanding network environments.

Need help selecting a 1000Base SFP module? Contact VERSITRON for assistance selecting the appropriate wavelength, fiber type, transmission distance, and complementary SFP for your application.