GB70SM SFP Module | 1000Base, 1550nm, LC, SM, 70km

1000Base SFP Module for 70km Singlemode Fiber

The VERSITRON GB70SM is a long-distance 1000Base SFP module designed to provide reliable Gigabit Ethernet transmission over singlemode fiber. With a maximum rated distance of 70 kilometers, it provides significantly greater reach than standard short-distance Gigabit SFP modules.

Operating at 1550nm, the GB70SM uses an LC fiber connector and is designed for integration with compatible SFP-enabled networking equipment. Its extended fiber reach makes it well suited for backbone connections, telecommunications infrastructure, campus networks, and other applications where network locations are separated by substantial distances.

According to the VERSITRON Fiber Optic SFP Modules datasheet, the GB70SM operates at 1000Mbps over singlemode fiber for distances up to 70km, with a transmit power range of 0 to +5 dBm, receive sensitivity below -24 dBm, and an operating temperature range of 0°C to 70°C.

Extend Gigabit Ethernet Up to 70km

The GB70SM allows network designers to extend Gigabit Ethernet connectivity well beyond the distance limitations of copper Ethernet by using singlemode fiber.

A 70km Gigabit SFP can be useful for connecting:

• Network buildings
• Campus facilities
• Remote communications sites
• Telecommunications locations
• Enterprise network facilities
• Fiber network aggregation points
• Long-distance Ethernet backbone connections

Using a compatible SFP module also allows network administrators to select the appropriate fiber interface based on the required transmission distance, fiber type, and wavelength.

1550nm Singlemode Fiber Technology

The GB70SM operates at 1550nm over singlemode fiber, making it suitable for extended-reach Gigabit Ethernet applications.

Its 70km transmission capability places it between VERSITRON's shorter-distance Gigabit SFP models and the GB100SM 100km model. This provides network designers with another option when a 40km or 100km module does not match the requirements of the fiber link.

The VERSITRON SFP product family includes standard singlemode Gigabit modules for 20km, 40km, 70km, and 100km, as well as specialized bidirectional modules for other distances.

GB70SM Technical Specifications

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

Industry-Standard SFP Design

The GB70SM uses an industry-standard Small Form Pluggable (SFP) form factor, providing a modular approach to adding fiber connectivity to compatible network equipment.

VERSITRON SFP modules feature:

• Industry-standard SFP design
• LC fiber connectors
• Differential LVPECL inputs and outputs
• 3.3V single power supply
• TTL signal detect indicator
• Hot-pluggable installation
• Class 1 laser compliant with EN 60825-1

This modular architecture allows network administrators to select an SFP according to the required network speed, fiber type, wavelength, connector, and transmission distance.

Typical Applications

Extend Gigabit Ethernet between network locations separated by distances of up to 70km using singlemode fiber.

Provide long-distance Gigabit fiber connectivity between telecommunications facilities and network infrastructure.

Connect buildings and remote facilities where copper Ethernet cannot provide the required distance.

Support long-distance connections between network aggregation points, facilities, and remote locations.

Add Gigabit fiber connectivity to compatible SFP-enabled switches, media converters, and other networking equipment.

Extend Ethernet connectivity to remote locations using singlemode fiber infrastructure.

How to Select the Right Gigabit SFP

Selecting the correct SFP requires matching the module to both the networking equipment and the fiber infrastructure.

Consider:

• Data rate: The GB70SM operates at 1000Mbps.
• Fiber type: The GB70SM is designed for singlemode fiber.
• Wavelength: The module operates at 1550nm.
• Transmission distance: The GB70SM is rated for distances up to 70km.
• Connector: The module uses an LC fiber connector.
• Equipment compatibility: Confirm that the connected switch, media converter, or other networking equipment supports the required SFP specification.

For applications requiring a 70km Gigabit Ethernet connection over singlemode fiber, the GB70SM provides a dedicated long-distance option within the VERSITRON Gigabit SFP product family.

Why Choose VERSITRON?

VERSITRON provides fiber optic networking products designed for reliable communication in commercial, industrial, government, military, transportation, telecommunications, and infrastructure applications.

Our SFP portfolio includes 100Mbps, 1000Mbps, and 10Gbps modules, with multimode and singlemode options and transmission distances ranging from short-reach connections to long-distance fiber links. VERSITRON also offers CWDM, DWDM, and DDM modules for specialized fiber 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 includes fiber optic media converters, network switches, SFP modules, and other communication equipment designed to support dependable network infrastructure.

Need help selecting a 1000Base SFP module? Contact VERSITRON for assistance selecting the right fiber type, wavelength, transmission distance, and compatible module for your network.