10/100TX-FX Media Converter | 1-RJ45 Ethernet Port, 1-SC Fiber Port, SM

Extend 10/100 Ethernet Networks Over Single-Mode Fiber

The M7275S-2B provides a straightforward way to extend 10/100Mbps Ethernet connections over single-mode fiber optic cable. The converter accepts an Ethernet connection through its RJ45 copper interface and converts the electrical signal to 100Base-FX optical transmission.

The copper interface supports Cat5 UTP cable distances up to 100 meters, while the single-mode fiber interface extends connectivity up to 20 kilometers. This makes the M7275S-2B particularly useful when Ethernet devices, network segments, or facilities are separated by distances beyond the practical reach of copper cabling.

SC Single-Mode Fiber Connectivity

The M7275S-2B uses an SC fiber connector and 1310nm wavelength for 100Base-FX transmission over single-mode fiber.

The datasheet specifies 9/125µm single-mode fiber and a maximum transmission distance of 20 km for this model. Its specified transmit power is -13 to -4dBm, with receiver sensitivity of -33dBm.

This configuration makes the converter well suited for longer-distance Ethernet links where single-mode fiber is already installed or is preferred for network expansion.

Automatic Ethernet Configuration

The M7275S-2B's shielded RJ45 port supports 10Mbps and 100Mbps Ethernet with full- and half-duplex operation.

Auto-negotiation automatically determines the appropriate speed and duplex configuration for the connected Ethernet device. Auto-MDI/MDI-X detection simplifies installation by automatically accommodating the connected Ethernet cable configuration.

For installations requiring specific settings, the converter also supports forced speed and duplex modes.

Link Fault Pass-Through and Far End Fault Detection

The M7275S-2B includes Link Fault Pass-Through and Far End Fault detection to help identify failures affecting the copper or fiber portions of the connection.

LED indicators provide network status information, including:

• Power status
• Copper link/activity
• Copper speed
• Copper duplex status
• Fiber link/activity
• Fiber signal detection

These indicators provide technicians with a convenient way to verify connectivity and troubleshoot network links.

Reliable 10/100 Ethernet-to-Fiber Conversion

The M7275S-2B uses store-and-forward technology and includes a 1M RAM data buffer and watchdog timer to support reliable operation.

The watchdog timer provides automatic recovery in the event of a system failure, helping maintain converter operation without requiring manual intervention.

The converter supports packet sizes up to 1600 bytes in store-and-forward mode. Smart-forward operation for 100-to-100Mbps transmission has no packet-size limitation according to the datasheet.

DIP Switch Configuration

The M7275S-2B provides DIP switches for manual configuration of selected operating parameters.

Available settings include:

• Copper operating mode
• Duplex
• Speed
• Link Fault Pass-Through
• Auto Status Report

This allows the converter to be configured for specific network requirements when automatic operation is not preferred.

Flexible Installation Options

The compact M7275S-2B can be deployed as a standalone media converter or installed in VERSITRON's optional MCC-14R 14-slot chassis.

Optional DIN rail mounting provides another installation option for network cabinets, equipment rooms, and space-constrained environments. The MCC-14R also provides centralized installation with redundant power for multiple compatible media converters.

Compact, Low-Power Design

The M7275S-2B operates from +5 to 12VDC, 1A and consumes less than 5W.

The compact enclosure measures 3.70 × 2.79 × 1.02 inches, making it suitable for installations where equipment space is limited.

The specified operating temperature range is -10°C to +55°C, with a storage temperature range of -40°C to +70°C and 5% to 90% non-condensing humidity.

Typical Applications

The M7275S-2B is well suited for Ethernet networks that require longer-distance copper-to-fiber conversion using single-mode fiber.

Typical applications include:

• Long-distance Ethernet extension
• Building-to-building connectivity
• Campus networks
• Industrial Ethernet networks
• IP surveillance and security networks
• Access control and intercom systems
• Telecommunications infrastructure
• Remote network connectivity
• Fiber-to-the-desktop applications
• Commercial and enterprise networks

Technical Specifications

Specifications are based on the M727xSB datasheet, including the model-specific optical specifications for M7275S-2B.

VERSITRON Fiber Optic Communications Since 1958

Since 1958, VERSITRON has provided fiber optic communication solutions for commercial, industrial, government, security, and telecommunications applications.

The M7275S-2B provides a dependable method for converting 10/100Base-TX copper Ethernet to 100Base-FX single-mode fiber, extending network connectivity up to 20 km while providing automatic configuration, fiber fault detection, flexible mounting options, and low-power operation.

For product selection, network integration assistance, or technical support, contact VERSITRON at 1-800-537-2296.

Product Features of 10 Base TX to 100 Base FX Fiber Optic Media Converter:

• 10/100Mbps Copper to 100Mbps Fiber
• Full wire speed conversion
• Auto-negotiation, auto MDI/MDI-X detection
• Link fault pass through function
• 128Kb RAM data buffer
• Watch-Dog timer
• Far End Fault Function
• Stand-alone or chassis installation in MCC-14R
• Optional DIN rail mounting
• USB power port
• Low power consumption
• Wide range of fiber options

10/100TX-FX Media Converter | 1-RJ45 Ethernet Port, 1-SC Fiber Port, SM (M7275S-2B) Review:

10/100TX-FX Media Converter is used across the following Industries:

Versitron is one of the leading 10/100TX-FX Media Converter manufacturing companies in the USA (based in Delaware). If your industry or installation location isn't listed above, feel free to reach out to us!

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