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

Single-Fiber Ethernet Connectivity Over 20km

The M7275S-2SFAA provides a reliable way to extend 10/100Mbps Ethernet beyond the distance limitations of copper cabling. The converter connects a standard RJ45 Ethernet network to a single-mode fiber link and supports transmission distances up to 20 kilometers.

Using single-fiber WDM technology, the M7275S-2SFAA transmits and receives Ethernet data over one single-mode fiber strand rather than requiring separate fibers for each direction.

The M7275S-2SFAA uses 1310nm for transmission and 1550nm for reception and is designed to operate with the complementary M7275S-2SFBA, which uses the opposite wavelength configuration.

Reduce Fiber Requirements With WDM Technology

Single-fiber technology provides an efficient solution when fiber availability is limited.

The M7275S-2SFAA can help:

• Extend existing Ethernet networks without installing additional fiber
• Make use of available single-strand fiber infrastructure
• Connect remote buildings and facilities
• Reduce fiber requirements for network connections
• Extend Ethernet connectivity across long distances

The M7275S-2SFAA and M7275S-2SFBA are used together as a matched pair for bidirectional communication over one fiber strand.

10/100Mbps Ethernet-to-Fiber Conversion

The M7275S-2SFAA features a shielded RJ45 copper port supporting 10Mbps and 100Mbps Ethernet. The copper interface provides auto-negotiation for speed and duplex and can also be configured for forced operating modes when manual configuration is required.

Auto MDI/MDI-X detection simplifies installation by accommodating straight-through and crossover Ethernet connections.

The fiber interface operates at 100Mbps full-duplex and includes far-end fault detection to help identify problems with the remote fiber connection.

Reliable Network Monitoring and Fault Detection

The M7275S-2SFAA incorporates features designed to simplify installation, monitoring, and troubleshooting.

Link Fault Pass-Through helps communicate link failures between the copper and fiber sides of the connection, while Far End Fault Detection helps identify problems at the remote end of the fiber link.

LED indicators provide visibility into:

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

DIP switches provide manual configuration options for copper operating mode, duplex, speed, link fault pass-through, and auto status reporting.

Watchdog Timer and Data Buffering

The M7275S-2SFAA includes a 128Kb RAM data buffer and built-in watchdog timer to support reliable operation.

The converter supports packet sizes up to 1600 bytes in store-and-forward mode and has no packet-size limit in smart-forward mode for 100-to-100Mbps traffic.

Flexible Installation Options

The M7275S-2SFAA can be installed as a standalone media converter or installed in the MCC-14R 14-slot media converter chassis. Optional DIN rail mounting provides additional flexibility for network cabinets and equipment installations.

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

20km Single-Mode Fiber Transmission

The M7275S-2SFAA is configured specifically for 20km single-mode fiber transmission using an SC connector.

Typical Applications

The M7275S-2SFAA is well suited for applications requiring reliable 10/100Mbps Ethernet connectivity over long-distance single-mode fiber.

• Building-to-building Ethernet connectivity
• Campus network extensions
• Remote network connections
• Security and surveillance networks
• Traffic monitoring systems
• Government and municipal networks
• Industrial Ethernet connections
• Telecommunications infrastructure
• Remote office connectivity
• Networks with limited fiber availability

Why Choose the M7275S-2SFAA?

The M7275S-2SFAA provides an efficient solution when you need to extend 10/100Mbps Ethernet over long-distance single-mode fiber but have only one fiber strand available.

Its 20km transmission capability, SC connector, single-fiber WDM operation, automatic Ethernet configuration, link fault detection, watchdog timer, and flexible installation options make it a practical choice for extending existing Ethernet infrastructure.

For a complete single-fiber connection, the M7275S-2SFAA is paired with the complementary M7275S-2SFBA, which uses the opposite transmit and receive wavelengths.

VERSITRON — Safeguarding Communications Since 1958

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

Our experience in fiber optic communications is reflected in products designed to provide dependable connectivity across challenging network environments. The M7275S-2SFAA Single-Fiber Media Converter continues that tradition by providing a straightforward way to extend 10/100Mbps Ethernet over up to 20km of single-mode fiber using a single fiber strand.

For help selecting the correct single-fiber converter pair, fiber configuration, or transmission distance, contact VERSITRON at 1-800-537-2296.