GETFORT GF-SM-WDM31-S1 SFP-module 1.25Gbps 3km SC/UPC SM BiDi WDM TX1310/RX1550

The GETFORT GF-SM-WDM31-S1 is a high-performance Bi-Directional (BiDi) WDM SFP transceiver module designed for Gigabit Ethernet and Fiber Channel applications. It operates at a data rate of 1.25 Gbps over a single-mode fiber, supporting distances up to 3 km. With a compact SFP form factor, it is hot-pluggable and compliant with IEEE 802.3z and SFP MSA standards, ensuring seamless integration into existing network infrastructure.

Advantages

This module utilizes WDM technology to transmit and receive on different wavelengths (1310 nm TX / 1550 nm RX) over a single fiber, effectively doubling fiber capacity without additional cabling. It supports Digital Diagnostics Monitoring (DDM/DOM) for real-time performance monitoring, enhancing network reliability and troubleshooting. The commercial-grade operating temperature range (0°C to 70°C) makes it suitable for standard indoor environments.

Suitable for

• Gigabit Ethernet networks (1000BASE-BX)
• 1G Fiber Channel links
• Metro and access network connections
• Point-to-point fiber optic links

Key specifications

• Module Type: SFP (Small Form-Factor Pluggable)
• Transceiver Type: Bi-Directional (BiDi) WDM
• Data Rate: 1.25 Gbps
• Max Transmission Distance: 3 km
• Fiber Type: Single-Mode (SM)
• Connector Type: SC/UPC
• TX Wavelength: 1310 nm
• RX Wavelength: 1550 nm
• DDM/DOM Support: Yes
• Hot-Pluggable: Yes
• Compliance: IEEE 802.3z, SFP MSA
• Power Supply: 3.3 V
• Operating Temperature: 0°C to 70°C
• Laser Type (TX): DFB Laser
• Receiver Type (RX): PIN Photodiode

Recommendations

For optimal performance, pair this module with a compatible SFP port on switches, routers, or media converters. Ensure the fiber patch cable is single-mode with SC/UPC connectors. The module is designed for use with a single fiber strand; verify that the remote transceiver matches the opposite wavelength pair (TX1550/RX1310).