General
Wavelength	1530–1570 nm
Range	80 km
Dispersion penalty	1 dB
Power consumption	1 W
DDM
PECL signals

The Moxa SFP-1FELLC-T is a 1-Port Fast Ethernet SFP module designed as a hot-pluggable transceiver for industrial networking applications. It serves as an optional extension for various Moxa Ethernet switches and enables connection via single-mode fiber with a transmission range of up to 80 km. The module is designed for demanding environments and supports an extended operating temperature range of -40 to 85 °C, making it suitable for industrial and outdoor installations. The robust construction and certification as Laser Class 1 according to EN 60825-1 ensure safe and reliable operation.

Applications

The SFP-1FELLC-T is designed for industrial networks where stable, long-distance fiber communication is required. Typical application scenarios include networking of production facilities, power supply networks, traffic control systems, or remote control systems, where connection over long distances via single-mode fiber is necessary. The high temperature resistance also makes it suitable for outdoor installations or machines in harsh operating environments. The DNV certification also enables use in marine applications.

Functions and Features in Detail

The module features an LC duplex connector, enabling connection with standard single-mode fibers. It supports digital diagnostic monitoring (DDM), allowing real-time monitoring of optical parameters such as transmit power, receive sensitivity, and temperature. This simplifies network diagnostics and maintenance. The differential PECL signals ensure stable signal transmission. The maximum power consumption is 1 W, highlighting the module’s energy efficiency.

Technology Explained Simply

The SFP-1FELLC-T operates in the 100Base-FX standard (IEEE 802.3u) and transmits data at a speed of 100 Mbit/s over single-mode fiber. The transmitter wavelength is in the range of 1530–1570 nm, which is critical for the long reach of up to 80 km. The receiver sensitivity is -3 to -34 dBm, enabling high sensitivity to weak signals. The link budget of 29 dB provides sufficient signal reserve to compensate for losses due to fiber attenuation and connection points. The dispersion penalty of 1 dB is low, maintaining signal quality over long distances.

Compatibility and Accessories

The module is compatible with single-mode fibers of type G.652. The use of an attenuator is recommended when applying SFP-S or SFP-L models to avoid damage from excessive optical power. It is designed as a hot-pluggable module, meaning it can be inserted or removed from a compatible Moxa switch without interrupting network operation. The module series also includes variants for multi-mode fiber (SFP-M) and short single-mode distances (SFP-S), however, the SFP-1FELLC-T is specifically designed for the 1550-nm wavelength and 80-km reach.

Installation and Mounting

Installation is performed by simply inserting the module into an SFP slot of a compatible Moxa switch. The hot-plug capability allows mounting without shutting down the network infrastructure. Connection to the fiber is made via the integrated LC duplex connector. Correct alignment and clean fiber end faces are essential for a stable connection. Certifications according to IEC 61000-4-2 to -4-11 ensure immunity to electromagnetic interference.

Operational Advantages

The combination of high reach, extended temperature resistance, and DDM functions provides high operational reliability and ease of maintenance. The low power consumption of up to 1 W reduces energy usage. The DNV certification and safety certifications according to UL 62368-1 and IEC 62368-1 enable use in critical and specialized applications. The 5-year manufacturer warranty underscores the product’s reliability.

Scope of Delivery

The product is delivered with one SFP-1FE module and a warranty card.