General
Ethernet ports	1
Range	80 km
Laser class	1

The Moxa SFP-1GZXLC is a 1-Port Gigabit Ethernet SFP module for industrial use, specifically designed for connection over single-mode fibre with a range of up to 80 km. It is part of Moxa's SFP-1G series and serves as a network transceiver, used in compatible Moxa Ethernet switches to connect optical fibre cables with Ethernet networks. The module is designed for use in harsh environments and supports an extended operating temperature range of -40 to 85 °C, making it suitable for industrial applications in climatically demanding environments.

Applications

The module is used in industrial networks where high reach over fibre cables is required, for example in power supply, rail transport, manufacturing automation, or for transmission over long distances within factories or between sites. The 80 km range enables connection between sites that are far apart, without requiring additional amplifiers or intermediate stations. Compatibility with Moxa switches ensures seamless integration into existing infrastructures.

Features and Equipment in Detail

The module features a Digital Diagnostic Monitor (DDM) function, which allows real-time monitoring of operating parameters such as temperature, voltage, optical transmit power (TX), and receive power (RX). This diagnostic function is particularly useful for remote maintenance and fault diagnosis in distributed infrastructure. The signal outputs are implemented as differential LVPECL signals, and TTL signal detection for signal loss (LOS) is provided to monitor the module's operating status. The module is hot-pluggable, meaning it can be inserted into or removed from the switch without interrupting network operation.

Technology Explained Simply

The SFP-1GZXLC operates according to the Gigabit Ethernet standard (1000BaseZX) and uses single-mode fibre (SMF) with a wavelength of 1550 nm. This wavelength is particularly suitable for long distances, as it exhibits lower attenuation losses compared to shorter wavelengths. The TX power is in the range of -1 to -9 dBm, and the RX reception range is -1 to -19 dBm, enabling robust signal transmission even with weak signals. Laser class 1 according to EN 60825-1 ensures safe operation without risk to the human eye. IEEE 802.3z compliance ensures interoperability with other Gigabit Ethernet devices.

Compatibility and Accessories

The module is specifically designed for use in Moxa Ethernet switches and does not require additional adapters or converters. It is not compatible with other manufacturers or modules unless explicitly marked as compatible. Connection is made via a duplex LC connector, which is the standard for SFP modules.

Installation and Mounting

Installation is performed by simply inserting the module into a free SFP slot of a compatible Moxa switch. Due to the hot-pluggable feature, no network downtime is required. Cabling is done using a single-mode fibre cable with LC connectors. Correct alignment of the fibre and cleaning of the connectors are critical for a stable connection. No special tools are required for mounting.

Operational Advantages

Operation of the module is characterised by high reliability and ease of maintenance. The DDM function enables proactive monitoring and reduces the need for physical inspections. The high range of 80 km reduces the number of required amplifiers and switches in the network architecture. The operating temperature range of -40 to 85 °C makes the module suitable for use in extreme environments, such as outdoor installations, near production machinery, or in climatically unstable regions. The 5-year warranty underscores the high quality and longevity of the product.