General
Wavelength	1310 nm
Transmission range	40 km
Power consumption	1 W
Laser class	1

The Moxa SFP-1GLHXLC is a 1-Port Gigabit Ethernet SFP module, specifically developed for expanding fiber optic connections in industrial networks. It serves as an optical transceiver for Moxa Ethernet switches and enables data transmission over single-mode fiber optic cables with a range of up to 40 kilometers. The module is designed for use in demanding environments, particularly in industrial automation, where high reliability and operational safety are required. It is based on Moxa's SFP-1G series and is designed for use in networks complying with the 1000Base-LHX standard, with transmission occurring at a wavelength of 1310 nm.

Applications
This module is suitable for industrial applications requiring stable, long-range fiber optic connections. Typical use cases include networking of production facilities, power supply networks, traffic control systems, or remote monitoring systems, where connections over long distances must be secure and uninterrupted. The high operating temperature tolerance of -40 to +85 °C (T models) also makes it suitable for outdoor and harsh environments, such as in material handling or rail transport.

Features and Equipment in Detail
The SFP-1GLHXLC features an LC duplex interface, used for connecting to standard fiber optic cables. It is designed as a hot-pluggable module, meaning it can be inserted or removed from a compatible switch without interrupting network operation. Digital diagnostic monitoring (DDM) enables real-time monitoring of parameters such as transmit power, receive level, temperature, and voltage, simplifying network administration. TTL signal detection and LVPECL differential inputs and outputs support integration into various network environments.

Technology Explained Simply
The module operates according to the Gigabit Ethernet standard (1000Base-LHX) and uses single-mode fiber optic cable, optimized for long transmission distances. The wavelength of 1310 nm is commonly used in single-mode systems and offers a good balance between range and signal quality. The maximum range of 40 km is achieved under optimal conditions, with the actual distance depending on fiber quality, connector interfaces, and signal strength. The TX power ranges from +5 to -9.5 dBm, while the receive range extends up to -33 dBm, enabling a link budget of up to 31 dB. The dispersion penalty is 1 to 5 dB, accounting for signal distortion over the distance.

Compatibility and Accessories
The module is specifically developed for Moxa Ethernet switches and requires corresponding SFP slot support. It is part of the SFP-1G series and can be combined with other modules in this series to cover various fiber optic applications, including multi-mode, single-mode, and WDM systems. For WDM applications, two modules (e.g., SFP-40A/B) are required in pairs to enable wavelength division multiplexing.

Installation and Mounting
Installation is performed by simply inserting the module into the SFP slot of the switch. Due to the hot-pluggable feature, no network downtime is required. Connection to the fiber optic cable is made via the LC duplex connector. Correct alignment and clean optics of the fiber connectors are critical for a stable connection. Mounting does not require special tools, although careful handling of optical components is recommended to avoid damage.

Operational Advantages
The module offers high reliability due to its extended operating temperature range and robust construction. The DDM function enables proactive network monitoring, allowing potential disruptions to be detected early. The low power consumption of up to 1 W reduces thermal load on the switch. Certification as a Class 1 laser product according to EN 60825-1 ensures safety during handling. The 5-year warranty underscores the product's quality and durability.

Certifications and Environmental Conditions
The module complies with safety standards UL 62368-1, IEC 62368-1, and EN 60825-1. It is also certified for EMI/EMC (EN 55032/35, FCC 15B, ICES-003) and EMS (IEC 61000-4-x series). Maritime certification by DNV makes it suitable for use on ships. The operating temperature for T models is -40 to +85 °C, and the storage temperature is also -40 to +85 °C. Humidity ranges from 5 to 95 %, non-condensing.

Laser Class and Safety
As a Class 1 laser product according to EN 60825-1, the module is safe for general use. The laser radiation is not harmful to the human eye, even when viewed directly. Certification ensures that the device poses no danger under normal operating conditions.

Scope of Delivery
The product is delivered with one SFP-1G module and a warranty card.