General
Wavelength	1310 nm
Range	40 km
Air humidity	5–95 % (nicht kondensierend)
Laser class	1

The SFP-1G40ALC from Moxa is a 1-Port Gigabit Ethernet SFP transceiver module for industrial networking applications. It serves as a hot-pluggable module for optical data transmission over fiber optic cables and is specifically designed for use in demanding environments. The module is fully IEEE 802.3z-compliant and enables a data transmission rate of 1 Gbit/s. It features a digital diagnostics function (DDM) that monitors operation and provides status information such as transmit power, receive sensitivity, and temperature. Support for LVPECL differential signals as well as TTL signal detection ensures reliable communication with various network devices. As a Class 1 laser product, it is certified for safe use in industrial and public environments.

Applications

The module is suitable for use in industrial networks, such as in automation technology, power supply, or transportation. It can be integrated into switches, routers, or other network devices with an SFP slot to establish a fiber optic connection. The T-model variant, to which the SFP-1G40ALC belongs, is designed for extreme operating temperatures and operates reliably between -40 and 85 °C. This makes it particularly suitable for outdoor installations, mobile systems, or production environments with high thermal loads.

Functions and Features in Detail

The SFP-1G40ALC is a single-mode transceiver with a wavelength of 1310 nm. It enables a maximum reach of 40 km over single-mode fiber optic cables. The TX power ranges from -9.5 to +5 dBm, and the RX sensitivity is up to -33 dBm. The link budget ranges from 8.5 to 31 dB, with a dispersion penalty of 1 to 5 dB taken into account. For models LHX, ZX, EZX, EZX-120, and all WDM types, an optical attenuator is recommended to ensure signal quality. The module features an LC duplex connector, which is standard for most applications.

Technology Explained Simply

The module operates as an optical transceiver, converting electrical signals into light signals and vice versa. The use of single-mode fiber enables high bandwidth and long transmission distances with minimal signal attenuation. The 1310 nm wavelength is widely used in optical communication and offers a good balance between reach and signal quality. The digital diagnostics (DDM) enables remote monitoring of the module, allowing disturbances to be detected and resolved early. The hot-pluggable function allows the module to be inserted and removed without interrupting network operation.

Compatibility and Accessories

The SFP-1G40ALC is compatible with all devices that support an SFP slot for Gigabit Ethernet. It can be used in combination with other models from the SFP-1G series, such as WDM models SFP-10A/B, SFP-20A/B, or SFP-40A/B, to implement Wavelength Division Multiplexing (WDM). This allows multiple data channels to be used over a single fiber optic cable, increasing the capacity of existing infrastructure. The model designation SFP-1G40ALC indicates the 40-km reach, with the ALC designation referring to the specific model variant within the series.

Installation and Mounting

Installation is performed by inserting the module into an SFP slot of a compatible network device. The hot-pluggable function allows installation without powering down the device. The LC duplex connector is connected to the fiber optic cable, ensuring correct polarization and cleaning of the connector to avoid signal loss. The operating temperature of the module ranges from -40 to 85 °C, making it suitable for use in climatically extreme environments. Humidity levels may range from 5–95 % (non-condensing).

Operational Advantages

The module offers high reliability and long service life, emphasized by a 5-year warranty. The digital diagnostics (DDM) enables proactive maintenance and reduces downtime. The hot-pluggable function simplifies network maintenance and expansion. The wide operating temperature range makes the module independent of climatic conditions and suitable for use in harsh industrial environments. Compatibility with WDM systems allows for efficient use of fiber optic infrastructure.

Certifications

The module complies with safety standards UL 62368-1, IEC 62368-1, and EN 60825-1. It is also EMC-compliant according to EN 55032/35, FCC Part 15B, and ICES-003, and EMS-compliant according to IEC 61000-4-2 to -4-11. A marine certification according to DNV is also available, enabling use in marine applications.

Scope of Delivery

The product is delivered with an SFP-1G Series module and a warranty card.

Warranty

The warranty period is 5 years.