The Allied Telesis AT-2711FXA/LC-900 is a network adapter card (NIC) for Fast Ethernet over fiber optic with LC connector, connected via a PCI-Express x1 bus. It serves as a fiber-to-the-desktop solution in networks requiring secure and reliable connections, such as industrial environments, public sector, or educational institutions. The card operates at a fixed data rate of 100 Mbit/s and leverages the advantages of fiber optic cables, including excellent EMI immunity, extended transmission distances, and physical security. The connection is made via an LC connector, suitable for modern networks with high demands for reliability and maintainability.

Applications
The AT-2711FXA/LC-900 is designed for industrial applications, secure network segmentation, and integration of legacy devices over fiber optic infrastructure. It is particularly suitable for environments requiring stable, interference-free, and secure data transmission. The card is also intended for networks in the public sector and government agencies, as it complies with the Trade Agreement Act (TAA), making it eligible for use in federal and state agencies. The maximum transmission distance reaches up to 2,000 meters in full-duplex mode and 412 meters in half-duplex mode, making it ideal for large buildings or distributed systems.

Features and Specifications in Detail
The card supports IEEE 802.1p-based traffic prioritization, enabling targeted control of data priorities, and IEEE 802.1x flow control to manage data traffic and prevent overloads. It offers TCP checksum for receive and transmit, enhancing network traffic efficiency, as well as jumbo frames up to 9.6 KB, improving transmission performance for large data packets. The Wake-on-LAN (WoL) function is enabled by default and can be disabled via firmware tools, facilitating remote maintenance and control of systems. Additionally, the card supports PXE (2.1) remote boot, enabling system installation and maintenance over the network.

Technology Explained Simply
The card uses the PCI-Express x1 bus, ensuring a stable and fast connection to the host system. The fiber optic connection via LC connectors ensures high signal quality and is immune to electromagnetic interference (EMI). The fixed 100 Mbit/s rate means the card does not negotiate speeds but operates at full bandwidth immediately, which is advantageous for critical systems. The signaling voltage of 3.3 V is typical for modern PCIe systems and ensures efficient power delivery. The maximum power consumption is 2.0 W, highlighting the card’s energy efficiency.

Compatibility and Accessories
The AT-2711FXA/LC-900 is compatible with various operating systems, including Windows 11, Windows 10, Windows Server 2022, Windows Server 2019, and Linux. Drivers are available for these systems, enabling easy installation and integration. The card comes with low-profile and standard brackets, allowing installation in both standard and slim PCs. For network management, features such as SNMP, WMI, and ACPI 2.0/WoL are available. The card is RoHS-compliant and also meets the requirements of the TAA (Trade Agreement Act), making it suitable for use in public institutions. Compliance with standards such as FCC/EN 55022 Class B, CE, C-TICK, VCCI, and EN 55024 ensures adherence to electromagnetic compatibility and safety requirements.

Installation and Mounting
Installation is done via the PCI-Express x1 slot in the host system. The card is inserted into the slot and secured with the appropriate bracket (low-profile or standard). The delivery includes the low-profile bracket attached to the interface card. A separate standard bracket is not included in the package. Driver installation is performed using the provided driver packages for supported operating systems. The card is designed for server and workstation systems and requires no additional power supply, as it is powered through the PCIe bus.

Operational Advantages
The card offers high reliability due to the use of fiber optic cables, which are immune to EMI. The fixed 100 Mbit/s rate ensures constant bandwidth without speed negotiation. Support for jumbo frames and RSS (Receive-Side Scaling) enhances performance at high data rates. The Wake-on-LAN and PXE functions simplify remote maintenance and installation. TAA compliance makes the card suitable for use in public institutions. The low power consumption of 2.0 W and operating temperature range of 0 °C to 50 °C ensure efficient and reliable operation in various environments.

Key Terms in the Text: network adapter card, Fast Ethernet, fiber optic, LC connector, PCI-Express x1, TAA