Description

Technical Specifications

• Product Model: A2H124-24FX-RH
• Brand: Enterasys (Extreme Networks)
• Warranty: One Year
• Input Voltage: 100–240 V AC, 50/60 Hz
• Operating Temperature: 0°C to +50°C
• Storage Temperature: -40°C to +70°C
• Response Time: Wire-speed Layer-2 packet forwarding with low-latency switching
• Protection Class: Industrial metal chassis, rack-mountable (IP30)
• Accuracy Class: Deterministic Ethernet switching with hardware-based packet processing
• Output Frequency: Fast Ethernet 100 Mbps per port with Gigabit uplink capability
• Rated Current Range: Max input current approx. 1.0 A
• Communication Interface: Fiber-optic MT-RJ ports, RJ-45 Gigabit uplink ports, SFP mini-GBIC slots
• Supported Protocols: IEEE 802.3 Ethernet, VLAN (802.1Q), STP/RSTP/MSTP, LACP, SNMP, IGMP Snooping
• Overload Capacity: External Redundant Power System (RPS) support for high availability
• Port Configuration:
  • 24 × 100Base-FX fiber-optic ports (MT-RJ)
  • 2 × 10/100/1000Base-T RJ-45 uplink/stack ports
  • 2 × SFP (Mini-GBIC) slots for Gigabit expansion
• Switching Capacity: Up to approx. 17.6 Gbps per unit
• MAC Address Table: Up to 8,000 entries
• Memory: 128 MB SDRAM, 16 MB Flash
• CPU: PowerPC MPC8241 (266 MHz)
• Dimensions: Approx. 442 × 211 × 43 mm (1U rack mount)
• Weight: Approx. 2.7 kg

Product Description

Product Overview

The ENTERASYS A2H124-24FX-RH is a stackable Layer-2 managed Ethernet switch designed for high-density fiber-optic networking in industrial automation, enterprise infrastructure, and distributed control systems. It belongs to the SecureStack A2 series developed by Enterasys Networks, which is now part of Extreme Networks.

The switch provides twenty-four 100Base-FX fiber ports, allowing reliable long-distance communication between network devices in environments where electromagnetic interference or physical distance makes copper connections unsuitable. This design makes it particularly suitable for industrial control networks, campus infrastructure, and facility-wide fiber deployments.

In addition to the fiber interfaces, the switch includes Gigabit uplink ports and SFP expansion slots that allow flexible connection to aggregation switches or core network infrastructure. These uplink ports can also function as stacking interfaces, enabling multiple switches to operate as a unified logical system for simplified network management.

Advanced Layer-2 networking features such as VLAN segmentation, Quality of Service (QoS), and spanning-tree protocols ensure stable traffic management and redundancy. The integrated redundant power capability further enhances network availability, making the switch suitable for mission-critical communication systems where continuous operation is required.

Key Functions

High-Density Fiber-Optic Connectivity

The switch provides 24 Fast Ethernet fiber ports that support long-distance communication and immunity to electromagnetic interference. This capability is essential for connecting devices across large facilities or electrically noisy environments.

Stackable Switching Architecture

Multiple switches can be stacked through the Gigabit ports, forming a unified switching platform. This architecture simplifies network administration while increasing port capacity and redundancy.

Advanced Layer-2 Traffic Management

Support for VLAN, QoS prioritization, and spanning-tree protocols allows network administrators to control traffic flows, isolate broadcast domains, and maintain network stability during link failures.

Secure Network Access Control

The switch supports authentication and secure management protocols such as SNMP, SSH, and 802.1X port authentication. These security mechanisms help protect industrial networks from unauthorized access.

Flexible Network Expansion

SFP uplink slots allow administrators to install different fiber transceivers depending on distance and bandwidth requirements, enabling adaptable network design.

Application Scenarios

Distributed Control System (DCS) Networks

Industrial plants often deploy fiber networks to connect controllers, operator stations, and remote I/O systems. The switch provides reliable communication infrastructure for DCS platforms.

Factory Automation and Industrial Ethernet

Manufacturing environments with high electromagnetic interference benefit from fiber-optic communication. The switch ensures stable connectivity between PLCs, robots, and supervisory systems.

Campus and Facility Fiber Networks

Large campuses and industrial sites require fiber-based connections between buildings. The switch enables high-density fiber aggregation for backbone connectivity.

Power and Substation Automation

Power generation plants and substations rely on deterministic network communication for protection relays, monitoring equipment, and SCADA systems. The switch supports these critical communication networks.