Description
Enterasys A2H254-16-RH Product Description
Product Overview
Enterasys A2H254-16-RH is a managed Layer 2 hybrid Ethernet switch belonging to the Enterasys SecureStack A2 series. Designed for enterprise networks, industrial automation communication systems, and high-availability Ethernet infrastructures, Enterasys A2H254-16-RH combines copper Ethernet ports, fiber optic interfaces, and Gigabit uplink capability in a compact rack-mounted platform. It provides a flexible network access solution for environments requiring both electrical and optical connectivity.
The Enterasys A2H254-16-RH integrates 8 × 10/100BASE-TX RJ45 copper ports, 8 × 100BASE-FX fiber optic ports, two Gigabit uplink/stacking ports, and two Mini-GBIC/SFP expansion slots. This hybrid interface design enables connection of conventional Ethernet devices, industrial controllers, remote I/O systems, and fiber-based backbone networks within the same switching platform.
As a member of the SecureStack A2 managed switch family, Enterasys A2H254-16-RH supports advanced Layer 2 networking functions including VLAN segmentation, QoS traffic prioritization, SNMP monitoring, redundant power options, and stack-based management. It is suitable for applications requiring reliable communication between PLC, DCS, SCADA, servers, and field devices.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | A2H254-16-RH |
| Manufacturer | Enterasys Networks |
| Product Series | SecureStack A2 Series |
| Product Type | Managed Layer 2 Hybrid Ethernet Switch |
| Main Function | Industrial Ethernet switching and network management |
| Copper Ports | 8 × 10/100BASE-TX RJ45 |
| Fiber Ports | 8 × 100BASE-FX multimode fiber MT-RJ |
| Gigabit Uplink Ports | 2 × 10/100/1000BASE-TX RJ45 |
| Expansion Ports | 2 × Mini-GBIC/SFP slots |
| Switching Capacity | 11.2 Gbps |
| Forwarding Rate | Approx. 8.3 Mpps |
| MAC Address Table | 8,000 entries |
| Network Protocols | IEEE 802.3, 802.3u, 802.3ab |
| VLAN Support | IEEE 802.1Q VLAN |
| Management Methods | CLI, Web, Telnet, SNMP |
| Console Interface | DB9 serial console port |
| Redundant Power Support | External RPS support |
| Input Voltage | 100–240 VAC |
| Operating Frequency | 50/60 Hz |
| Power Consumption | Approx. 59 W |
| Installation Type | 19-inch rack mounting, 1U chassis |
| Dimensions | 44.1 × 4.4 × 21.0 cm |
| Weight | Approx. 2.61 kg |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -40°C to +70°C |
| Operating Humidity | 5–95% RH non-condensing |
Main Features and Advantages
The major advantage of Enterasys A2H254-16-RH is its combination of copper and fiber Ethernet connectivity. The switch provides eight copper ports for standard Ethernet devices and eight 100BASE-FX fiber ports for long-distance or electrically noisy environments. This architecture allows engineers to build flexible communication networks without installing additional media converters.
Enterasys A2H254-16-RH uses fiber optic interfaces that provide excellent resistance against electromagnetic interference. In industrial plants, substations, and automation facilities where high-voltage equipment and motors may generate electrical noise, fiber communication improves network stability and reduces transmission failures.
A2H254-16-RH
Enterasys A2H254-16-RH provides professional Layer 2 management capabilities including VLAN configuration, traffic prioritization, port monitoring, and SNMP-based network supervision. These functions allow network administrators to separate control traffic from business traffic and improve overall communication efficiency.
The Gigabit uplink ports and Mini-GBIC expansion slots of Enterasys A2H254-16-RH provide flexible connection options for backbone networks. The switch can be deployed as an independent access switch or integrated into larger SecureStack environments to simplify network expansion.
Enterasys A2H254-16-RH delivers wire-speed Layer 2 switching performance suitable for industrial communication systems. Its high switching capacity and low forwarding latency ensure stable transmission of real-time control data, monitoring information, and operational communications.
With support for redundant power solutions and comprehensive diagnostics, Enterasys A2H254-16-RH improves network availability. The device can continue supporting critical applications in environments where communication interruptions may affect production processes or operational safety.
The rack-mounted design of Enterasys A2H254-16-RH simplifies installation and maintenance. Through remote management interfaces, engineers can monitor switch status, analyze network events, and quickly locate communication problems.
Application Areas
Enterasys A2H254-16-RH is widely applied in industrial Ethernet networks, enterprise infrastructures, and automation communication systems requiring reliable copper and fiber integration.
In industrial automation environments, Enterasys A2H254-16-RH is used for communication between PLC controllers, distributed I/O modules, SCADA servers, HMIs, and industrial computers. Its fiber ports provide reliable connections in factories where electromagnetic interference and long cable distances are common.
In power generation and electrical distribution facilities, Enterasys A2H254-16-RH supports communication networks connecting protection systems, monitoring equipment, RTUs, and control platforms. Fiber connectivity improves communication reliability in substations and power control environments.
In oil and gas, petrochemical, and mining industries, Enterasys A2H254-16-RH provides stable Ethernet communication between field devices and control rooms. The combination of optical and copper interfaces makes it suitable for complex industrial network structures.
In transportation infrastructure, Enterasys A2H254-16-RH can be used in railway communication systems, surveillance networks, and intelligent transportation applications requiring reliable data transmission.
In enterprise and campus networks, Enterasys A2H254-16-RH provides managed switching capability for distributed offices, server rooms, and backbone access networks where flexible connectivity is required.
Related Products
- Enterasys A2H254-16: Standard SecureStack A2 hybrid switch model; A2H254-16-RH is a related configuration variant.
- Enterasys A2H124-24FX-RH: Fiber-oriented SecureStack A2 switch with 24 × 100BASE-FX ports.
- Enterasys A2H123-24: 24-port copper Ethernet SecureStack A2 switch for standard LAN access.
- Enterasys A2H124-24: 24-port Fast Ethernet managed switch in the same A2 family.
