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Phone：+86 17062388866Description
The ENTERASYS A4H124-24FX P0973JN is a high-performance industrial Ethernet switch designed for fiber-optic backbone connectivity in mission-critical automation networks. As part of Extreme Networks’ rugged C-Series, this 24-port managed switch delivers deterministic Layer 3 routing and switching for harsh environments. The ENTERASYS A4H124-24FX features 24x 100/1000BASE-X SFP slots for optical connectivity, enabling long-distance, noise-immune communication in high-EMI zones like substations or foundries. Its dual redundant power inputs (24–58 VDC) and fanless operation ensure 99.999% availability, while operating in extreme temperatures (-40°C to +75°C) with IEC 60068-2-6 vibration resistance.
Equipped with ExtremeXOS® operating system, the switch supports advanced IP routing (OSPFv2, BGP), Precision Time Protocol (PTP IEEE 1588v2), and industrial protocols (PROFINET, EtherNet/IP). The ENTERASYS A4H124-24FX P0973JN provides 140 Gbps switching capacity and 104 Mpps forwarding rates, meeting real-time requirements for motion control and process synchronization. Conformal coating options protect against corrosive atmospheres, making it ideal for offshore, mining, and chemical applications.
ENTERASYS A4H124-24FX P0973JN
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | A4H124-24FX P0973JN |
| Manufacturer | Enterasys Networks (Extreme Networks) |
| Product Type | Industrial Managed Layer 3 Switch |
| Fiber Ports | 24x 100/1000BASE-X SFP |
| Uplink Ports | 4x 10G SFP+ (optional) |
| Switching Capacity | 140 Gbps |
| Forwarding Rate | 104 Mpps |
| Power Input | Dual 24–58 VDC (redundant) |
| Power Consumption | 45W (typical) |
| Operating Temperature | -40°C to +75°C |
| Humidity Tolerance | 5–95% non-condensing |
| Shock/Vibration | 50g / 5g (IEC 60068-2-27/6) |
| Protocols | OSPFv2, BGP, PIM-SM, VRRP |
| Time Synchronization | IEEE 1588v2 (PTP) |
| Security | MACsec, RADIUS, TACACS+ |
| Management | CLI, NetSight, REST API |
| Dimensions | 44 x 440 x 316 mm |
| Weight | 4.8 kg |
| Certifications | IEC 61850-3, IEEE 1613, UL/cUL Class I Div 2 |
Main Features and Advantages
Fiber-optimized resilience:
Optical isolation eliminates ground loops and provides immunity to lightning/EMI. Dual power inputs with 6 kV surge protection ensure zero downtime. Fanless design with IP40-rated housing withstands conductive dust and humidity.
Deterministic performance:
Hardware-based PTP grandmaster capability achieves ±100 ns clock synchronization for motion control networks. Virtual Router Redundancy Protocol (VRRP) enables sub-second failover.
Advanced security:
Media Access Control Security (MACsec) encrypts data at Layer 2. Dynamic VLAN assignment automatically segments OT devices. Ruggedized ExtremeXOS® supports automated threat response policies.
Application Field
The ENTERASYS A4H124-24FX P0973JN secures backbone networks in critical infrastructure:
Energy: Fiber-optic rings for substation automation (IEC 61850-3)
Manufacturing: Synchronized multi-cell robotics over 10 km distances
Transportation: Tunnel communication backbones with corrosive gas resistance
Metals Industry: Blast furnace control networks immune to EMI
Marine: Offshore platform SCADA systems with salt-spray protection
Related Products
ENTERASYS SSA-SFP-1G-LX: 1310nm SFP module for 10 km range
ENTERASYS A4H254-16: Copper/PoE+ counterpart to A4H124-24FX
ENTERASYS C5G124-24F: DIN-rail fiber switch for space-constrained sites
ENTERASYS RPS-1600: Redundant DC power supply
ENTERASYS EPIC-10G-SR: 10G SFP+ module for uplink ports
ENTERASYS I-SID-08P: Industrial media converter for copper-to-fiber migration
ENTERASYS A4H124-24FX P0973JN
Installation and Maintenance
Pre-installation preparation: Verify fiber compatibility (single/multi-mode). Clean optical connectors with lint-free swabs and isopropyl alcohol. Ensure DC power sources are isolated and grounded (<0>
Maintenance recommendations: Monitor optical power levels via CLI (show interface optical). Update firmware biannually using ExtremeXOS® Image Manager. Inspect seals annually for environmental degradation. Replace SFP modules if BER exceeds 10⁻¹².
