Foxboro A4H124-24TX 24-Port Managed Switch

Overview

The Foxboro A4H124-24TX is a 24-port managed Fast Ethernet switch. It belongs to the Enterasys A4 Series, later acquired by Extreme Networks. Although labeled under Foxboro, its core design supports industrial Ethernet networks in control systems. The associated part number P0973JM often refers to configurations or accessories like a redundant power supply.

Technical Specifications

Port Configuration

• 24 × 10/100/1000Base-T (RJ-45, copper Ethernet ports)

• Supports full-duplex, auto-negotiation, and MDI/MDI-X

Switching & Performance

• Switching Layer: Layer 2

• Memory: 16 MB SDRAM, 32 MB Flash

• Diagnostics: Embedded system health monitoring

• VLAN: IEEE 802.1Q compliant

• QoS: IEEE 802.1p priority queuing

• Port Isolation: Increases security and segmentation

• Device Level Ring (DLR): Enables fast ring-based redundancy

Power Supply

• Input Voltage (DC): 24V DC typical

• Input Voltage (AC): 100–240V AC

• Input Current: Max 0.7 A

• Frequency: 50–60 Hz

• Power Consumption: Max 8.5 W

• Redundancy: Supports optional RPS (STK-RPS-150PS)

Environmental Conditions

• Operating Temperature: 0°C to 60°C (32°F to 140°F)

• Storage Temperature: -40°C to 70°C (-40°F to 158°F)

• Humidity: 5%–95%, non-condensing

Mechanical & Mounting

• Dimensions: 14.7 cm (W) × 5.15 cm (H) × 11.4 cm (D)

• Weight: 1.5 kg

• Mounting: Standard 19-inch rack-mountable