Network switch Juniper Networks EX4000 48-port PoE+ (EX4000-48P)

Juniper Networks EX4000 48-port PoE+ (EX4000-48P) is a high-density rack-mount network switch designed for enterprise access and aggregation. With 48 Ethernet ports supporting Power over Ethernet Plus, the switch delivers connectivity and power to devices such as IP phones, wireless access points and network cameras while integrating into campus network architectures for switching, VLAN segmentation and traffic forwarding. The platform is intended for deployments where consolidated port density, PoE+ power delivery and predictable switching performance are required.

Advantages

The EX4000 48-port PoE+ provides a combination of high port density and PoE+ capability in a standard rack form-factor, enabling centralized power and simplified cabling for connected edge devices. Its design supports common campus features such as VLANs and traffic forwarding, allowing integration with existing network policies and management workflows. The switch’s PoE+ support allows powering diverse endpoint equipment without separate power supplies, and the device is suited for environments that require stable wired connectivity and governed QoS.

Suitable for

• Enterprise access layer for offices and campus buildings
• Powering IP telephony endpoints and conference room devices
• Providing power and connectivity to wireless access points
• Feeding PoE cameras and security sensors at the network edge
• Aggregation and access consolidation in wiring closets

Key specifications

• 48 Ethernet ports with Power over Ethernet Plus (PoE+)
• Rack-mountable 1RU or 2RU chassis (manufacturer model intended for rack deployment)
• Layer 2 switching with common campus features including VLAN support and traffic forwarding
• PoE power budget sufficient to support typical IP phones, wireless APs and cameras (PoE+ class)
• Standard Ethernet port speeds compatible with typical enterprise wired devices

How to use

Install the switch in a standard equipment rack and connect the device to the network fabric using uplink ports or aggregated links. Configure basic management access via the switch’s management interface and define VLANs, port assignments and QoS settings according to your network design. Connect endpoints such as IP phones, access points or cameras to PoE-capable ports to deliver both data and power. Monitor PoE power consumption and port status through the management interface and adjust power allocation or port configurations as needed.

Usage recommendations

Ensure the total PoE power budget aligns with the sum of connected devices’ power requirements; plan port-to-device assignments to avoid exceeding available PoE capacity. Use VLANs and access control lists to segment traffic and apply QoS to prioritize time-sensitive services like voice and wireless. Place the switch in a controlled environment with adequate cooling and follow rack-mount installation guidelines for secure mounting and cable management.