EX4300-24T Juniper EX4300 Series Ethernet Switches

EX4300-24T Hardware Identity

EX4300-24T is a Juniper EX4300 fixed-configuration Ethernet switch. Its verified hardware profile is 24 10/100/1000BASE-T access ports; no PoE on access ports. This base order code has no TAA, VC, DC or explicit airflow qualifier in the model string; do not import those properties from a nearby SKU.

Port and power boundary

350 W AC platform power supply class. The uplink configuration is optional uplink module ordered separately. Optics, optional uplink modules, cables and any separately ordered power or mounting items must be reconciled in the final bill of materials.

EX4300 architecture control

EX4300 procurement must treat chassis, power supplies, fans, uplink module and optics as one engineered assembly. Confirm which FRUs ship with the exact model and which are separate, then verify airflow labels across every fan and supply. Record built-in VCP-capable ports, optional uplink module, Junos release and Virtual Chassis role. The acceptance file must distinguish copper, fiber and multigigabit variants instead of using an EX4300 family checklist alone.

Order-form control 1

AC power acceptance requires the supported input range, regional cord, receptacle, circuit capacity and selected supply wattage to be documented. Where redundant supplies are used, place them on the intended independent circuits and test loss of one feed. Do not substitute a DC chassis or mix supply wattage or airflow. Retain supply serials, cord type and circuit labels with commissioning evidence.

Order-form control 2

Where the PID has no explicit AFI or AFO suffix, use the Juniper model table and actual FRU labels to establish the shipped airflow. Record intake and exhaust orientation before rack placement, and reject any replacement fan or supply whose airflow differs. The absence of a suffix is not permission to mix directions or to infer the pattern from another chassis.

SKU-specific acceptance

Use this unit for a copper access refresh only after mapping every legacy endpoint and identifying ports that still require 100 Mbps behavior. Build a twenty-four-row cutover sheet that names old port, new port, VLAN role, authentication dependency and rollback path. Test one low-speed endpoint, one standard gigabit endpoint and every uplink before moving the remaining users. Preserve error counters after the first business day, then close retired switch ports and monitoring objects.

Optics bill

List each optic, cable type, reach, connector and peer interface. Chassis port count does not include the transceivers needed for an operational link.

Power design

Confirm AC or DC input, feed count, connector or cord, supply wattage and redundancy target. The exact chassis suffix must agree with the facility design.

Rack fit

Confirm rack type, depth, rail or bracket kit, service clearance and cable bend radius. Uplink modules and deep optics can change the usable rear clearance.

Receiving

Check chassis label, power supplies, fan labels, modules and accessories against the exact PID before installation. Quarantine mixed airflow or wrong-input substitutions.

Lifecycle

Review Juniper lifecycle and supported-release information before expanding an older platform. Tie spares and new capacity to a dated migration decision.

Migration evidence

Map VLANs, routing, policy, uplinks, PoE endpoints and monitoring dependencies to the successor design. Close old serials only after service and telemetry are verified.

Related Juniper EX records

• EX4300-32F-DC-TAA switch record
• EX4600-40F-DC-AFO switch record
• EX2300-48T-VC switch record

Official Juniper evidence

EX4300 system overview and model table. Verify the current hardware guide, supported Junos release and lifecycle notice at the final design date.