JUNIPER EX4300-48T-TAA EX4300 Series Ethernet Switches

EX4300-48T-TAA Hardware Identity

EX4300-48T-TAA is a Juniper EX4300 fixed-configuration Ethernet switch. Its verified hardware profile is 48 10/100/1000BASE-T access ports and four QSFP+ ports; no PoE on access ports. The complete code carries TAA procurement-qualified order suffix. Preserve every suffix on the quote, carton and asset record.

Port and power boundary

AC or DC supply according to exact SKU. The uplink configuration is optional four-port SFP+ uplink module. 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.

Order-form control 3

The TAA suffix is part of the procurement identity. Keep the full PID unchanged through quote, purchase order, invoice, carton inspection and asset registration, and let the contracting authority decide eligibility. A base model, VC line or non-TAA substitute requires a new compliance review; technical equivalence alone does not preserve the purchasing requirement.

SKU-specific acceptance

For the standard TAA copper chassis, verify the default airflow and power configuration rather than borrowing AFI or DC assumptions. For the standard TAA 48T line, use the model table and installed FRU labels to establish default power and airflow. Validate forty-eight non-PoE ports, four QSFP+ positions and any optional uplink module as separate items. Do not substitute the AFI or DC variant based on equivalent copper port count.

Failure domain

Define what remains online after loss of one feed, supply, fan, uplink or VC member. Test the approved failure case and retain recovery timing.

PoE load

Build a port-by-port powered-device budget with startup draw, redundancy state and spare margin. Do not equate a PoE-capable port count with enough available watts.

Virtual Chassis

Document member role, Junos release, VCP media, topology and rollback. A VC order qualifier or physical VCP does not remove software and compatibility checks.

TAA control

Keep the complete TAA-qualified order code on the quote, invoice, carton and asset record. Validate procurement eligibility with the contracting authority rather than a shortened base model.

PoE firmware

For multigigabit PoE platforms, verify Junos and PoE controller firmware before enabling higher-power modes. Test representative endpoints and record negotiated class.

Install base

Register additions and FRU changes under the correct support record. Keep serial, site, power, airflow and module inventory synchronized with the operational asset system.

Related Juniper EX records

• EX4300-32F-DC switch record
• EX4300-32F-DC-TAA switch record
• EX2300-48P-TAA 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.