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Name:
EX4300-48T-DC-TAA
- Description:
- EX4300 TAA, 48-Port 10/100/1000BaseT + 450W DC PS
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3 Year Extended Warranty
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Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
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If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
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Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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EX4300-48T-DC-TAA Overview
EX4300-48T-DC-TAA is a high-performance Ethernet switch built on a resilient architecture that supports both Layer 2 and Layer 3 capabilities. Designed with a fixed, rack-mount form factor, it delivers 48 copper-based 10/100/1000 ports along with 4 dedicated SFP uplink ports; its stacking feature seamlessly expands operational scalability for growing networks.
Engineered for demanding enterprise and data center applications, the EX4300-48T-DC-TAA combines reliable connectivity with flexible power options and robust processing performance. Its compact design, energy-efficient operation, and Virtual Chassis capability make it ideal for campus networks, branch offices, and high-density environments where streamlined management and scalable performance are essential.
What is the price of EX4300-48T-DC-TAA?
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Explore more options from Switches or explore other Juniper products.
EX4300-48T-DC-TAA Specifications
| Product Type | Switch |
| Power Source | N/A |
| Layer Supported | Layer 2 / Layer 3 |
| Form Factor | Rack-mount |
| Power Consumption | 250W |
| Number Of Ethernet Ports | 24–48 Ports |
| Number Of Downlink Ports | 48 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Twisted Pair |
| Redundant Power Supply Supported | No |
| Manufacturer Part Number | EX4300-48T-DC-TAA |
| Uplink Configuration | 1G / 10G |
| IOS | IP Lite |
| POE Support | Non POE |
| SFP Ports | 4 SFP Ports |
| Memory | 512 MB |
| Rack Units | 1 RU |
| Interface Ports | 10/100/1000 |
| Port/Expansion Slot Details | 48 x 10/100/1000 copper ports, 4 SFP uplink ports |
| Flash Memory | 256 MB |
| Switching Capacity | 176 Gbps |
| Switching Capacity With Stacking | N/A |
| Product Name | Juniper Networks EX4300-48T-DC-TAA Ethernet Switch |
| Height | 1.73 inches |
| Width | 17.5 inches |
| Depth | 11.3 inches |
| Weight | 13 lbs |
EX4300-48T-DC-TAA Use Case
TAA-Compliant Federal Branch Networking with EX4300-48T-DC-TAA
In U.S. federal branch offices requiring Trade Agreements Act compliance, the EX4300-48T-DC-TAA delivers 48× 10/100/1000Base-T ports and a 450 W DC power supply for seamless failover to building DC bus. Outcome: fully TAA-compliant infrastructure with centralized Junos-driven management, zero single‐point‐of-failure, and guaranteed uptime under power fluctuations.
Telecom Cell-Site Aggregation and DC-Powered Resiliency
At remote cell-tower sites, the EX4300-48T-DC-TAA aggregates DSL/Fiber backhaul and CPE connections over 48 copper ports while drawing directly from battery-room DC. Outcome: compact, carrier-grade switching that cuts rack space, eliminates AC-UPS redundancy, and sustains voice/data services through extended power outages.
Industrial Automation Backbone for Critical SCADA Networks
In power generation and distribution substations, the EX4300-48T-DC-TAA forms a hardened Layer-2 backbone for SCADA devices over 48 copper links, with 450 W DC input matching plant DC bus architecture. Outcome: deterministic low-latency transport, simplified compliance with industry safety standards, and uninterrupted supervisory control even during grid disturbances.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| Depth | 11.5 inches | 11 inches | 10.7 inches | 11 inches | 11.3 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.73 inches | 1.75 inches | 1.73 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | LAN Base | N/A | IP Services | IP Lite | IP Lite |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | EX4300-48T-DC | EX4300-48T-DC-AFI | EX4300-24T-TAA | EX4300-48T-AFI-TAA | EX4300-48T-DC-TAA |
| Media Type Supported | Twisted Pair / Fiber | Twisted Pair | Twisted Pair / Fiber | Twisted Pair | Twisted Pair |
| Memory | 256 MB | 256 MB | 512 MB | 4 GB | 512 MB |
| Number of Downlink Ports | 48 Ports | 48 Ports | 24 Ports | 48 Ports | 48 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | N/A | 48 copper 10/100/1000 ports and 4 SFP uplink ports | 24 x 10/100/1000 Ethernet ports and 4 x 1/10G SFP+ uplink ports | 48 fixed 10/100/1000 Ethernet ports and 4 dedicated 1G SFP uplink ports | 48 x 10/100/1000 copper ports, 4 SFP uplink ports |
| Power Consumption | 30 W | 39 W | 46 W | 370 W | 250W |
| Power Source | DC Power Supply | N/A | AC Power Supply | Redundant Power Supply | N/A |
| Product Name | EX4300-48T-DC Ethernet Switch | EX4300-48T-DC-AFI Ethernet Switch | EX4300-24T-TAA Ethernet Switch | Juniper Networks EX4300-48T-AFI-TAA Ethernet Switch | Juniper Networks EX4300-48T-DC-TAA Ethernet Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | No | No | Yes | No |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 176 Gbps | 176 Gbps | 128 Gbps | 1280 Gbps | 176 Gbps |
| Switching Capacity with Stacking | 352 Gbps | 352 Gbps | N/A | N/A | N/A |
| Uplink Configuration | 1G / 10G | 1G | 1G / 10G | 1G | 1G / 10G |
| Weight | 13 lbs | 16 lbs | 7.5 lbs | 12 lbs | 13 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches |
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Questions & Answers
Q
What is the EX4300-48T-DC-TAA switch?
A
The EX4300-48T-DC-TAA is a Juniper Networks 48-port 10/100/1000BaseT Ethernet switch with a 450W DC power supply and Trade Agreements Act compliance.
Q
Is the EX4300-48T-DC-TAA TAA compliant?
A
Yes, the EX4300-48T-DC-TAA meets Trade Agreements Act (TAA) requirements for government and enterprise procurement.
Q
How many 10/100/1000BaseT ports does the EX4300-48T-DC-TAA offer?
A
The EX4300-48T-DC-TAA provides 48 fixed 10/100/1000BaseT RJ-45 ports for high-density connectivity.
Q
What type of DC power supply is installed in the EX4300-48T-DC-TAA?
A
It includes a front-to-back 450W DC power supply designed for −40 to –72VDC input environments.
Q
What is the total DC power capacity of the EX4300-48T-DC-TAA?
A
The integrated DC power supply delivers up to 450W of power to support all 48 ports simultaneously.
Q
Can I hot-swap the DC power supply in the EX4300-48T-DC-TAA?
A
Yes, the DC power supply is hot-swappable, ensuring continuous operation during maintenance.
Q
What is the switching throughput of the EX4300-48T-DC-TAA?
A
The switch delivers up to 176 Gbps of total switching capacity with a forwarding rate of 130 Mpps.
Q
Does the EX4300-48T-DC-TAA support Virtual Chassis technology?
A
Yes, it supports Juniper Virtual Chassis for up to 10 member devices, simplifying management and scaling.
Q
Which uplink modules are compatible with the EX4300-48T-DC-TAA?
A
The switch supports four QSFP+ or QSFP28 uplink modules for 40GbE or 100GbE connectivity.
Q
How can I manage the EX4300-48T-DC-TAA?
A
You can manage it via Junos OS CLI, J-Web GUI, SNMP, or Juniper’s Network Director software.
Q
What security features are included on the EX4300-48T-DC-TAA?
A
It offers MACsec encryption, DHCP snooping, dynamic ARP inspection, port security, and Unified Access Control.
Q
What operating system runs on the EX4300-48T-DC-TAA?
A
The switch runs Juniper’s industry-leading Junos OS for consistency, resiliency, and programmability.
Q
How do I rack-mount the EX4300-48T-DC-TAA?
A
Use the included rack-mount brackets and screws to install the switch in a standard 1U rack space.
Q
What environmental requirements does the EX4300-48T-DC-TAA have?
A
It operates between 0° to 40°C with 5%–90% relative humidity, non-condensing, in a standard telecom rack.
Q
Is the EX4300-48T-DC-TAA covered by a warranty?
A
Yes, Juniper provides a one-year limited hardware warranty with options for extended support services.
Q
Where can I download documentation and software updates for the EX4300-48T-DC-TAA?
A
All manuals, Junos OS releases, and patch releases are available on the Juniper Support & Downloads portal.
Q
How do I obtain technical support for my EX4300-48T-DC-TAA?
A
Contact Juniper Technical Assistance Center (JTAC) or your authorized reseller for 24/7 support and RMA services.
