• Vibrant pink glossy Juniper fruit sticker for EX4300-48T-DC switch
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Juniper

Juniper EX4300-48T-DC | EX4300 48-Port Gigabit Switch, 550W DC, AFO

EX4300-48T-DC

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Description

The EX4300 is a 1U fixed-configuration Layer 2 and Layer 3 access switch built for campus wiring closets, branch offices, data-centre top-of-rack deployments and DC-powered telco or central-office environments. This 48-port non-PoE model is powered by a 550 W DC supply and uses front-to-back (AFO) airflow.

It provides 48 x 10/100/1000BASE-T access ports and four fixed 40GbE QSFP+ ports, which are preconfigured for Virtual Chassis and can also serve as uplinks. An optional EX-UM-4X4SFP module adds four 1GbE/10GbE SFP+ uplinks. Switching capacity is 248 Gbps unidirectional and 496 Gbps bidirectional, with 369 Mpps wire-speed Layer 2 and Layer 3 throughput. Virtual Chassis links up to 10 members as one logical device over a 320 Gbps backplane. There is no PoE on this SKU. The 550 W DC supply accepts 43.5 to 60 V DC with dual input feeds and dual load-sharing hot-swappable power supply bays.

It runs Junos OS with the Flex Standard feature tier, which needs no extra licence. Supported optics include GbE SFP (SX, LX), 10GbE SFP+ (SR, USR, LR, ER, LRM, DAC) and 40GbE QSFP+ (SR4, DAC). Virtual Chassis interoperates with other EX4300 models, EX4600 and QFX5100.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Virtual Chassis technology manages up to 10 switches as a single device
- Hot-swappable redundant power supply bays and field-replaceable fans
- Four fixed 40GbE QSFP+ ports usable for Virtual Chassis or uplinks
- Optional hot-insertable 1GbE/10GbE SFP+ uplink module
- Modular Junos OS with full Layer 2 and Layer 3 switching
- Six preconfigured port profiles, including desktop, wireless access point and uplink
- Front-panel LCD, USB console, RJ-45 console and out-of-band management ports
- Security features including DHCP snooping, dynamic ARP inspection, IP source guard and MAC limiting

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Access ports: 48 x 10/100/1000BASE-T
- PoE: none (0 W budget)
- Fixed ports: 4 x 40GbE QSFP+, preconfigured for Virtual Chassis
- Optional uplinks: 4 x 1GbE/10GbE SFP+ via EX-UM-4X4SFP module
- Power supply: 550 W DC, AFO (front-to-back airflow)
- DC input range: 43.5 to 60 V, dual input feed
- Switching capacity: 248 Gbps unidirectional, 496 Gbps bidirectional
- Throughput: 369 Mpps wire-speed L2/L3
- Virtual Chassis backplane: 320 Gbps, up to 10 members
- CPU: 1.5 GHz Dual-Core PowerPC
- Memory: 2 GB DRAM with ECC, 2 GB storage
- MAC addresses: 64,000 per system
- Jumbo frames: 9216 bytes
- VLANs: 4093 (IDs 1 to 4094)
- Form factor: 1U rack-mount
- Dimensions (W x H x D): 44.1 x 4.37 x 41.6 cm
- Weight: 5.9 kg without PSU or fans, 7.3 kg with one PSU and two fans
- Cooling: 2 field-replaceable fans, 39.7 dBA
- Operating temperature: 0 to 45 C
- Storage temperature: -40 to 70 C
- Operating humidity: 10% to 85% noncondensing
- Compliance: FCC Part 15 Class A, CE, RoHS 6/6, NEBS GR-1089-Core

FAQs

Q: Does this switch need a licence?
A: It runs the Junos OS image with the Flex Standard feature tier, which needs no extra licence. Flex Advanced and Premium are optional upgrades, and those tiers include Juniper Mist Wired Assurance.

Q: Does it support PoE?
A: No. This 48-port SKU has no PoE and a 0 W PoE budget. Use a PoE model if you need to power phones or access points from the switch.

Q: What power does it require?
A: It uses the 550 W DC AFO power supply (JPSU-550-DC-AFO) with a 43.5 to 60 V DC input and dual input feeds. One supply is the minimum for a fully loaded chassis.

Q: How do I add 10G uplinks?
A: Install the optional EX-UM-4X4SFP uplink module, which adds four 1GbE/10GbE SFP+ ports. The four fixed 40GbE QSFP+ ports can also be used as uplinks.

Q: What airflow does this model use?
A: It uses front-to-back airflow (AFO) and is rated for 0 to 45 C operation.

Q: Which switches can it join in a Virtual Chassis?
A: It interoperates with other EX4300 models, EX4600 and QFX5100 in a Virtual Chassis of up to 10 members. QSFP+ DAC cables for the Virtual Chassis ports are ordered separately.

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