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Juniper

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

EX4300-48T-DC-AFI

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Description

The EX4300 is a 1U Layer 2/Layer 3 access switch for campus, branch and data centre edge deployments that need dense 1GbE connectivity with 10GbE and 40GbE uplinks. This variant is built for DC-powered sites such as telco and co-location rooms, and uses back-to-front (AFI) airflow.

It provides 48 x 10/100/1000BASE-T access ports with no PoE, so the PoE budget is 0 W. Four fixed 40GbE QSFP+ ports support Virtual Chassis interconnect, and an optional 4-port 1/10GbE SFP+ uplink module (EX-UM-4X4SFP) adds 10GbE uplinks. Wire-speed Layer 2/Layer 3 throughput is 369 Mpps with 64,000 MAC addresses, 4093 VLANs and 9216-byte jumbo frames. Power comes from a 550 W DC supply with a 43.5-60 V DC input and dual input feed. The chassis supports a second hot-swappable load-sharing power supply for redundancy and has two field-replaceable fans.

It runs Junos OS with the Base feature set (Layer 2 and basic Layer 3). Advanced Layer 3 feature sets require separate licences. Up to 10 EX4300 and EX4600 switches can be joined with Virtual Chassis and managed as one device. A spare power supply is available as JPSU-550-DC-AFI.

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

Features

- Virtual Chassis lets up to 10 EX4300 and EX4600 switches be managed as a single device
- Full suite of Layer 2 and Layer 3 switching capabilities
- Fixed 40GbE QSFP+ ports usable for Virtual Chassis interconnect
- Optional 4-port 1/10GbE SFP+ uplink module
- Dual input feed with hot-swappable load-sharing power supplies for redundancy
- Field-replaceable fans for high availability
- Managed through the Junos OS CLI, Junos Space and Mist Wired Assurance

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/PoE+ ports: 0 (PoE budget 0 W)
- 40GbE ports: 4 x QSFP+ (fixed)
- 10GbE uplinks: 4 x SFP+ via optional uplink module (EX-UM-4X4SFP)
- Power supply: 550 W DC
- DC input voltage range: 43.5-60 V
- Airflow: AFI (back-to-front)
- Layer 2/Layer 3 throughput: 369 Mpps (wire speed)
- MAC addresses: 64,000 per system
- Jumbo frames: 9216 bytes
- VLANs: 4093 (IDs 1 to 4094)
- VST instances: 510
- Virtual Chassis: up to 10 members (EX4300/EX4600)
- Field-replaceable fans: 2
- Acoustic noise: 39.7 dBA
- Operating temperature: 0 to 45 C (32 to 113 F)
- Dimensions (W x H x D): 44.21 x 4.32 x 41.73 cm (17.41 x 1.72 x 16.43 in), 1 RU
- Weight (no PSU or fan module): 5.9 kg (13 lb)
- DRAM: 2 GB with ECC
- Flash: 2 GB
- CPU: 1.5 GHz dual-core PowerPC

FAQs

Q: Does this switch need a licence?
A: It runs Junos OS with the Base feature set, covering Layer 2 and basic Layer 3. Advanced Layer 3 feature sets require separate licences. Mist Wired Assurance is a separate subscription.

Q: Does it support PoE?
A: No. This variant has no PoE or PoE+ ports and a PoE budget of 0 W. It is intended for non-PoE endpoints and servers.

Q: What power does it need?
A: It uses a 550 W DC power supply with a 43.5-60 V DC input and dual input feed. A second hot-swappable power supply can be fitted for load-sharing redundancy, and the spare part is JPSU-550-DC-AFI.

Q: How do I add 10GbE uplinks?
A: Fit the optional 4-port 1/10GbE SFP+ uplink module, EX-UM-4X4SFP. The four fixed 40GbE QSFP+ ports are always available.

Q: Can I stack it with other switches?
A: Yes. Virtual Chassis lets up to 10 EX4300 and EX4600 switches be interconnected and managed as one device. The 40GbE QSFP+ ports can be used for the interconnect with QSFP+ DAC cables.

Q: What does AFI airflow mean?
A: AFI is back-to-front airflow, so air enters at the power supply and fan side and exits at the port side. Check this matches the hot and cold aisle layout of your rack.

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