• Vibrant pink glossy Juniper EX4300-24T-S switch sticker
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Juniper

Juniper EX4300-24T-S | EX4300 24-Port Gigabit Switch, 4x 40G QSFP+, Spare Chassis

EX4300-24T-S

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Description

The EX4300-24T-S is the spare chassis SKU of the Juniper EX4300 24-port Gigabit, non-PoE Layer 2 and Layer 3 access switch. It suits campus, branch office and data centre access switching, wiring closets, and pay-as-you-grow Virtual Chassis deployments. The spare chassis format suits buyers who build custom power supply and fan configurations or hold spares for existing EX4300 switches.

The switch provides 24 x 10/100/1000BASE-T RJ45 access ports with no PoE, plus 4 x 40GbE QSFP+ fixed ports that can act as Virtual Chassis ports. An optional 4-port 1/10GbE SFP+/SFP uplink module adds further uplink capacity. Packet switching capacity is 224 Gbps unidirectional (448 Gbps bidirectional), with wire-speed Layer 2 and Layer 3 throughput of 333 Mpps. The 320 Gbps Virtual Chassis backplane lets up to 10 members be managed as one logical device. This SKU is a 1U front-to-back airflow (AFO) chassis, and the matching power supply and fan modules are ordered separately.

Compatible optics include GbE SFP (SX, LX), 10GbE SFP+ (SR, USR, LR, ER, LRM, DAC) and 40GbE QSFP+ (SR, DAC). Mounting options include the EX-4PST-RMK, EX-WMK and EX-RMK kits.

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

Features

- Virtual Chassis technology manages up to 10 EX4300 and/or EX4600 switches as a single logical device
- Full suite of Layer 2 and Layer 3 switching capabilities for campus, branch and data centre access
- Hot-swappable internal power supplies and field-replaceable fans for high availability
- Mixed stacking with Juniper QFX5100 switches in a single Virtual Chassis
- Flexible 1GbE and 10GbE uplink module option
- Time domain reflectometry (TDR), MDI/MDIX auto-crossover and port speed downshift
- Security features including DHCP snooping, dynamic ARP inspection, IP source guard and MAC limiting
- Digital optical monitoring on optical ports

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: 24 x 10/100/1000BASE-T RJ45
- PoE: not supported (0 W PoE budget)
- Fixed uplinks: 4 x 40GbE QSFP+
- Optional uplink module: 4-port 1/10GbE SFP+/SFP
- Packet switching capacity: 224 Gbps unidirectional / 448 Gbps bidirectional
- Layer 2/Layer 3 throughput: 333 Mpps (wire speed)
- Virtual Chassis backplane: 320 Gbps, up to 10 members
- CPU: 1.5 GHz Dual-Core PowerPC
- DRAM: 2 GB with ECC
- Storage: 2 GB
- Maximum MAC addresses: 64,000
- VLANs supported: 4093
- Jumbo frames: 9216 bytes
- Airflow: AFO (front-to-back)
- Form factor: 1U rack-mount
- Dimensions (W x H x D), base unit: 44.1 x 4.37 x 41.6 cm
- Weight (no power supply or fan module): 5.9 kg
- Operating temperature: 0 to 45 C
- Storage temperature: -40 to 70 C
- Operating altitude: up to 3,049 m
- Relative humidity operating: 10% to 85% (noncondensing)
- Field-replaceable fans: 2

FAQs

Q: What power supply and fans does this chassis use?
A: It is the AFO variant and pairs with the 350 W AC AFO power supply and the EX4300-FAN fan module. At least one power supply is required, and dual hot-swappable internal supplies can be fitted for redundancy.

Q: Does it provide PoE?
A: No. This is a non-PoE model with 24 Gigabit RJ45 access ports and a 0 W PoE budget.

Q: Which optics and uplinks does it work with?
A: The fixed QSFP+ ports take 40GbE SR and DAC optics. The optional 4-port uplink module accepts GbE SFP (SX, LX) and 10GbE SFP+ (SR, USR, LR, ER, LRM, DAC) optics.

Q: Can it be stacked?
A: Yes. Virtual Chassis supports up to 10 EX4300 or EX4600 members, with QFX5100 mixed stacking. The 40GbE QSFP+ ports act as Virtual Chassis ports, and QSFP+ DAC cables are ordered separately.

Q: What operating system does it run?
A: It runs Junos OS. Optional Enhanced and Advanced Feature Licences and Flex subscriptions are available to extend the feature set.

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