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

Juniper EX4300-48T-S | EX4300 48-Port Gigabit Switch, Spare Chassis

EX4300-48T-S

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Description

The Juniper EX4300-48T-S is a spare chassis from the EX4300 series, built for campus, branch and data-centre access switching. It also suits anyone building a custom EX4300-48T configuration, with a choice of AC or DC power and front-to-back or back-to-front airflow.

The chassis provides 48 x 10/100/1000BASE-T access ports (non-PoE) and four fixed 40GbE QSFP+ ports preconfigured for Virtual Chassis, giving a 320 Gbps backplane and up to 10 members managed as one logical device. Switching capacity is 248 Gbps unidirectional (496 Gbps bidirectional), with wire-speed Layer 2 and Layer 3 throughput of 369 Mpps. An optional 4-port 1GbE/10GbE SFP+ uplink module (EX-UM-4X4SFP) adds 10G uplinks. This spare chassis variant has no power supplies, fan modules or optics, so these are selected to suit the deployment.

It runs Junos OS with the base feature set, with optional Enhanced and Advanced Feature Licences for advanced routing, and supports Juniper Mist cloud management with Wired Assurance. Compatible power supplies include the 350 W AC AFO/AFI and 550 W DC AFO/AFI units, paired with the matching EX4300 fan module. Mounting options include EX-RMK, EX-4PST-RMK and EX-WMK.

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

Features

- Virtual Chassis technology: up to 10 EX4300 or EX4600 switches managed as one device
- Four rear-panel 40GbE QSFP+ ports preconfigured for Virtual Chassis
- Hot-swappable fan modules and redundant hot-swappable power supplies
- Modular Junos OS, consistent with Juniper routers, switches and security devices
- Front-panel LCD for bring-up, rollback and status
- Dedicated out-of-band management RJ-45 port, front-panel USB console, rear USB and RJ-45 console
- Managed from Juniper Mist cloud with Wired Assurance (subscription)
- Full Layer 2 and Layer 3 feature set, with EFL and AFL feature licences for advanced routing

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 (non-PoE)
- Fixed 40GbE QSFP+ ports: 4 (Virtual Chassis capable)
- Optional uplink module: 4-port 1GbE/10GbE SFP+ (EX-UM-4X4SFP)
- Virtual Chassis backplane: 320 Gbps, up to 10 members
- Switching capacity: 248 Gbps unidirectional / 496 Gbps bidirectional
- Layer 2/Layer 3 throughput: 369 Mpps (wire speed)
- DRAM: 2 GB with ECC
- Storage: 2 GB
- CPU: 1.5 GHz dual-core PowerPC
- Switching engine mode: Store and forward
- Maximum MAC addresses: 64,000
- Jumbo frames: 9216 bytes
- VLANs supported: 4093
- Maximum ARP entries: 64,000
- IPv4 unicast routes in hardware: 16,000 prefixes, 32,000 host routes
- LAGs supported: 128, up to 16 ports per LAG
- Dimensions (W x H x D): 44.1 x 4.37 x 41.6 cm
- Weight (no power supply or fan module): 5.9 kg
- Rack units: 1U
- Operating temperature: 0 to 45 C (AFO), 0 to 35 C (AFI)
- Storage temperature: -40 to 70 C
- Operating altitude: up to 3,049 m
- Relative humidity (operating): 10% to 85% non-condensing

FAQs

Q: Which power supplies and fans does the EX4300-48T-S use?
A: It is supported with the 350 W AC AFO supply and EX4300-FAN, the 550 W DC AFO supply and EX4300-FAN, or the 350 W AC AFI and 550 W DC AFI supplies with the EX4300-FAN-AFI. The 715 W, 1100 W and 1400 W AC supplies are not supported on this chassis.

Q: Does it need a licence for routing features?
A: It runs Junos OS with the base feature set. The Enhanced Feature Licence (EX4300-48-EFL) adds OSPF, PIM, IGMP and VRF-Lite, and the Advanced Feature Licence (EX4300-48-AFL) adds IS-IS and BGP, requiring EFL first.

Q: Can I add 10G uplinks?
A: Yes. The optional EX-UM-4X4SFP uplink module adds four dual-mode 1GbE/10GbE SFP+ ports. The four fixed 40GbE QSFP+ ports are also available for Virtual Chassis or uplink use.

Q: Which optics work with this switch?
A: Supported optics include SFP 1000BASE-SX/LX, SFP+ SR, USR, LR, ER, LRM and DAC, and QSFP+ SR4 and DAC.

Q: Does this switch provide PoE?
A: No. The EX4300-48T has 48 non-PoE Gigabit ports, so the PoE budget is 0 W. PoE models in the EX4300 range are available for powered devices.

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