• Aruba JL357A 48-port PoE+ switch with 4x 10G SFP+ uplinks
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Aruba

Aruba JL357A | 2540 48-Port Gigabit PoE+ Switch, 370W, 4x 10G SFP+

JL357A

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Description

The Aruba 2540 48G PoE+ 4SFP+ is a fixed-configuration Layer 2 managed access switch built for enterprise campus, SMB and branch-office networks. It suits the access layer, powering wireless access points, IP phones, cameras and IoT devices while passing traffic upstream over 10GbE links.

It provides 48 autosensing 10/100/1000 RJ45 ports with IEEE 802.3at PoE+ and four 1/10GbE SFP+ uplink ports. The internal PoE+ budget is 370W, with up to 30W available per port. Switching capacity is 176 Gbps and forwarding throughput reaches 112 Mpps. Layer 2 switching is paired with static and RIP routing and IPv6. No software licence is required for these features, and optional Aruba Central cloud management is a separate subscription.

The four SFP+ slots accept 1GbE SFP and 10GbE SFP+ optics and DACs. The switch can be managed through Aruba Central, AirWave, ClearPass and IMC, as well as the CLI, web interface and SNMP. It is a 1U rack-mountable unit with side-to-side airflow.

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

Features

- Four built-in 10GbE SFP+ uplinks reduce congestion towards aggregation and core
- Up to 370W of PoE+ power for wireless APs, cameras and IoT devices
- Cloud-manageable with Aruba Central and Zero Touch Provisioning for branch deployment
- Integrates with Aruba ClearPass Policy Manager and AirWave for security and policy management
- Auto-configures PoE priority, VLAN and rogue AP containment when connected to Aruba access points
- Static and RIP routing, ACLs, sFlow, IPv6 and robust QoS
- Aruba ProVision ASIC with low latency and selectable queue configurations
- Management via CLI, web browser, SNMP, Telnet, RMON1 and FTP

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

- Ports: 48 x RJ45 autosensing 10/100/1000 PoE+ (IEEE 802.3at)
- Uplink ports: 4 x SFP+ 1/10GbE (PHY-less)
- Console port: 1 dual-personality serial (RJ45 or USB micro-B)
- PoE budget: 370W PoE+
- Switching capacity: 176 Gbps
- Throughput: up to 112 Mpps
- Processor: Dual-core ARM Cortex A9 at 1016 MHz
- Memory: 1 GB DDR3 SDRAM, 4 GB eMMC
- Packet buffer: 12.38 MB (4.5 MB ingress, 7.875 MB egress)
- Latency (1000 Mb): less than 3.8 µs (64B packets)
- Latency (10 Gbps): less than 1.6 µs (64B packets)
- Routing table size: 2000 IPv4 entries, 1000 IPv6 entries
- MAC address table size: 16384 entries
- Input voltage: 100-127 / 200-240 VAC, 50/60 Hz
- Current: 5.1/2.5 A
- Power consumption: 459W max, 48.6W idle
- Power supply efficiency: 80 PLUS Silver
- Dimensions (H x W x D): 43.9 x 442.5 x 304.2 mm (1U)
- Weight: 4.46 kg
- Operating temperature: 0 to 45 C (up to 5000 ft)
- Storage temperature: -40 to 70 C
- Airflow direction: Side-to-side
- Acoustic: 55.7 dB power, 41.7 dB pressure

FAQs

Q: Does this switch need a software licence?
A: No. Static and RIP routing, ACLs, sFlow and IPv6 are included without a licence. Aruba Central cloud management is optional and sold as a separate subscription.

Q: How much PoE power does it provide?
A: It has a 370W PoE+ budget shared across the 48 access ports, with up to 30W per port under IEEE 802.3at. It runs from an internal AC supply rated 100-127 / 200-240 VAC.

Q: What can I fit in the SFP+ slots?
A: The four SFP+ slots accept 1GbE SFP and 10GbE SFP+ optics and DACs, giving flexible uplinks to an aggregation or core switch.

Q: How can I manage it?
A: It can be managed with Aruba Central, AirWave, ClearPass and IMC, or locally through the CLI, web browser and SNMP. A serial console port is provided for out-of-band access.

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