Description
jl254a
Managed Layer‑3 access switch for enterprise edge, SMB, and branch networks. Supports advanced features without separate software licenses.
Hardware Overview
Ports
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48 × RJ‑45 autosensing 10/100/1000 Mbps Ethernet ports
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4 × SFP+ slots (1G/10G uplinks) — PHY‑less design
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1 × Dual‑personality console port (RJ‑45 or micro‑USB)
Performance
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Switching capacity: 176 Gbps
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Forwarding throughput: ~112 Mpps
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Latency: < 3.8 µs @ 1 Gb; < 1.6 µs @ 10 Gb
Processor & Memory
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Dual‑core ARM Cortex‑A9 @ 1016 MHz
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1 GB DDR3 SDRAM
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4 GB eMMC internal storage
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Packet buffer: ~12.38 MB (4.5 MB ingress / 7.875 MB egress)
Layer‑3 & Routing Features
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Static routing
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RIP (Routing Information Protocol)
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Access‑OSPF
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No separate license needed for routing features
Management & Protocol Support
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CLI (Command‑line Interface)
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Web UI
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SNMP
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Telnet
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RMON1
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FTP
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Aruba AirWave
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Aruba Central cloud management
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Intelligent Management Center (IMC)
Security & Networking Features
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VLAN support (IEEE 802.1Q)
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ACLs (Access Control Lists)
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802.1X authentication
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MAC and Web authentication
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RADIUS / TACACS+
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Port security & MAC lockout
(Full advanced security depends on firmware)
Physical & Electrical Specs
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Dimensions: 44.25 × 24.63 × 4.39 cm (1U rack height)
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Weight: ~3.1 kg
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Power: 100‑127 V / 200‑240 V AC
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Max consumption: ~46.6 W
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Heat dissipation: ~157 BTU/hr
specs
| Specification | Details |
|---|---|
| Differentiator | Popular Aruba 52-port Gig + 10G access switch |
| Model Ports | 48 × RJ‑45 autosensing 10/100/1000 ports, 4 × SFP+ 1/10GbE PHY-less |
| Latency | 1000 Mb: < 3.8 µs 10 Gbps: < 1.6 µs |
| Switching Capacity | 176 Gbps |
| Throughput | Up to 112 Mpps |
| Processor & Memory | Dual Core ARM Cortex A9 @ 1016 MHz 1 GB DDR3 SDRAM 4 GB eMMC |
| Packet Buffer | 12.38 MB (4.5 MB Ingress / 7.875 MB Egress) |
| Power Consumption | 46.6 W (maximum) |
| PoE Capability | 740 W PoE+ maximum (depending on model) |
| Heat Dissipation | 157.2 BTU/hr (165.8 kJ/hr) |
| Input Voltage | 100–127 / 200–240 VAC |
| Management Features | Aruba AirWave Central Network Management IMC (Intelligent Management Center) CLI Web browser Configuration menu SNMP manager Telnet RMON1 FTP Out-of-band management (RS-232C or micro USB) |
| Dimensions (HxWxD) | 4.39 × 44.25 × 24.63 cm (1.73 × 17.42 × 9.7 in) |
| Weight | 3.1 kg (6.83 lb) |
| Warranty | Limited Lifetime Warranty |
