The Aruba JL357A 2540 48G is a fully managed Layer 2 Gigabit switch with advanced PoE+ support and enterprise-grade performance. Designed for edge access in campus or branch networks, it features 48 Gigabit RJ-45 ports with 370W PoE+ power and 4 high-speed 10G SFP+ uplinks. Its robust feature set includes advanced QoS, intuitive management via CLI, SNMP, and web, and comprehensive security controls for scalable deployments.
With a powerful dual-core processor, high throughput, and energy-efficient 80 Plus Silver certification, this refurbished unit is ideal for organisations seeking reliable wired connectivity with future-ready capabilities.
Key Features & Benefits
48× 10/100/1000 PoE+ ports with 370W total PoE power for VoIP, IP cameras, and access points
4× SFP+ uplink ports delivering 1/10Gbps fiber connectivity for aggregation or core access
Enterprise-grade Layer 2 switching with low latency, 176 Gbps switching capacity, and 112 Mpps throughput
Dual-core ARM CPU and 1GB RAM with 12.38MB packet buffer for high-performance traffic handling
Full management via Aruba AirWave, CLI, SNMP, and web GUI
Advanced power efficiency with 80 Plus Silver certification and idle power of just 48.6W
Extensive environmental and EMC certifications for safe, reliable operation in harsh network environments
Ideal Uses
Enterprise edge switching for large offices, schools, and healthcare facilities
High-density PoE deployment for surveillance and wireless access infrastructure
Branch networks requiring secure, remotely managed switch solutions
Upgrade path for legacy networks to modern, 10Gb-ready fiber uplinks
Specifications
Condition: Refurbished device with minor scratches and scuffs. Device has been extensively tested and is fully functional.
Brand: Aruba
Model: JL357A 2540 48G PoE+ 4SFP+
Form Factor: 1U Rackmount
Dimensions (H × W × D): 4.39 × 44.25 × 30.42 cm
Weight: 4.46 kg
Processor: Dual-Core ARM Cortex A9 @ 1016 MHz
Memory: 1 GB DDR3 SDRAM
Packet Buffer Size: 12.38 MB
Ports:
48 × RJ-45 autosensing 10/100/1000 ports (PoE+)
4 × SFP+ 1/10 GbE uplink ports (PHY-less)
1 × RJ-45 or USB micro-B serial console port
Performance:
Latency (1000Mb): < 3.8 µs (64B packets)
Latency (10Gb): < 1.6 µs (64B packets)
Throughput: Up to 112 Mpps
Switching Capacity: 176 Gbps
MAC Table Size: 16,384 entries
IPv4 Routing Table: 2000 entries
IPv6 Routing Table: 1000 entries
Power Supply: Internal, AC
PoE Power Budget: 370W
Input Voltage: 100127 / 200240 V AC
Frequency: 50/60 Hz
Max Power Rating: 459 W
Idle Power: 48.6 W
Max Heat Dissipation: 1652.13 kJ/hr (1566 BTU/hr)
Cooling: Side-to-side airflow
Operating Temp: 0°C to 45°C (up to 5000 ft), 0°C to 40°C (up to 10000 ft)
Operating Humidity: 15% to 95% (non-condensing)
Acoustic Output: 55.7 dB (power), 41.7 dB (pressure)
Certifications:
Safety: UL 60950-1, IEC 60950-1, CSA 22.2, EN 60825-1
Emissions: FCC Class A, ICES-003 Class A, VCCI Class A
Immunity: IEC 61000-4-x series, EN 55024, EN 61000-3-2/3
Management:
Aruba AirWave, IMC
CLI, SNMP, Telnet, FTP
Web browser, config menu, RMON1
Out-of-band management (RS-232C or micro USB)
Warranty: 3 Month Carry-in Warranty
What's in the Box:
Aruba JL357A 2540 48G PoE+ 4SFP+ Switch
Power Cable
