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I/O ports and slots
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48 RJ-45 autosensing 10/100/1000 PoE+ ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, IEEE 802.3ab Type 1000BASE-T, IEEE 802.3at PoE+); Media Type: Auto-MDIX; Duplex: 10BASE-T/100BASE-TX: half or full; 1000BASE-T: full only
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4 fixed Gigabit Ethernet SFP ports
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1 Dual-personality (RJ-45 or USB micro-B) serial console port
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Physical characteristics
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Dimensions
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17.44(w) x 13.00(d) x 1.75(h) in (44.3 x 32.26 x 4.45 cm) (1U height)
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Weight
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10.4 lb (4.72 kg)
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Memory and processor
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Processor
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ARM9E @ 800 MHz, 128 MB flash, 256 MB DDR3 DIMM; packet buffer size: 3 MB dynamically allocated
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Mounting
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Mounts in an EIA-standard 19-inch telco rack or equipment cabinet (rack-mounting kit available); horizontal surface mounting; wall mounting
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Performance
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IPv6 Ready Certified
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100 Mb Latency
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< 7.4 µs (LIFO 64-byte packets)
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1000 Mb Latency
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< 2.3 µs (LIFO 64-byte packets)
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Throughput
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up to 77.3 million pps (64-byte packets)
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Switching capacity
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104 Gbps
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MAC address table size
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16000 entries
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Environment
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Operating temperature
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32°F to 113°F (0°C to 45°C)
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Operating relative humidity
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15% to 95% @ 104°F (40°C), noncondensing
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Non-operating/
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-40°F to 158°F (-40°C to 70°C)
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Storage temperature
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Non-operating/Storage relative humidity
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15% to 90% @ 149°F (65°C), noncondensing
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Altitude
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up to 10,000 ft (3 km)
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Acoustic
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Power: 33.6 dB, Pressure: 43.9 dB
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Electrical characteristics
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Frequency
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50/60 Hz
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Maximum heat dissipation
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236 BTU/hr (248.98 kJ/hr), (switch only: 236 BTU/hr; combined switch + max. PoE devices: 1624 BTU/hr)
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AC voltage
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100-127/200-240 VAC
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Current
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5.8/2.9 A
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Maximum power rating
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476 W
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Idle power
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40.1 W
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PoE power
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382 W
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Safety
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UL 60950-1; CAN/CSA 22.2 No. 60950-1; EN 60825; IEC 60950-1; EN 60950-1
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Emissions
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FCC Class A; EN 55022/CISPR-22 Class A; VCCI Class A
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Immunity
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Generic
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EN 55024, CISPR 24
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EN
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EN 55024, CISPR 24
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ESD
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IEC 61000-4-2
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Radiated
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IEC 61000-4-3
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EFT/Burst
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IEC 61000-4-4
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Surge
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IEC 61000-4-5
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Conducted
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IEC 61000-4-6
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Power frequency magnetic field
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IEC 61000-4-8
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Voltage dips and interruptions
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IEC 61000-4-11
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Harmonics
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EN 61000-3-2, IEC 61000-3-2
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Flicker
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EN 61000-3-3, IEC 61000-3-3
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Management
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IMC - Intelligent Management Center; command-line interface; Web browser; configuration menu; out-of-band management (serial RS-232C or Micro USB); IEEE 802.3 Ethernet MIB; Repeater MIB; Ethernet Interface MIB
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Notes
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IEEE 802.3az applies to Gigabit models only; IEEE 802.3at and IEEE 802.3af apply to PoE+ models only. When using SFPs with this product, SFPs with revision 'B' or later (product number ends with the letter 'B' or later, e.g., J4858B, J4859C) are required.
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