J9781A

48 RJ-45 autosensing 10/100 ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX); Duplex: half or full

2 autosensing 10/100/1000 ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, IEEE 802.3ab Type 1000BASE-T); Duplex: 10BASE-T/100BASE-TX: half or full; 1000BASE-T: full only

2 fixed Gigabit Ethernet SFP ports

Dimensions: 17.40(w) x 9.70(d) x 1.75(h) in (44.2 x 24.64 x 4.45 cm) (1U height)
Weight: 6.3 lb (2.86 kg)

100 Mb Latency < 6.6 µs (LIFO 64-byte packets)
1000 Mb Latency < 2.2 µs (LIFO 64-byte packets)
Throughut up to 13 Mpps (64-byte packets)
Switching capacity: 17.6 Gbps
MAC address table size: 16000 entries

Operating temperature: 32°F to 113°F (0°C to 45°C)
Operating relative humidity: 5% to 95%, noncondensing
Nonoperating/Storage temperature:-40°F to 158°F (-40°C to 70°C)
Nonoperating/Storage relative humidity:15% to 95% @ 149°F (65°C), noncondensing
Altitude: up to 10,000 ft (3 km)
Acoustic: Power: 0 dB, Pressure: 0 dB

Frequency: 50/60 Hz
Maximum heat dissipation: 102 BTU/hr (107.61 kJ/hr)
Voltage: 100 - 240 VAC, rated
Maximum power rating: 29.9 W
Idle power: 17.1 W
Notes: Maximum power rating and maximum heat dissipation are the worst-case theoretical : maximum numbers provided for planning the infrastructure with fully loaded PoE (if equipped), 100% traffic, all ports plugged in, and all modules populated

FCC Class A; EN 55022/CISPR-22 Class A; VCCI Class A