THÔNG TIN THIẾT BỊ

J9781A cung cấp 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.

Thiết bị chuyển mạch Aruba J9781A được tăng cường bảo mật bằng cách sử dụng các công nghệ virtual LANs, link aggregation, hoặc IGMP Snooping boost uplink performance, và loop prevention enhances network reliability. Switch Aruba J9781A​ sử dụng điện AC 220V.

 

DATASHEET J9781A

 

THÔNG SỐ KỸ THUẬT

I/O ports and slots	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
Additional ports and slots	1 dual-personality (RJ-45 or USB micro-B) serial console port
Physical characteristics	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)
Memory and processor	ARM9E @ 800 MHz, 128 MB flash; Packet buffer size: 1.5 MB dynamically allocated, 256 MB DDR3 DIMM
Mounting and enclosure	Mounts in an EIA-standard 19-inch telco rack or equipment cabinet (rack-mounting kit available); Horizontal surface mounting; Wall mounting
Performance	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
Environment	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
Electrical characteristics	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
Safety	UL 60950-1; CAN/CSA 22.2 No. 60950-1; EN 60825; IEC 60950-1; EN 60950-1
Emissions	FCC Class A; EN 55022/CISPR-22 Class A; VCCI Class A
Management	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, aruba switch default enable password, aruba switch configuration guide