Product Specification |
Overview | HPE Office Connect HPE-1820-48G (J9981A) L2-Managed Switch 48 Port ความเร็ว Gigabit, 4 Port SFP รองรับการ Manage ผ่าน Browser ประกัน Limited Lifetime รองรับการบริหารจัดการผ่าน Web, Port Mirroring, QOS, VLAN |
Port | 48 RJ-45 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 4 SFP 100/1000 Mbps ports (IEEE 802.3z Type 1000BASE-X, IEEE 802.3u Type 100BASE-FX) Supports a maximum of 48 autosensing 10/100/1000 ports plus 4 SFP ports |
Dimensions | 17.42(w) x 9.69(d) x 1.73(h) in (44.25 x 24.61 x 4.39 cm) (1U height) |
Weight | 7.3 lb (3.31 kg) |
Memory and processor | ARM Cortex-A9 @ 400 MHz, 128 MB SDRAM; Packet buffer size: 1.5 MB, 16 MB flash |
100 Mb Latency | < 7 µs (LIFO 64-byte packets) |
1000 Mb Latency | < 2 µs (LIFO 64-byte packets) |
Throughput | up to 77.3 Mpps (64-byte packets) |
Switching capacity | 104 Gbps |
MAC address table size | 16000 entries |
MTBF (years) | 61.73 |
Operating temperature | 32°F to 104°F (0°C to 40°C) |
Operating relative humidity | 15% to 95% @ 104°F (40°C) |
Non-Operating temperature | -40°F to 158°F (-40°C to 70°C) |
Non-Operating relative humidity | 15% to 95% @ 140°F (60°C) |
Altitude | up to 9,842 ft (3 km) |
Acoustic | Power: 0 dB no fan |
Frequency | 50/60 Hz |
Voltage | 100 - 127 / 200 - 240 VAC, rated (depending on power supply chosen) |
Current | . 8/. 5 A |
Maximum power rating | 39 W |
Idle power | 28.8 W |
Safety | UL 60950-1; CAN/CSA 22.2 No. 60950-1; EN 60825; IEC 60950-1; EN 60950-1 |
Emmissions | FCC Class A; EN 55022/CISPR-22 Class A; VCCI Class A F |
Denial of service protection | CPU DoS Protection |
General protocols | IEEE 802.1D Spanning Tree Protocol
IEEE 802.1p Priority
IEEE 802.1Q VLANs
IEEE 802.1W Rapid Spanning Tree Protocol
IEEE 802.3ad Link Aggregation Control Protocol (LACP)
IEEE 802.3x Flow Control
RFC 1534 DHCP/BOOTP Interoperation
RFC 2030 Simple Network Time Protocol (SNTP) v4 |
Network management | IEEE 802.1AB Link Layer Discovery Protocol (LLDP) |
รับประกัน | Limited Lifetime |
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