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Specifications
Ports & interfaces
Copper ethernet cabling technology
10BASE-T100BASE-TX1000BASE-T
SFP module slots quantity
4
Basic switching RJ-45 Ethernet ports quantity
48
Basic switching RJ-45 Ethernet ports type
Gigabit Ethernet (10/100/1000)
Fiber optic connector
SFP
Network
IGMP snooping
Yes
Auto-sensing
Yes
Copper ethernet cabling technology
10BASE-T100BASE-TX1000BASE-T
Networking standards
IEEE 802.3IEEE 802.3abIEEE 802.3u
Full duplex
Yes
VLAN support
Yes
Spanning tree protocol
Yes
Port mirroring
Yes
Link aggregation
Yes
Flow control support
Yes
Auto MDI/MDI-X
Yes
10G support
No
Virtual LAN features
VLAN support
Yes
Optical fiber
Fiber optic connector
SFP
Fiber ethernet cabling technology
100BASE-LX100BASE-SX1000BASE-X
Performance
Packet buffer memory
1.5 MB
Processor frequency
400 MHz
Memory type
SDRAM
Internal memory
128 MB
Flash memory
16 MB
Built-in processor
Yes
Processor model
ARM Cortex-A9
Power
Energy Star certified
Yes
AC input voltage
100 - 240 V
AC input frequency
50 - 60 Hz
Power consumption (typical)
39 W
Technical details
Form factor
1U
Product colour
Gray
Processor frequency
400 MHz
Rack mounting
Yes
Built-in processor
Yes
Management features
Switch type
Managed
Web-based management
Yes
Quality of Service (QoS) support
Yes
Switch layer
L2
Data transmission
Throughput
77.3 Mpps
Latency (10-100 Mbps)
7 ‚µs
Latency (1 Gbps)
2 ‚µs
Packet buffer memory
1.5 MB
MAC address table
16000 entries
Switching capacity
104 Gbit/s
Jumbo frames support
Yes
Security
SSH/SSL support
Yes
IGMP snooping
Yes
DHCP features
DHCP client
Certificates
Energy Star certified
Yes
Memory
Packet buffer memory
1.5 MB
Memory type
SDRAM
Internal memory
128 MB
Flash memory
16 MB
Design
Form factor
1U
Product colour
Gray
LED indicators
Yes
Energy Star certified
Yes
Rack mounting
Yes
Indication
LED indicators
Yes
Power over Ethernet (PoE)
Power over Ethernet (PoE)
No
Operational conditions
Storage temperature (T-T)
-40 - 70 ‚°C
Storage relative humidity (H-H)
15 - 95%
Operating temperature (T-T)
0 - 40 ‚°C
Operating relative humidity (H-H)
15 - 95%
Weight & dimensions
Width
442.5 mm
Depth
246.1 mm
Height
43.9 mm
Weight
3.31 kg
Packaging data
Quick start guide
Yes
User guide
Yes
Packaging content
Quick start guide
Yes
User guide
Yes
HPE 1820-48G Managed J9981A L2 Gigabit Ethernet
| Length | 24.61 in |
| Width | 44.25 in |
| Height | 4.39 in |
| Weight | 3.310000 lbs |
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