Aprašymas

Equipped with a high performance switching engine, the 20-Port All-Gigabit Managed Switch performs optimally. It has low transmission delay, large buffer and is highly reliable. It also has a strong switching capability and optimizes transmission performance when accessing Ultra HD videos. With its full metal design and fanless design, the device has great heat dissipation and is low power consumption,
working in environments ranging from –10°C to 55°C (+14°F to +131°F). With protection against overvoltage, EMC and overcurrent from power input terminals, the switch effectively resists interference from static electricity, lightning, and pulses. It also has powerful network management functions, supporting IGMP Snooping, Link Aggregation, QoS, LLDP, STP/RSTP, Web.

Link Aggregation
Combines multiple physical links into one virtual channel for dynamic redundancy and load balancing, ensuring that the connection remains stable.

Quality of Service (QoS)
Uses mechanisms designed to control bandwidth, delay, jitter, and loss to ensure the performance of services when the capacity is limited.

Link layer discovery protocol (LLDP)
Enables network devices to advertise their information mutually, allowing you to conveniently monitor and manage devices in the local topology. This makes it easy for administrators to effectively perform troubleshooting.

Spanning Tree Protocol (STP)
Uses algorithms that calculate the best loop-free path through a Layer 2 network while providing path redundancy to prevent the occurrence of broadcast storms and enhance the stability of operations and services.

IGMP snooping
Listens to multicast traffic, and solely forwards information to registered clients based on the multicast forwarding table. This ensures the safety of information and improves network efficiency.

Fanless Design
The fanless design reduces noise, enhances user experience, reduces mechanical losses and improves service life to a certain extent.

Supports web management
Supports STP and RSTP
Supports manual aggregation and static LACP protocol aggregation
10/100/1000 Mbps self-adaptive Ethernet port
Highly integrated, it is exquisite, convenient and easy to use

Specifikacija

Summary	Dahua Technology SG4020. Switch type: Managed, Switch layer: L2. Basic switching RJ-45 Ethernet ports type: Gigabit Ethernet (10/100/1000), Basic switching RJ-45 Ethernet ports quantity: 18, Console port: RJ-45. Full duplex. MAC address table: 8000 entries, Switching capacity: 56 Gbit/s. Networking standards: IEEE 802.1x, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z. DC input voltage: 12 V. Rack mounting, Form factor: 1U
Vendor Homepage	https://www.dahuasecurity.com/products/All-Products/Transmission/IT-Channel-Products/Managed-Switch/SG4020
Category Code	SWI
CnCode	85176200
Unit Box Height	0.11
Unit Box Length	0.52
Unit Box Width	0.275
Cloud-managed	No
Quality of Service (QoS) support	Yes
Switch layer	L2
Switch type	Managed
Web-based management	Yes
Basic switching RJ-45 Ethernet ports quantity	18
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Console port	RJ-45
Gigabit Ethernet (copper) ports quantity	18
SFP module slots quantity	2
10G support	No
Copper ethernet cabling technology	1000BASE-T/100BASE-TX/10BASE-T
Ethernet LAN data rates	10,100,1000
Flow control support	Yes
Full duplex	Yes
Link aggregation	Yes
Networking standards	IEEE 802.1x/IEEE 802.3/IEEE 802.3ab/IEEE 802.3ad/IEEE 802.3u/IEEE 802.3x/IEEE 802.3z
Number of VLANs	4000
Spanning tree protocol	Yes
Virtual LAN features	Port-based VLAN/Tagged VLAN
VLAN support	Yes
Forwarding rate	29.76
Jumbo frames	10000
Jumbo frames support	Yes
MAC address table	8000
Packet buffer memory	4.1
Switching capacity	56
DHCP features	DHCP client/DHCP server/DHCP snooping
IGMP snooping	Yes
Multicast support	Yes
Form factor	1U
LED indicators	Yes
Product colour	Black
Rack mounting	Yes
Reset button	Yes
Fanless	Yes
Mean time between failures (MTBF)	467125.73
DC input voltage	12
Power consumption (max)	24
Power source	DC
Power supply included	Yes
Power over Ethernet (PoE)	No
Operating relative humidity (H-H)	10 - 90
Operating temperature (T-T)	-10 - 55
Storage relative humidity (H-H)	5 - 95
Storage temperature (T-T)	-40 - 75
Depth	440
Height	43.65
Weight	1570
Width	163.85
Package depth	520
Package height	107
Package weight	2250
Package width	271
Sustainability compliance	Yes
Compliance certificates	CE
Model name	DH-SG4020
Units per Shipping Box	4
Unit Calculated Volume	0.01864
Unit Calculated Weight	2.95

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