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Dahua Technology remporte le Red Dot Design Award 2026 pour son chargeur AC double port D-Volt Gemini

2026-04-17

Dahua Technology remporte le Red Dot Design Award 2026 pour son chargeur AC double port D-Volt Gemini

SG4028LP

Vue d’ensemble Spécifications Télécharger Demande commerciale
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SG4028LP

28-Port Cloud Managed Desktop Gigabit Switch with 24-Port PoE

Points clés
    1.Supports cloud managed via DoLynk care
    2.Auto-generates network toplogy simplifying management
    3.Complies with IEEE802.3af, IEEE802.3at, Hi-PoE & IEEE802.3bt, up to 90W for single port
    4.Working in temperatures from-10°C to +55°C
    5.Supports 250 m long distance PoE tansmission, PoE watchdog
    6.Compatible with STP/RSTP, enhance the stability.
Demande commerciale
Fiche technique

Spécifications

Basic

Layer Layer 2
Switching Capacity 56 Gbps
Packet Forwarding Rate 41.66 Mpps
Description of Function Slots Port 1-24: 24 × RJ45 10/100/1000 Mbps (PoE); Port 25-26: 2 × RJ45 10/100/1000 Mbps (uplink); Port 27-28: 2 × SFP 1000 Mbps (uplink)
Operating Temperature –10 °C to +55 °C (+14 °F to +131 °F)
Operating Humidity 5%–95% (RH), non-condensing
Storage Temperature –40 °C to +70 °C (–40 °F to +158 °F)
Storage Humidity 5%–95% (RH), non-condensing
Power Supply Built-in power supply: 100–240 VAC, 47–63 Hz, max 4A
Power Consumption Idling: ≤8.3 W
Full load: 265 W
Statics Protection Air discharge: 8 kV; Contact discharge: 6 kV
Lightning Protection Common mode: 4 kV
Differential mode: 2 kV
Net Weight 2.50 kg (5.5 lb)
Gross Weight 3.15 kg (6.93 lb)
Product Dimensions 440 mm × 220 mm × 44 mm (17.32" × 8.66" × 1.73") (L × W × H)
Packaging Dimensions 540 mm × 342 mm × 90 mm (21.26" × 13.46" × 3.54") (L × W × H)
Casing Material Sheet metal
Installation Desktop mount; rack mount

PoE

PoE Yes
PoE Power Port 1-2 ≤ 90 W, Port 3-24 ≤ 30 W, total ≤ 240 W
PoE Protocol IEEE802.3af; IEEE802.3at; Hi-PoE; IEEE802.3bt
PoE Power Consumption Management PoE power consumption management; PoE power on/off; turns off PoE if overload is detected
PoE Pin Assignment 1,2,4,5（V+）,3,6,7,8（V-）
Long Distance PoE Transmission Yes

Hardware

Reset Button 1

Performance

MTBF 67.80 years
Packet Buffer Size 4 Mbit
Jumbo Frame 15K Byte
MAC Table Size 8K
Communication Standard IEEE 802.3
IEEE 802.3u
IEEE 802.3x
IEEE 802.3ab
IEEE 802.3az
IEEE 802.3z
IEEE 802.3ad
VLAN Number 32

Feature

Ethernet Loop Protection STP/RSTP
VLAN Function IEEE 802.1Q VLAN
Link Aggregation Static Aggregation
Port Feature IEEE 802.3x Flow Control
Unknown Unicast Suppression
Multicast Storm Control
Broadcast Storm Control
MAC+Port Binding
Loop Prevention
Mirror N:1 Mirroring
Local Port Mirroring
Reliability LLDP
DHCP Function DHCP Client
Security Port Isolation
Equipment Management Web Management
Cloud Management
Logs
Fault Alarm

General

Packing List 1 × Quick Start Guide
1 × Legal and Regulatory Information
1 × Power Cord
1 × Rack-mounting Kit

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