DAHUA 28 PORT MANAGED GB SWITCH SG4028, Interfata:Port 1-26: 26 × RJ45 10/100/1000Mbps, Port 27-28: 2 × SFP 1000Mbps,

Descriere

Power over Ethernet – PoE

Reprezinta modalitatea de alimentare a camerelor sau a altor echipamente IP, prin intermediul cablului de retea. Implementarea retelei se rezuma la un singur cablu, prin care este transmis semnalul de date cat si alimentarea echipamentului. Prin intermediul PoE, instalarea sistemelor de supraveghere devine mult mai simpla, mai sigura si mai putin costisitoare.

Viteza transfer

Gigabit Ethernet, o tehnologie de transmisie de date bazata pe formatul cadrului Ethernet si protocolul utilizat in retelele locale (LAN), ofera o rata de transfer de 1 miliard de biti pe secunda (un gigabit). Gigabit Ethernet este definit ca standardul IEEE 802.3 si este in prezent folosit in ulte retele de intreprinderi. Reteaua Gigabit Ethernet este realizata in principal pe fibra optica (cu distante foarte scurte pe suport de cupru). Intr-o retea Gigabit se pot alimenta si retelele Ethernet LAN deja existente de 10 sau 100 Mbps.

Specificatii tehnice

Technical Specification
Hardware
Included Power Adapter Yes
Ethernet Port 26
Optical Port 2
Ethernet Port Speed 10/100/1000 Mbps
Optical Port Speed 1000 Mbps
Description of Function Slots Port 1-26: 26 × RJ45 10/100/1000Mbps
Port 27-28: 2 × SFP 1000Mbps
Debugging Console × 1
Reset Button 1
Power Supply 12 VDC
Operating Temperature –10°C to +55°C (+14°F to +131°F)
Operating Humidity 10%–90% (RH)
Storage Temperature –40°C to +75°C (–40°F to +167°F)
Storage Humidity 5%–95% (RH)
Power Consumption Idling: ≤ 6 W;
Full load: 24 W
Performance
MTBF 467125.73 hours
Switching Capacity 56 Gbps
Packet Forwarding Rate 41.664 Mpps
Packet Buffer Size 4.1 Mbit
Jumbo Frame 10K Byte
MAC Table Size 8K
VLAN Number 4K
VLAN Interface 10
Communication Standard IEEE 802.3x

Feature
Spanning Tree Protocol STP, RSTP
VLAN Function Yes
Link Aggregation Static link aggregation; LACP
IEEE 802.3x Flow Control IEEE 802.3X-based flow control (full-duplex)
Multicast IGMP Snooping
DHCP Function
DHCP Client
DHCP-Server
DHCP-Snooping
Security IEEE 802.1x
Equipment Management WEB(http and https)
General
Statics Protection Air discharge: 8 kV;
Contact discharge: 6 kV
Lighting Protection Common mode: 2 kV;
Differential mode: 1 kV
Net Weight 1.57 kg (3.46 lb)
Gross Weight 2.25 kg (4.96 lb)
Product Dimensions 440 mm × 163.85 mm × 43.65 mm (17.32" × 6.45"
× 1.71")
Packaging Dimensions 520 mm × 271 mm × 107 mm (20.47" × 10.67" × 4.21")
Certifications CE

Ordering Information
Type Model Description
SFP module
GSFP-1310T-20-SMF 1.25G 1310/1550nm, 20km, LC, Singlemode
GSFP-1310R-20-SMF 1.25G 1550/1310nm, 20km, LC, Singlemode
GSFP-1310-20-SMF 1.25G 1310nm, 20km, LC, Single-mode
GSFP-850-MMF 1.25G 850nm,550m,LC, Multi-mode