9
Standard, VLAN and Extend Operation Modes Offered
The GSD/GSW 802.3at PoE+ Switch series provides Standard, VLAN and Extend
operation modes. The GSD/GSW 802.3at PoE+ Switch series operates as a normal
IEEE 802.af/at PoE Switch in the Standard operation mode. The VLAN operation
mode features the port-based VLAN function that can help to prevent the IP
camera’s multicast or broadcast storm from influencing each other.
VLAN Isolation Mode
Ports 17 and 18 for uplink
Ports 1~16 Access Permitted
GSW-1820VHP
PC
Ports 1 to 16
Access Denied
PoE
PoE
PoE
1000
1000BASE-SX/LX Fiber-optic
1000
1000BASE-T UTP
PoE
1000BASE-T UTP with PoE
IP Camera
IP Camera
IP Camera
NVR
Standard
>
VLAN
Extend
In the Extend operation mode, the GSD/GSW 802.3at PoE+ Switch series operates
on a per-port basis at 10Mbps duplex operation but can support 20-watt PoE
power output over a distance of up to 250 meters overcoming the 100m limit on
Ethernet UTP cable. With this brand-new feature, the GSD/GSW Series provides
an additional solution for 802.3af/at PoE distance extension, thus saving the cost
of Ethernet cable installation. Its VLAN isolation function isolates ports so as to
prevent broadcast storm and defend DHCP spoofing in the Extend operation mode.
Standard Mode (default)
Power
PoE
100 meters (328 feet)
GSW-1820VHP
PoE
1000BASE-T UTP with PoE
PoE IP Camera
>
Standard
VLAN
Extend
Extend Mode
Power
250 meters (820 feet)
PoE
GSW-1820VHP
PoE
10BASE-T UTP with PoE
PoE IP Camera
Standard
VLAN
>
Extend