User's Manual

9
Standard, VLAN and Extend Operation Modes Oered
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 inuencing 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 spoong 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