11
Power over Ethernet
Complies with IEEE 802.3af/at Power over Ethernet end-span PSE
Up to 8/16/24 ports of IEEE 802.3af/at devices powered
Supports PoE Power up to 32 watts for each PoE port
Each port supports 52V DC power to PoE powered device (GSD-1222VHP)
120-watt PoE budget (GSD-1222VHP)
Each port supports 54V DC power to PoE powered device (GSW-1820VHP/
GSW-2620VHP)
300-watt PoE budget (GSW-1820VHP/GSW-2620VHP)
Auto detects powered device (PD)
Circuit protection prevents power interference between ports
Remote power feeding up to 100m in standard mode and 250m in extend
mode
Smart LCD
The LCD switch features
“Standard”
,
“VLAN”
and
“Extend”
mode selection;
the
“Extend”
mode features 20-watt PoE transmission distance of 250m at
speed of 10Mbps and VLAN isolation
The LCD switch is able to isolate ports to prevent broadcast storm and defend
DHCP spoofing
Power low-voltage, power over-voltage and PSE over-temperature protection
Screen saver, fan control, factory default and save configuration
PoE management
- Total PoE power budget control
- Per port PoE function enable/disable
- PoE port power feeding priority
- Per PoE port power limitation
- PD alive check
Switching
Hardware-based 10/100/1000Mbps auto-negotiation and auto MDI/MDI-X
Flow control for full duplex operation and back pressure for half duplex
operation
9216bytes packet size
Integrates address look-up engine, supporting 8K absolute MAC addresses
IEEE 802.1Q VLAN transparency
Automatic address learning and address aging
