ZyXEL Communications GS1920 Manuale Utente

Pagina di 368
GS1920 Series User’s Guide
27
C
H A P T E R
      3
Hardware Panels
This chapter describes the front panel and rear panel of the Switch and shows you how to make the 
hardware connections. 
3.1  Front Panel
The following figures show the front panels of the Switch. See 
 for 
information on the LEDs.
Figure 7   
Front Panel: GS1920-24
Figure 8   
Front Panel: GS1920-24HP
Figure 9   
Front Panel: GS1920-48
Figure 10   
Front Panel: GS1920-48HP
3.1.1  Gigabit Ethernet Ports 
The Switch has 1000Base-T auto-negotiating, auto-crossover Ethernet ports. In 10/100/1000 Mbps 
Gigabit, the speed can be 10 Mbps, 100 Mbps or 1000 Mbps and the duplex mode can be half 
duplex or full duplex. 
An auto-negotiating port can detect and adjust to the optimum Ethernet speed (10/100/1000 
Mbps) and duplex mode (full duplex or half duplex) of the connected device.
An auto-crossover (auto-MDI/MDI-X) port automatically works with a straight-through or crossover 
Ethernet cable.