3com 2928 Betriebsanweisung
1-5
Figure 1-3
PoE summary
PoE Configuration Example
Network requirements
z
As shown in
, GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 are connected to IP
telephones.
z
GigabitEthernet 1/0/11 is connected to AP whose maximum power does not exceed 9000
milliwatts.
milliwatts.
z
The power supply priority of IP telephones is higher than that of AP; therefore, the PSE supplies
power to IP telephones first when the PSE power is overloaded.
power to IP telephones first when the PSE power is overloaded.
Figure 1-4
Network diagram for PoE
GE 1/0/1
GE 1/0/11
G
E
1/
0/
2
AP
PSE