3com 4210 PWR 9-Port 3CR17341-91-ME 用户手册

产品代码
3CR17341-91-ME
下载
页码 567
340
C
HAPTER
 31: P
O
E C
ONFIGURATION
A PoE-enabled Switch 4210 has the following features:
As the PSE, it supports the IEEE802.3af standard. It can also supply power to 
some PDs that do not support the 802.3af standard.
It can deliver data and current simultaneously through data wires (1,2,3,6) of 
The PSE processing software on the switch can be upgraded online.
The switch provides statistics about power supplying on each port and the 
whole equipment, which you can query through the display command.
The switch provides two modes (auto and manual) to manage the power 
feeding to ports in the case of PSE power overload.
The switch provides over-temperature protection mechanism. Using this 
mechanism, the switch disables the PoE feature on all ports when its internal 
temperature exceeds 65
°C (149°F) for self-protection, and restores the PoE 
feature on all its ports when the temperature drops below 60
°C (140°F).
The switch supports the PoE profile feature, that is, different PoE policies can 
be set for different user groups. These PoE policies are each saved in the 
corresponding PoE profile and applied to ports of the user groups.
When you use the PoE-enabled Switch 4210 to supply power, the PDs need no 
external power supply.
If a remote PD has an external power supply, the PoE-enabled Switch 4210 and 
the external power supply will backup each other for the PD.
Only the Ethernet electrical ports of the PoE-enabled Switch 4210 support the 
PoE feature.
PoE Configuration
PoE Configuration Tasks
Table 259   Power supply parameters of PoE switches
Switch
Input power 
supply
Number of 
electrical 
ports 
supplying 
power
Maximum 
PoE 
distance
Maximum 
power 
provided by 
each electrical 
port
Total 
Maximum 
PoE output 
power
4210 PWR 9-Port
AC input
8
100 m
15400 mW
70 W
4210 PWR 18-Port
AC input
16
135 W
4210 PWR 26-Port
DC input
24
370 W
370 W
AC input
Table 260   PoE configuration tasks
Task 
Remarks 
Required 
Optional 
Optional 
Optional