3com 4210 PWR 9-Port 3CR17341-91-ME 用户手册
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产品代码
3CR17341-91-ME
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.
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 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.
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.
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
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.
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.
n
■
When you use the PoE-enabled Switch 4210 to supply power, the PDs need no
external power supply.
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.
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 feature.
PoE Configuration
PoE Configuration Tasks
Table 259 Power supply parameters of PoE switches
Switch
Input power
supply
supply
Number of
electrical
ports
supplying
power
electrical
ports
supplying
power
Maximum
PoE
distance
PoE
distance
Maximum
power
provided by
each electrical
port
power
provided by
each electrical
port
Total
Maximum
PoE output
power
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