Dell PowerConnect J-SRX210 Hardware Guide - Page 48

PoE Classes and Power Ratings

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PowerConnect J-SRX210 Services Gateway Hardware Guide Table 16: J-SRX210 Services Gateway PoE Specifications (continued) Power Management Schemes Values Supported ports Total PoE power sourcing capacity The following ports support PoE: • ge-0/0/0 • ge-0/0/1 • fe-0/0/2 • fe-0/0/3 50 watts Per-port power limit Power management modes 30 watts • Static: power allocated for each interface can be configured • Class: power allocated for interfaces is decided based on the class of powered device connected PoE Classes and Power Ratings A powered device is classified based on the maximum power that it draws across all input voltages and operational modes. When the class-based power management mode is configured on the services gateway, power is allocated by taking into account the maximum power ratings defined for the different classes of devices. Table 17 on page 32 lists the classes and their power ratings as specified by the IEEE 802.3 AF standard. Table 17: PoE Classes and Power Ratings on the J-SRX210 Services Gateway Class Maximum Power Level Output from the PoE Port 0 15.4 watts 1 4.0 watts 2 7.0 watts 3 15.4 watts 4 30.0 watts 32

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Table 16: J-SRX210 Services Gateway PoE Specifications
(continued)
Values
Power Management Schemes
The following ports support PoE:
•
ge-0/0/0
•
ge-0/0/1
•
fe-0/0/2
•
fe-0/0/3
Supported ports
50 watts
Total PoE power sourcing capacity
30 watts
Per-port power limit
•
Static: power allocated for each interface
can be configured
•
Class: power allocated for interfaces is
decided based on the class of powered
device connected
Power management modes
PoE Classes and Power Ratings
A powered device is classified based on the maximum power that it draws across all
input voltages and operational modes. When the class-based power management mode
is configured on the services gateway, power is allocated by taking into account the
maximum power ratings defined for the different classes of devices.
Table 17 on page 32 lists the classes and their power ratings as specified by the IEEE
802.3 AF standard.
Table 17: PoE Classes and Power Ratings on the J-SRX210 Services
Gateway
Maximum Power Level Output from the PoE
Port
Class
15.4 watts
0
4.0 watts
1
7.0 watts
2
15.4 watts
3
30.0 watts
4
32
PowerConnect J-SRX210 Services Gateway Hardware Guide