Dell PowerConnect J-SRX240 Hardware Guide - Page 42

PoE Classes and Power Ratings, Configuring PoE Functionality on the J-SRX240 Services Gateway

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PowerConnect J-SRX240 Services Gateway Hardware Guide Table 15: J-SRX240 Services Gateway PoE Specifications (continued) Power Management Schemes Values Per port power limit Power management modes 30 watts NOTE: Default value is 15.4 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 class-based power management mode is configured on the services gateway, power is allocated taking into account the maximum power ratings defined for the different classes of devices. Table 16 on page 26 lists the classes and their power ratings as specified by the IEEE 802.3 AF standard. Table 16: PoE Classes and Power Ratings Class Minimum Power Level Output from PoE Port 0 15.4 watts 1 4.0 watts 2 7.0 watts 3 15.4 watts 4 30.0 watts Related Topics • J-SRX240 Services Gateway Description on page 3 • J-SRX240 Services Gateway Specifications on page 7 • J-SRX240 Services Gateway Front Panel and Back Panel Views on page 9 • J-SRX240 Services Gateway Built-In Interfaces on page 13 • J-SRX240 Services Gateway LEDs on page 14 • Mini-Physical Interface Modules on the J-SRX240 Services Gateway on page 23 Configuring PoE Functionality on the J-SRX240 Services Gateway To enable the PoE feature support on your J-SRX240 Services Gateway, you must configure the services gateway. 26

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Table 15: J-SRX240 Services Gateway PoE Specifications
(continued)
Values
Power Management Schemes
30 watts
NOTE: Default value is 15.4 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 class-based power management mode is
configured on the services gateway, power is allocated taking into account the maximum
power ratings defined for the different classes of devices.
Table 16 on page 26 lists the classes and their power ratings as specified by the IEEE
802.3 AF standard.
Table 16: PoE Classes and Power Ratings
Minimum Power Level Output from PoE Port
Class
15.4 watts
0
4.0 watts
1
7.0 watts
2
15.4 watts
3
30.0 watts
4
Related Topics
J-SRX240 Services Gateway Description on page 3
•
•
J-SRX240 Services Gateway Specifications on page 7
•
J-SRX240 Services Gateway Front Panel and Back Panel Views on page 9
•
J-SRX240 Services Gateway Built-In Interfaces on page 13
•
J-SRX240 Services Gateway LEDs on page 14
•
Mini-Physical Interface Modules on the J-SRX240 Services Gateway on page 23
Configuring PoE Functionality on the J-SRX240 Services Gateway
To enable the PoE feature support on your J-SRX240 Services Gateway, you must
configure the services gateway.
26
PowerConnect J-SRX240 Services Gateway Hardware Guide