Table 19: PoE Specifications for the ACX2000 Routers (continued)
For ACX2000 Universal Access RoutersSpecifications
•
class—Power allocated for each interface can be
configured.
•
static—Power allocated for interfaces is based on the
class of powered device connected.
•
high-power—Power allocated for interfaces up to 65 W
per port.
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 ACX2000 routers, power is allocated taking into account the maximum
power ratings defined for the different classes of devices.
Table 20 on page 143 lists the classes and their power ratings as specified by the IEEE
standards.
Table 20: ACX2000 Universal Access Router PoE Specifications
Minimum Power Levels
Output from PoE PortUsageClass
15.4 WDefault0
4.0 WOptional1
7.0 WOptional2
15.4 WOptional3
Class 4 power devices are
eligible to receive power up to
30 W according to the IEEE
standards.
Reserved4
PoE Options
For ACX2000 Universal Access Routers that support PoE ports, the factory default
configuration enables PoE on the PoE-capable ports, with default settings in effect. You
might not have to do any additional configuration if the default settings work for you.
Table 21 on page 143 shows the PoE configuration options and their default settings for
the PoE controller and for the PoE interfaces.
Table 21: PoE Configuration Options and Default Settings
DescriptionDefaultOption
PoE Controller Options
143Copyright © 2017, Juniper Networks, Inc.
Chapter 4: Configuring Interfaces and Chassis