The SRX550 High Memory Services Gateway provides PoE ports, which supply electric
power over the same ports that are used to connect network devices. PoE ports allow
you to plug in devices that require both network connectivity and electric power, such as
Voice over IP (VoIP) and IP phones and wireless access points.
The PoE ports for the SRX550 High Memory Services Gateway reside on the individual
XPIMs. The SRX550 High Memory Services Gatewaysupports the 16-Port Gigabit Ethernet
XPIM with PoE.
The Services and Routing Engine (SRE) manages the overall system PoE power. You can
configure the services gateway to act as power sourcing equipment to supply the power
to the GPIMs connected on the designated PoE ports.
Table 4 on page 9 lists the SRX550 High Memory Services Gateway PoE specifications.
Table 4: SRX550 High Memory Services Gateway PoE Specifications
ValuesPower Management Schemes
•
IEEE802.3 af
•
IEEE802.3 at
•
Legacy
Supported standards
PoE is supported on the following front panel slots:
•
3
•
4
•
6
•
8
For more information, see “SRX550 High Memory
Services Gateway Front Panel” on page 14.
Supported slots
The 645 W AC and 645 W DC power supplies support
the following capacities:
•
255 W PoE on a single power supply, or with
redundancy using the two power supply option
•
510 W PoE using the two power supply option
operating as nonredundant
Total PoE power sourcing capacity
31.2 WPer-port power limit
•
Static: Power allocated for each interface can be
configured
•
Class: Power allocation for interfaces is decided
based on the class of powered device connected
Power management modes
Related
Documentation
SRX550 High Memory Services Gateway Gigabit-Backplane Physical Interface Modules
Overview on page 23
•
• SRX550 High Memory Services Gateway Power Supply on page 41
• SRX550 High Memory Services Gateway Back Panel on page 19
9Copyright © 2016, Juniper Networks, Inc.
Chapter 1: System Overview
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