Power System Components And Descriptions; M320 Power System Description; M320 Ac Power Supplies Description - Juniper M320 Hardware Manual

CHAPTER 7
Power System Components and
Descriptions

M320 Power System Description

Related
Documentation

M320 AC Power Supplies Description

Copyright © 2015, Juniper Networks, Inc.
M320 Power System Description on page 73
M320 AC Power Supplies Description on page 73
M320 DC Power Supplies Description on page 74
M320 Power Supply LEDs on page 76
The M320 router uses either AC power supplies (see
Description" on page 73), isolated DC power supplies, or nonisolated DC power supplies
(see "M320 DC Power Supplies Description" on page
to the midplane, which distributes the different output voltages produced by the power
supplies to the router components, depending on their voltage requirements. All power
supplies are hot-removable and hot-insertable. Each power supply is cooled by its own
internal cooling system.
The M320 router is configurable with:
Two, three, or four AC power supplies
Two or four DC power supplies (either isolated or nonisolated)
CAUTION: Mixing AC and DC power supplies is not supported and prevents
the router from powering on. You must ensure that all power supplies are the
same model number.
M320 Power Requirements on page 96
Troubleshooting the M320 Power System on page 292
In the AC power configuration, the router contains two to four load-sharing AC power
supplies (see Figure 22 on page
"M320 AC Power Supplies
74). The power supplies connect
74), which are located at the lower rear of the chassis in
73