Chapter 7 Power System Components And Descriptions; Mx240 Power System Overview - Juniper mx240 Hardware Manual

CHAPTER 7
Power System Components and
Descriptions

MX240 Power System Overview

Related
Documentation
Copyright © 2016, Juniper Networks, Inc.
MX240 Power System Overview on page 85
MX240 AC Power Supply Description on page 86
MX240 AC Power Supply LEDs on page 87
MX240 DC Power Supply Description on page 88
MX240 DC Power Supply LEDs on page 90
The MX240 router uses either AC or DC power supplies. You can configure the MX240
router with either one or two high-line (220 V) AC power supplies, two or four low-line
(110 V) AC power supplies, or one or two DC power supplies. The power supplies connect
to the midplane, which distributes the different output voltages produced by the power
supplies to the router components, depending on their voltage requirements. Each power
supply is cooled by its own internal cooling system.
Redundant power supplies are hot-removable and hot-insertable. When you remove a
power supply from a router that uses a nonredundant power supply configuration, the
router might shut down depending on your configuration.
CAUTION: The router cannot be powered from AC and DC power supplies
simultaneously.
NOTE: Routers configured with only one or two power supplies are shipped
with a blank panel installed over the power supply slots that are not
populated.
MX240 AC Power Supply Description on page 86
MX240 DC Power Supply Description on page 88
Troubleshooting the MX240 Power System on page 386
85