Replacing An Ac Power Cord On An M40E Power Supply; Replacing An M40E Dc Power Supply - Juniper M40E Hardware Manual

Replacing an AC Power Cord on an M40e Power Supply

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Replacing an M40e DC Power Supply

Copyright © 2010, Juniper Networks, Inc.
All manuals and user guides at all-guides.com
To replace the power cord for an AC power supply:
Locate a replacement power cord with the type of plug appropriate for your
1.
geographical location (see "M40e AC Power, Connection, and Power Cord
Specifications" on page 277).
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to one of the ESD points on the chassis. For more information about ESD,
see "Preventing Electrostatic Discharge Damage to an M Series, MX Series, or T Series
Router" on page 232.
Press the power switch on the power supply faceplate to the
3.
Unplug the power cord from the appliance inlet on the faceplate and from the power
4.
source receptacle.
Insert the appliance coupler end of the replacement power cord into the appliance
5.
inlet on the power supply faceplate and insert the plug into an AC power source
receptacle. Verify that the power cord does not block access to router components
or drape where people could trip on it.
NOTE: The AC power source must supply 220 VAC power (nominal range
200–240 VAC), not 110 VAC power (nominal range 100–120 VAC).
Press the power switch on the power supply faceplate to the
6.
that the green
OUTPUT OK
NOTE: When two power supplies are installed, at least one Routing Engine
and one FPC must also be installed for both power supplies to power on.
In the absence of this minimum load, only one power supply starts. (The
router powers on and operates correctly with one power supply, but
without the redundancy benefit of a second power supply.)
M40e Field-Replaceable Units (FRUs) on page 157
Tools and Parts Required to Remove Components from an M40e Router on page 309
Connecting AC Power to the M40e Router on page 119
Disconnecting AC Power from the M40e Router
M40e AC Power Electrical Safety Guidelines and Warnings on page 256
On a DC-powered router, the router has two load-sharing, redundant DC power supplies.
Each power supply is hot-removable and hot-insertable, as described in "M40e
Field-Replaceable Units (FRUs)" on page 157. When one power supply fails or is powered
Chapter 16: Replacing M40e Hardware Components
LED eventually lights steadily.
( ) position.
OFF O
( ) position. Verify
ON |
215