Juniper MX480, Hardware Manual

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General Safety Guidelines and Warnings
The following guidelines help ensure your safety and protect the device from damage.
The list of guidelines might not address all potentially hazardous situations in your working
environment, so be alert and exercise good judgment at all times.
•
Perform only the procedures explicitly described in the hardware documentation for
this device. Make sure that only authorized service personnel perform other system
services.
•
Keep the area around the device clear and free from dust before, during, and after
installation.
• Keep tools away from areas where people could trip over them while walking.
• Do not wear loose clothing or jewelry, such as rings, bracelets, or chains, which could
become caught in the device.
•
Wear safety glasses if you are working under any conditions that could be hazardous
to your eyes.
• Do not perform any actions that create a potential hazard to people or make the
equipment unsafe.
•
Never attempt to lift an object that is too heavy for one person to handle.
• Never install or manipulate wiring during electrical storms.
• Never install electrical jacks in wet locations unless the jacks are specifically designed
for wet environments.
•
Operate the device only when it is properly grounded.
• Ensure that the separate protective earthing terminal provided on this device is
permanently connected to earth.
•
Replace fuses only with fuses of the same type and rating.
•
Do not open or remove chassis covers or sheet-metal parts unless instructions are
provided in the hardware documentation for this device. Such an action could cause
severe electrical shock.
•
Do not push or force any objects through any opening in the chassis frame. Such an
action could result in electrical shock or fire.
• Avoid spilling liquid onto the chassis or onto any device component. Such an action
could cause electrical shock or damage the device.
•
Avoid touching uninsulated electrical wires or terminals that have not been
disconnected from their power source. Such an action could cause electrical shock.
• Some parts of the chassis, including AC and DC power supply surfaces, power supply
unit handles, SFB card handles, and fan tray handles might become hot. The following
label provides the warning of the hot surfaces on the chassis:
Copyright © 2019, Juniper Networks, Inc. 384
MX480 Universal Routing Platform Hardware Guide