Definitions Of Safety Warning Levels - Juniper MX960 Hardware Manual

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:
Always ensure that all modules, power supplies, and cover panels are fully inserted and that the installation
screws are fully tightened.

Definitions of Safety Warning Levels

The documentation uses the following levels of safety warnings (there are two Warning formats):
NOTE: You might find this information helpful in a particular situation, or you might overlook
this important information if it was not highlighted in a Note.
CAUTION:
discomfort to you or severe damage to the device.
WARNING:
You need to observe the specified guidelines to prevent minor injury or
This symbol alerts you to the risk of personal injury from a laser.
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