User`s guide

xii Preface
Safety Notices
Danger Notices
A danger notice indicates a hazard that could possibly cause
death or serious personal injury.
The following danger notices are used throughout this manual.
DANGER: To prevent a possible electrical shock when installing
the device, ensure that the power cord for that device is
unplugged before installing signal cables.
DANGER: To prevent a possible electrical shock when adding the
device to a system, disconnect all power cords, if possible, from
the existing system before connecting the signal cable to that
device.
DANGER: To prevent a possible electrical shock during an
electrical storm, do not connect or disconnect cables or station
protectors for communication lines, display stations, printers,
or telephones.
DANGER: To prevent a possible electrical shock from touching two
surfaces with different electrical grounds, use one hand, when
possible, to connect or disconnect signal cables.
DANGER: To avoid a shock hazard:
þ The power cord must be connected to a properly wired and
earthed receptacle.
þ Any equipment to which this product will be attached must
also be connected to properly wired receptacles.