x 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.