Cisco Compact Broadband Amplifier 93211 and 93221 安装指南
4
Installation and Setup Instructions of Compact EGC Amplifier 93451
4027571 Rev
B
Important Safety Instructions
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Grounding (Utility AC Powered Equipment in Pedestals, Service Closets, etc.)
This section provides instructions for verifying that the equipment is properly grounded.
Safety Plugs (USA Only)
This equipment is equipped with either a 2-terminal (polarized) safety plug. The wide blade
or the third terminal is provided for safety. Do not defeat the safety purpose of the
grounding-type or polarized safety plug.
or the third terminal is provided for safety. Do not defeat the safety purpose of the
grounding-type or polarized safety plug.
To properly ground this equipment, follow these safety guidelines:
•
Polarized Plug - For a 2-terminal plug (a polarized plug with one wide blade and one
narrow blade), insert the plug into a polarized mains, 2-terminal outlet in which one socket
is wider than the other.
narrow blade), insert the plug into a polarized mains, 2-terminal outlet in which one socket
is wider than the other.
Note: If this plug cannot be fully inserted into the outlet, try reversing the plug. If the plug
still fails to fit, contact an electrician to replace the obsolete 2-terminal outlet.
still fails to fit, contact an electrician to replace the obsolete 2-terminal outlet.
Grounding Terminal
If this equipment is equipped with an external grounding terminal, attach one end of an
AWG18 wire (or larger, it should be green with yellow strip if insulated wire used) or bare
CU wire to the grounding terminal; then, attach the other end of the wire to a ground, such
as a grounded equipment rack.
AWG18 wire (or larger, it should be green with yellow strip if insulated wire used) or bare
CU wire to the grounding terminal; then, attach the other end of the wire to a ground, such
as a grounded equipment rack.
Safety Plugs (European Union)
•
Class II Mains Powered Equipment – Provided with a 2-terminal AC inlet that may be
connected by a 2-terminal power cord to the mains supply outlet. No connection to the
protective ground is required as this class of equipment is provided with double or
reinforced and/or supplementary insulation in addition to the basic insulation provided in
Class I equipment.
connected by a 2-terminal power cord to the mains supply outlet. No connection to the
protective ground is required as this class of equipment is provided with double or
reinforced and/or supplementary insulation in addition to the basic insulation provided in
Class I equipment.
Note: Class II equipment, which is subject to EN 50083-1, is provided with a chassis
mounted equipotential bonding terminal. See the section titled Equipotential Bonding for
connection instructions.
mounted equipotential bonding terminal. See the section titled Equipotential Bonding for
connection instructions.
Equipotential Bonding
If this equipment is equipped with an external chassis terminal marked with the IEC 60417-
5020 chassis icon (
), the installer should refer to CENELEC standard EN 50083-1 or IEC
standard IEC 60728-11 for correct equipotential bonding connection instructions.
General Servicing Precautions
WARNING:
Avoid electric shock! Opening or removing this equipment’s cover may expose you to
dangerous voltages.
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