Cisco Prisma II 1310 nm HDTx Transmitters Installation Guide

Page of 162
 
 
 
Important Safety Instructions 
 
 
xiii 
 
Grounding 
This section provides instructions for verifying that the equipment is properly 
grounded. 
Safety Plugs (USA Only) 
This equipment may be equipped with either a 3-terminal (grounding-type) safety 
plug or 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. 
To properly ground this equipment, follow these safety guidelines: 
 
Grounding-Type Plug - For a 3-terminal plug (one terminal on this plug is a 
protective grounding pin), insert the plug into a grounded mains, 3-terminal 
outlet. 
Note:    This plug fits only one way. If this plug cannot be fully inserted into the 
outlet, contact an electrician to replace the obsolete 3-terminal outlet. 
 
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. 
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. 
Grounding Terminal 
If this equipment is equipped with an external grounding terminal, attach one end of 
an 18-gauge wire (or larger) 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 I Mains Powered Equipment – Provided with a 3-terminal AC inlet and 
requires connection to a 3-terminal mains supply outlet via a 3-terminal power 
cord for proper connection to the protective ground. 
Note:    The equipotential bonding terminal provided on some equipment is not 
designed to function as a protective ground connection. 
 
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. 
Note:    Class II equipment, which is subject to EN 50083-1, is provided with a