Meridian Nortel 1 Option 11C Mini Installation Manual page 51

Chapter 3 — System and site requirements Page 51 of 332
Protection
Correct grounding is a necessary component of the protection system for
equipment. This grounding includes grounding for outside plant cable shields
and protectors, and the grounds for framework, battery, and logic references.
EMC
To make sure that there is good emission and susceptibility performance of
the equipment, you must consider the Electromagnetic Compatibility (EMC)
grounding requirements.
Installation and Maintenance
A grounding system is cost effective to install and maintain when it is part of
the initial electrical installation for the customer's premises. If you try to
correct violations of national codes after the initial installation, it is both
difficult and costly.
Powering
The grounding system must consider the power options for the equipment.
The grounding system must consider if the equipment is backed up with an
Uninterruptible Power Supply (UPS). Consider the grounding and powering
of all equipment that is part of the telecommunications system as one large
system. Perform the installation taking this information into consideration.
Advances in Technology
The component density on circuit cards continues to increase because of the
miniaturization and multi-layering of printed circuit boards. The operating
speeds of the integrated circuits are ever increasing. Grounding provides
protection for these components, and is very important.
The SPG of a system is the point at which telecommunications equipment
bonds to the ground. A copper busbar normally acts as the system SPG.
Option 11C Mini Planning and Installation Guide