User's Manual

2-1
BTR 38 GHz Installation Guide
2Grounding and Surge Protection
Grounding/Lightning Protection
Scope
This chapter presents guidelines for the grounding and electrical protection of
Reunion equipment in typical buildings, assuming
1. indoor equipment is installed in an appropriate equipment room and
2. outdoor equipment is installed on rooftops using a pole mount.
Further, Nortel Networks assumes building electrical systems comply with
the appropriate national and local regulations.
Grounding Methods/Indoor Equipment
Components of a communications system can be grounded together using an
isolated bonding network (IBN). The IBN can be configured in several different
ways:
1. Mesh
2. Mesh – IBN with bonding mat
3. Star or sparse-mesh
In turn, the IBN is bonded at a single point to the Common Bonding Network
(CBN) that forms the principal bonding network in a building. Figure 2-1
shows a typical installation: