May 2001
System Hardware Manual
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3.8.2
Grounding Requirements
The KSUs must be properly grounded. B64-U13 and E64-
U13 KSUs are provided with two grounding methods. The
first method is via the protective earth pin of the 3-pin
mains plug. In cases where this ground is questionable, an
alternative ground must be provided.
1.
Connect the grounding cable (green wire) to the
ground terminal on the right side of the Basic KSU.
The grounding cable (locally provided) must have an
AWG greater than #16.
2.
Provide a suitable ground inside of the building in
accordance with local telephone company
procedures.
3.
If no suitable ground is available, a ground rod
should be installed in accordance with the operating
procedures of the local telephone company.
Figure 4-21 KSU Grounding
The Protective Earth and
Telecommunications Reference
Conductor (TRC) is permanently
linked within the KSU, therefore,
the Xen Master does not require
the connection of an external
TRC.
!