Xen Topaz System Hardware Manual
Installing the Main KSU - 25
Doc. No. 8846 - Release 1.1
September 2004
S
ECTION
3
GROUNDING & ACD
C
ABLING
3.1 Grounding the KSU
The Earth terminal is located near the Power Supply on each KSU,
indicated by the symbol . . The Sub-Cover must be opened in order
to access to it.
1. Connect the Earth terminal to the verified Earth Ground point using
16AWG (2.5mm
2
) wire.
CONNECTION REQUIREMENTS FOR EARTHING THE TOPAZ KSU
Because this Topaz KSU has been ACA approved as an Earthed-SELV
Customer Switching System for connection to a telecommunications
network, the KSU Earth terminal (on the 308M System Mainboard) MUST
be permanently connected to Earth by connecting a minimum
of 2.5mm2
green/yellow conductor cable.
This cable MUST be connected between a Multiple Earth Neutral (MEN)
Bonding Bar at the nearest convenient mains Switch Board to the KSU.
This cable must serve no other purpose than installing the KSU.
CAUTION: If this cable is not installed or requires disconnection, then the
telecommunication network connection(s), namely CO and/or ISDN, must
be disconnected first
from the KSU.
Liability for this installation rests solely with the licensed installer/dealer. It is
recommended that the installer provide their label and it is to be placed in
the Main Switch Board, certifying that the installation complies with the
safety earthing installation manual instructions for the Topaz KSU Section
3.1.
(Technical References
: AS/NZS 60950:2000, ACIF S009:2001. See
Protective Earthing Conductor requirements.)
• The grounding cable is supplier-provided (not attached to the system).
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