Zeta Alarm Systems.
ZNDC Installation and Operation Manual
Revision 1.0
Part # MAN-ZNDC-01
Page 21
5
Panel reports a Line Fault. The
Trouble and Line Fault LEDs on the
ZNDC light up. Cannot
communicate to the Central
Station.
Line disconnected, or has bad
connection.
There could be several causes to
this problem. First of all, check your
panel-related events with the two
following charts.
Second, check your lines to see
that they haven’t been
disconnected either at the ZNDC, or
at the wall jack. Examine the lines
to see that they have not been cut
or damaged.
Examine the wall jacks to see that
they have been wired properly.
Security devices such as the ZNDC
use an RJ31X wall jack.
If just one line is having problems,
swap the lines, and see if the
problem follows the line. Note: you
can disable a line in the Phone Line
Configuration section in the
ZNDC_Prog program, but the line
will no longer be supervised.
Also try your COMM TEST button
on the ZNDC. See Section 5.1.
The problem could also be at your
Central Station, if the CS is not also
reporting a Line Fault.
If none of the above suggestions
work, the problem may be the
ZNDC. In this case, please call
Zeta Alarm Systems for Tech
Support.
6
ZNDC won’t scan into panel.
Panel software is not current.
Network wiring is damaged,
disconnected, or not configured
correctly.
Older revisions of panel software
do not support the ZNDC. The
Classic 2000 Mk II panel must have
at least v1.4 to support the ZNDC,
and the Sigma Mk II must have at
least v3.1. Verify the version at the
panel; then check with Zeta Alarm
Systems for the latest revision.
If your software is current, check
the network wiring. Make sure the
“+” and “-” lines are not crossed.
Make sure the ZNDC is powered.
Verify network connection at panel.
Symptoms
Problem
Solution
