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CHAPTER
9
TROUBLESHOOTING
Table 9-1 Troubleshooting Problems and Solutions
Problem
The panel
powers up, but it
does not
respond to any
communication,
cards reads, or
input activation.
No
communications
exist with the
Ethernet port.
ACS4C3 Installation Guide
Solution
Ensure that the Address DIP switches are set the correct values. Turn
off the power (including battery), change the settings, and re-apply
the power.
Only a panel set to be a Primary (Set Bit 3 of DIP switch 1 to ON) will
have communications on the Ethernet port. If you need to use that
port to access the panel, turn off the power (including the battery),
change the switch setting, and reapply the power.
Note: That if the panel is normally not a
Primary on a Multidrop
communication bus, then the Host RS-
485 connection J7/8 should also be
disconnected while Bit 3 of DIP switch
1 is ON. After completion of the
Ethernet session, turn off the power
(including the battery), change the
switch setting, reconnect the Host RS-
485 terminal block, and re-apply the
power.
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