Specifications
DS7400Xi Ver. 3+ Reference Guide Copyright © 1995-96 Detection Systems, Inc. Page 81
General System Problems (Continued)
Symptom Probable Cause Possible Solution
#87 display = RAM Fault
#89 display = System Fault 01
or
#87 display = ROM Fault
#89 display = System Fault 02
or
#87 display = EEProm Fault #89 dis-
play = System Fault 03
#87 display = Communicator Err
#89 display = Report Failure X
#87 display = 2Ph/Bell Fault #89
display = System Fault 10
#87 display = Line 1 Fault #89
display = System Fault 11
#87 display = Line 2 Fault #89
display = System Fault 12
#87 display = Bell Fault
#89 display = System Fault 13
#87 display = Aux. Output Fault
#89 display = System Fault 14
#87 display = Aux Power Fault
#87 display = Keypad Fault
The control has failed to communicate.
a) The dual phone line/bell supervision
module (DS7420i) is defective or the
wiring to the module is defective.
b) There is no DS7420i or a DS7420i has
been removed from the system.
There is a phone line fault on line 1.
There is a phone line fault on line 2.
The bell circuit on the DS7420i is open or
shorted.
The auxiliary circuit on the DS7420i is open
or shorted.
The auxiliary power output has been short-
ed.
a) The keypad wiring is defective.
b) A keypad is missing.
c) A keypad has been programmed, but is
not intended in this system.
a) An EEProm fault can be caused by disconnecting
power from the control while it is in program mode.
In this case, enter then exit program mode to clear.
b) Try to clear the error at the keypad by entering a
PIN then Reset.
c) Remove AC and battery power, then re-apply.
Remember that event history will be lost and time/
date will have to be re-set.
d) If error persists, return the panel to factory default
programming by setting program address 4058
to “01”. If the error clears, re-program the panel.
e) If error still persists, replace the panel.
Check history #89 to determine the source:
Report Failure 1 = Phone number 1
Report Failure 2 = Phone number 2
Report Failure 3 = Phone number 3 (remote
programmer)
Report Failure 4 = ARDIS Network
a) Check the wiring to the module.
b) Enter, then exit programming mode. This will re-
scan the options bus and clear the problem.
Check phone line 1 for proper operation.
Check phone line 2 for proper operation. If you wish
to monitor only one phone line, reprogram address
1520.
Check the bell circuit wiring. Be sure that the end-of-
line resistor is in place. If you don’t wish to use the
bell circuit, place an end-of-line resistor across the
bell terminals.
Check the auxiliary circuit wiring. Be sure that the
end-of-line resistor is in place. If you don’t wish to
use the auxiliary circuit, place an end-of-line resistor
across the auxiliary terminals. If you wish to use the
auxiliary circuit but do not wish to supervise it, cut
the auxiliary supervision jumper on the DS7420i.
Remove wiring from auxiliary power and check for
shorts.
a) Check keypad operation and wiring.
b) Install a keypad.
c) Remove from programming (0173-0180).