10
When the panel is in an on battery condition, the front
panel visual trouble indicator on the internal trouble buzzer
(Items 2 and 3 above) operate in a pulsing manner with
two short On periods followed by a longer Off period. An
additional system trouble is indicated by four short On
periods followed by a longer Off period. In both these in-
stances, the trouble relay contacts (Item 3 above) remain
in a steady change of state condition.
A system trouble may result from any of the following fault
conditions:
1. On battery condition as described above.
2. Battery fault.
a. High or low battery voltage condition.
b. Disconnected or open battery lines (includes an
open or battery fuse F1, rated 5 amps).
3. Ground fault condition of any external wiring.
Panel ground fault condition may be alleviated by
temporary removal of ground fault connection plug P3.
4. Abort station fault.
TB1, terminals 7 and 8, open circuit.
5. Manual discharge station.
TB1, terminals 5 and 6, open circuit or not terminated
with 5.6K ohm resistor.
6.
With Class B wiring:
Zone 1 and/or Zone 2 initiating
circuits.
TB1, between terminals 1 and 4 or between terminals
5 and 8 open circuited, or not terminated with a 1.78K
ohm resistor.
With Class A wiring:
Zone 1 and/or Zone 2 initiating
circuits.
TB1, between terminals 2 and 3 or between terminals
6 and 7 open circuited, or not terminated with a 1.78K
ohm resistor.
Wiring resistance between terminals 1 and 2, 3 and 4,
5 and 6, or 7 and 8 exceeds acceptable limits (Refer
to
CONNECTION DIAGRAM
on pages 4-5).
7. General alarm audible alarm circuit.
TB2, terminals 1 and 2, open circuited or not termi-
nated with a 5.6K ohm resistor.
NOTE:
A trouble condition may result from a low line resis-
tance value as well as from a high line value.
8. Predischarge/discharge audible alarm circuit.
TB2, terminals 3 and 4 open circuited or not termi-
nated with 5.6K ohm resistor. (See Item 7 above.)
9. Agent release (discharge devices) circuit.
Terminals 5 and 6, open circuit condition.
10. Cylinder pressure circuit.
TB1, terminals 13 and 14, open circuit or line not ter-
minated with 2.2K ohm resistor.
11. System Reset switch S1 not in normal closed position.
12.
RELEASE DISCONNECT
switch in off-normal (down)
position.
Each of the above circuits, except Item 11, has its own
individual trouble indicating light located at various points
on the panel PC boards. A system Supervisory will result if
there is a short circuit condition (cylinder pressure) on TB1,
terminals 13 and 14.
Recommended Spare Parts
P/N 315-093523-7
Fuse
Rating
Part No.
F1
5A
105-210734
F2
F3
2A
105-210758
F4
3A
105-215996
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