Document #51073 Rev. A 1/19/99 P/N 51073:A
51
Troubleshoot Mode
Battery
Pressing B followed by the [ENTER/STORE] key will display the battery voltage. Note that the battery voltage
display does not automatically update with a change in battery voltage. The [ENTER/STORE] key must be
pressed each time a display update is desired. Shown below are the critical battery threshold conditions:
Battery Voltage
Normal
Low Battery
No Battery
13.7 VDC
10.4 VDC
8.0 VDC
12 Volt Resettable Power
Pressing the Lamp Test switch will display the Resettable Power voltage.
Notification Appliance Circuit
Pressing 8 followed by the [ENTER/STORE] key will display the status of the Notification Appliance Circuit.
Listed below are the status display and corresponding nominal threshold voltages for the NAC measured across
B+ and B-:
NAC
Normal w/E.O.L.
Shorted
Open Circuit
status
voltage
-1.0V
0V
-5.5V
Where
= normal, = shorted and = open.
Telephone Line Testing
Pressing C for touchtone dialing or D for rotary dialing, followed by [ENTER/STORE] causes seizure of the
Primary phone line. After a delay of three seconds, the 411UDAC goes off-hook to acquire a dial tone.
The Programmer keypad may be used as a telephone touchpad for number dialing. Once the first digit is pressed, the
display will move the C or D character one position to the left, while placing the digit to be dialed on the farthest right
display position. Continue to press the phone numbers to be dialed. Successive depressions of the [ENTER/
STORE] key hangs up and picks up the phone (places the phone on or off the hook).
The secondary phone line may be tested by pressing the E key for touchtone dialing or the F key for rotary dialing
and then following the same procedure used for the primary phone line. A handset may be temporarily connected
across transformer T1 of the 411UDAC as indicated in Figure 3-3. The handset, when connected across T1, may be
used only as an amplifier/speaker or telephone with the keypad used for number dialing.
FIGURE 3-3:
Handset/Speaker Connection
Both Primary and Secondary Lines
411UD
A
B
D
.CDR
Содержание Fire-Watch 411UDAC
Страница 18: ...Mounting 18 Document 51073 Rev A 1 19 99 P N 51073 A FIGURE 2 3 411UDAC Backbox 411ACABB CDR ...
Страница 80: ...80 Document 51073 Rev A 1 19 99 P N 51073 A Notes ...
Страница 82: ...82 Document 51073 Rev A 1 19 99 P N 51073 A Notes ...
Страница 83: ...Document 51073 Rev A 1 19 99 P N 51073 A 83 Notes ...
