Fire-Lite 411UDAC Fire Alarm Communicator - Manual (Page 52)

52 411UDAC Manual — P/N 51073:E 9/20/2013
Modes of Operation Troubleshoot Mode
If an incorrect key is entered, reenter the proper 4-digit code before pressing the
[ENTER/STORE] key. Within five seconds, repeat this entry by again pressing the MODE key
followed by the 4-digit code 3337 and pressing the [ENTER/STORE] key. The display will read
LinP. Enter your 4-digit password. When reprogramming is complete, the real time clock will dis-
play.
3.6 Troubleshoot Mode
In this mode, system status may be displayed on the 4-character display of the PRO-411. An inter-
nal voltmeter measures the voltage present at the channel/inputs, AC power input, and Notification
Appliance Circuit. A lack of keyboard activity for a period of 20 minutes will cause the panel to
return to Normal Mode.
To access the Troubleshoot Mode, press the MODE key followed by the digits 8768 and then the
[ENTER/STORE] key.
8768 spells TROU on a Touch-Tone
®
phone.
Once in this mode, the 411UDAC will continue to communicate any events not yet acknowledged
at a central station prior to entering Troubleshoot Mode. The UP arrow and DOWN arrow keys do
not function in this mode.
All status displays in Troubleshoot Mode are shown in real-time, which means the display will
update automatically as the status changes.
Channel/Inputs
Pressing 1 through 4 followed by the [ENTER/STORE] key on the PRO-411 displays the input
status of the selected channel. Listed below are the status display and corresponding nominal
threshold voltages, as measured across B+ and B-, for each zone:
AC Line
Pressing A followed by the [ENTER/STORE] key will display the AC input voltage as shown
below. The following lists the AC line voltage range. The AC Power LED will turn off and the
trouble LED will turn on when the AC line voltage drops below the Low Line threshold.
Notification Appliance Circuit
Pressing 8 followed by the [ENTER/STORE] key will display the status of the Notification Appli-
ance Circuit. Listed below are the status display and corresponding nominal threshold voltages for
the NAC measured across B+ and B-:
Channel # Normal with ELR Shorted Open Circuit
1 through 4 (status) n A F
1 and 3 (voltage) 11.5V 0V 12.0V
2 and 4 (voltage) 5.0V 0V 12.0V
Where n = normal, A = active, and F = fault (or open)
AC Line Voltage Low Line Normal High Line
102 VAC 115 VAC 132 VAC
NAC Normal with ELR Shorted Open Circuit
status n S O
voltage -1.0V 0V -5.5V
Where n = normal, S = shorted, and O = open