Fire-Lite 411UDAC Fire Alarm Communicator - Manual (Page 30)

30 411UDAC Manual — P/N 51073:E 9/20/2013
Section 3: Modes of Operation
The 411UDAC has five operational modes:
• Normal Mode
• Real Time Clock Mode
• Program Mode (requires password)
• Troubleshoot Mode
• Default Mode (requires password)
The operational mode for the 411UDAC is Normal Mode. The operator is able to switch between
any modes of operation provided no alarm events are active in the system. It should be noted that
the unit will not respond to input activations while in any mode except Normal Mode.
Some modes require a password. Refer to Section 3.2.
Access to any other Mode requires connection of the PRO-411 DACT Programmer which consists
of a keypad and display. Figure 3.1, “Programmer Keypad” on page 31.
Note that if the 411UDAC is configured to operate as a Slave Communicator, it will attempt to
transmit all panel status to a Central Station. If set to operate in the Test Communicator configura-
tion, the 411UDAC will function as a local slave panel only without transmitting panel status to a
Central Station.
3.1 Normal Mode
Normal Mode is the standard (default) mode of operation for the 411UDAC. The unit continuously
monitors the status of the four input channels as well as the status of the onboard digital communi-
cator. If no activity is detected on the four input channels (no shorts or opens) and the 411UDAC is
operating free of internal troubles, the unit will display the following conditions:
 All LEDs are off except the AC Power LED
 NAC output is off
 Onboard piezo sounder is off
 The relays are in their normal deactivated state
 Communicator is not transmitting to the Central Station
The 411UDAC transmits system status reports to a central station, if programmed to do so, via the
public switched telephone network. Two supervised telephone line connections are made to inter-
face the digital communicator to the telephone lines. Both telephone lines are supervised by the
411UDAC for proper voltage.
The 411UDAC is capable of line seizure on both the primary and secondary telephone line inter-
faces. Any time the digital communicator detects the necessity to call the Central Station, line sei-
zure will disconnect any local premises phones sharing the same telephone line. Sharing of phone
lines, for fire systems, must be approved by the Local Authority Having Jurisdiction. All transmis-
sions to the Central Station will be sent over the Primary phone line. In the event of a noisy or
faulty phone line, transmissions will be sent over the backup Secondary phone line.
Transmission options exist to:
• send reports to the secondary phone number as backup only
• send reports to both the primary and secondary phone numbers
• send reports to the first available central station phone number
If 10 total attempts to communicate are unsuccessful, the 411UDAC will turn on the Communica-
tion Fail LED.