Operation
February 2011 4-12 P/N 06-237041-001
4-10.2.2 TROUBLE RESOUND
The internal buzzer will resound if one or more acknowledged trouble conditions are still active 24
hours after they were acknowledged. The display will show the following message:
Figure 4-22. 24-Hour Trouble Reminder Message
Press the <SYSTEM ACKNOWLEDGE> Key to silence the buzzer. The resound trouble signal will
also be automatically retransmitted to the supervising station. Retransmission is accomplished by
energizing the trouble relay for one minute and then de-energizing it.
4-10.2.3 HOW TO RESET THE CONTROL UNIT AFTER A TROUBLE CONDITION
Trouble conditions are non-latching, except for an open circuit in an SLC configured for CLASS-A
operation. There is no indication that a trouble event has cleared when multiple, acknowledged
troubles are present. The only indication will be that the trouble event as depicted in Figure 4-21 has
disappeared from the set of manually scrolled events and that the total number of troubles displayed
has decreased.
The system will automatically return to normal operations when all of the trouble events have cleared
if events were non-latching troubles.
Press the <SYSTEM RESET> pushbutton to return to normal operations after an open circuit in an
SLC configured for CLASS-A wiring has been repaired.
4-10.3 Alarm State
The Alarm State occurs when the FenwalNET 8000-ML receives an emergency signal from an alarm-
initiating device such as a smoke detector, a manual release station, or a waterflow switch.
The upper line of the LCD display shows the event by the device address, the change of state, and the
device type. The lower line indicates the up-to-40-character message assigned to the initiating device
using the FenwalNET 8000-ML Configuration Software.
Figure 4-23. Typical Alarm Message Display
The following actions also occur when any alarm condition is reported:
• The Alarm LED on the display flashes
• The internal buzzer sounds continuously
• The alarm event is stored in the event log
• The alarm message is transmitted to peripheral devices (such as Remote Display Control
Modules and Remote LED Annunciator Modules), if applicable
• The alarm message is communicated via the RS-232 port, as applicable.
• Point- or group-specific and general-alarm outputs will activate, including previously-silenced
outputs.
24-HOUR TROUBLE REMINDER
PRESS ACKNOWLEDGE TO SILENCE BUZZER
24-HOUR TROUBLE REMINDER
PRESS ACKNOWLEDGE TO SILENCE BUZZER
L1:001 ALARM ON PHOTO
COMPUTER ROOM
DISCHARGE-00 CNTDN-00 ABT-00 ALM-01
PREALM-00 AVCNTDN-00 SPV-000 TBL-000
SLC Loop
Number 1
Device Type Reporting Alarm
Device
Address 001
Device-Specific
Custom Message
Number of
Alarms
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