Operation Normal Operation
38 NCS Manual PN 51095:B1 3/08/02
Section 3 Operation
3.1 Normal Operation
During normal operation, when no fire alarms or troubles exist, the Graphic Interface window will
appear as shown below with an “All Systems Normal” message in top right-side of the window.
Figure 3.1 System Interface Window
The user can perform functions associated with the following buttons without having to enter a
password, these functions can be performed under the Action Menu or directly from the Interface
Window.
ACKNOWLEDGE - The Acknowledge button acknowledges events currently in the system.
Alarms are acknowledged individually, and troubles are acknowledged as a group (block
acknowledge). Receiving unit mode is not supported on the NCS and all nodes on the network
should be configured for block acknowledge.
SIGNAL SILENCE - The Signal Silence button silences all control modules in the system that are
programmed as silenceable. The System Interface Window will reflect that a signal silence is
requested.
RESET - The Reset button resets all fire panels for the particular system in which it was requested.
3.2 Troubles
When a trouble is received from a fire alarm panel it is reported to the NCS. The NCS will report
the trouble in three ways; the trouble icon in the banner will flash, the trouble will be reported in the
Events window, and it will show up in the Event Counters window. Refer to Figure 3.2.
"All
Systems
Normal"
message
ncssysnorm.jpg
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