System overview and operation
FireShield Technical Reference Manual 1.5
Disabling an IDC
Pressing an IDC Disable button prevents the panel from
responding to any status change from that IDC. When you
disable an IDC:
• The common Disable LED double-flashes
• The IDC Trouble LED double-flashes
• The common Trouble LED lights and the panel goes into
a trouble state
• The common trouble relay changes state
Resetting the panel has no effect on a disabled IDC, but
removing all power from the panel clears the disable and
enables the IDC.
Note: During an alarm condition, all flashing LEDs go steady.
To disable an IDC:
1. Press the Disable button for the IDC that you want to
disable.
Disabling a NAC
When you disable an NAC:
• The common Disable LED double-flashes
• The NAC Trouble LED double-flashes
• The common Trouble LED lights and the panel goes into
a trouble state
• The common trouble relay changes state
Resetting the panel has no effect on a disabled NAC, but
removing all power from the panel clears the disable and
enables the NAC.
To disable a NAC:
1. Press the Disable button for the NAC that you want to
disable.
Re-enabling an IDC or NAC
You can re-enable a disabled IDC or NAC. When you re-
enable an IDC or NAC:
• The common Disable LED turns off
• The IDC or NAC trouble LED turns off
• The common Trouble LED turns off and the panel returns
to normal
• The IDC or NAC LEDs are updated to show current
status (e.g. if the IDC or NAC is in trouble, the Trouble
LED lights). After enabling an IDC, alarms from that IDC
are inhibited for 30 seconds. During this time the IDC can
be disabled to avoid an unwanted alarm.
To re-enable an IDC or NAC:
1. Press the Disable button for the IDC or NAC you want to
re-enable.
Using the drill command
You can use the drill command to activate all of the
notification appliance circuits. Pressing Drill activates all
audibles and visuals according to the panel programming, but
does not activate the Alarm relay. The FSDACT can be
programmed to transmit a drill condition, but it will never
report the drill as an alarm. Drill will not operate with an
active alarm or supervisory event at the panel.
To perform a fire drill:
1. Press and hold the Signal Silence & Drill button for one
second.
2. To stop the drill, press and hold the Signal Silence & Drill
button for one second.
Using the walk test command
A walk test lets you test IDC zones without having to create
an actual alarm condition. You can conduct a walk test in
silent or audible mode. In silent mode the audible devices
(NACs) do not sound. Walk test will not operate with an
active alarm or supervisory event at the panel.
Zones should be placed in walk test one at a time. This allows
the balance of the system to remain in service.
In a walk test, the panel responds to the first signal it receives
and ignores all others on that IDC until it clears that signal or
the panel is reset. The input must be restored to the normal
state before the next input is tested. When the input is restored,
the panel automatically resets the circuit being tested. The
automatic reset takes eight seconds. After the circuit is reset
the next device can be tested.
The panel terminates the walk test if any of the following
occur:
• The panel enters an alarm or supervisory state
• There are 30 minutes of inactivity on the zone being
tested
• The panel is reset
• Walk Test is pressed
When you press Walk Test:
• The Walk Test LED flashes for an audible walk test and
is steady for a silent walk test
• The panel enters a trouble state. There is no fire
protection for the IDC in walk test. If an unselected IDC
goes into alarm or trouble, all programmed outputs
operate as programmed.
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