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Program Options via DIP Switch DIP Switch Settings
34 MS-2/MS-4 PN 51512:E 01/18/05
3.1.1 SW1 DIP Switch Settings
3.1.1.1 Silence Inhibit
Switch 1, placed in the ON position, selects the Silence Inhibit feature. This feature
prevents the silencing or resetting of the NACs (Notification Appliance Circuits) for
a period of one minute after initiation of an alarm. Placing switch 1 to the OFF
position deselects the Silence Inhibit feature. The factory default setting is switch 1
OFF for no Silence Inhibit.
3.1.1.2 Auto-silence
Switch 2, placed in the ON position, selects the Auto-silence feature. This feature
automatically silences all NACs, programmed for silenceable operation, ten
minutes after alarm activation. A new activation on another zone will resound the
NACs. The factory default setting is switch 2 OFF for no Auto-silence.
3.1.1.3 Temporal Coding
Switch 3, placed in the ON position, selects the Temporal Coding feature. This
feature causes the NACs to pulse,
½ second on, ½ second off, ½ second on, ½
second off,
½ second on, 1½ seconds off, continually repeating this pattern while
activated. The factory default setting is switch 3 OFF for no Temporal Coding,
which will cause the NACs to sound a steady signal when activated.
Note that Temporal Coding is disabled if Strobe Synchronization is enabled.
3.1.1.4 Selective Silence
Switch 4, placed in the ON position, selects the Selective Silence feature. This
feature allows the use of various manufacturer’s horn strobe mute protocols. When
Selective Silence is enabled and the Synchronization feature is selected (refer to
"Strobe Synchronization" on page 37), pressing the Silence button will turn off all
silenceable audible devices while leaving on the visual devices, such as strobes.
The factory default setting is switch 4 OFF for no Selective Silence.
Note: Enabling Selective Silence but not Synchronization will cause audible and
visual devices to be turned off when the Silence button is pressed.
3.1.1.5 Trouble Reminder
Switch 5, placed in the ON position, selects the Trouble Reminder feature. This
feature causes the FACP piezo to sound every 15 seconds for alarms and every two
minutes for troubles after the alarms or troubles have been silenced. In addition, the
piezo will resound 24 hours after a trouble has been silenced but not cleared. The
factory default setting is switch 5 OFF for Trouble Reminder disabled.
3.1.1.6 AC Trouble Delay
Switch 6, placed in the ON position, selects the AC Trouble Delay feature. This
feature allows the FACP to delay trouble activation for six hours following an AC
loss or brownout condition. The factory default setting is switch 6 OFF for no AC
Trouble Delay.
3.1.1.7 Autoresettable Supervisory
Switch 7, placed in the ON position, selects the Autoresettable Supervisory feature.
This feature causes the IDCs (Initiating Device Circuits), programmed as
supervisory circuits, to automatically reset (nonlatching) after the alarm condition
has been cleared. The factory default setting is switch 7 OFF for no Autoresettable
Supervisory.
3.1.1.8 IDC Combination Circuit
Switch 8, placed in the ON position, sets IDC #1 on the MS-2 or IDC #2 on the
MS-4 as a combination circuit. A combination zone can be used for monitoring
supervisory devices such as valve tamper switches and alarm devices such as
waterflow switches. Supervisory conditions, which latch via software, can be
silenced by pressing the Acknowledge and then Silence buttons. The factory
default setting is switch 8 OFF for no Combination circuit.