Honeywell MS-2 Benutzerhandbuch

Program Options via DIP Switch

MS-2/MS-4   PN 51512:E  01/18/05

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3.1.2.1   IDC1 Verification (MS-4 only)
Switch 1 only on the MS-4, placed in the ON position, selects the Verification 
feature for IDC (Initiating Device Circuit) #1.  When Verification is selected the 
following events will occur when a smoke detector activates:

1. FACP removes power from all zones for 6 seconds, resetting all smoke detectors

2. Power is reapplied and a 12 second retard period begins, allowing detectors to 

stabilize

3. During the 18 second reset/retard periods of steps 1 & 2, subsequent alarms by 

the same zone are ignored

4. Alarms detected on any other zone during the retard period will cause the FACP 

to immediately process the alarm

5. A 60 second confirmation period follows the reset/retard period.  If an alarm 

occurs during the confirmation period, on the zone which initiated verification, 
the FACP will immediately process the alarm.  If no alarm is detected during this 
confirmation period, the FACP returns to normal condition 

The factory default setting is switch 1 OFF for no IDC1 Verification.

3.1.2.2  IDC1 Supervisory (MS-4 only)
Switch 2 only on the MS-4, placed in the ON position, programs IDC #1 as a 
Supervisory circuit.  A supervisory zone can be used for monitoring supervisory 
devices such as sprinkler tamper switches.  A supervisory activation will pulse the 
piezo sounder at a ˝ second rate and flash the zone supervisory LED at the same 
rate.  The factory default setting is switch 2 OFF for no IDC1 Supervisory.

3.1.2.3  IDC1 Verification for MS-2 or IDC2 Verification for MS-4
Switch 3, placed in the ON position, selects the Verification feature for IDC #1 on 
the MS-2 or IDC #2 on the MS-4.  The factory default setting is switch 3 OFF for no 
Verification.  Refer to IDC1 Verification (MS-4 only) for a description of this 
feature.

3.1.2.4  IDC1 Supervisory for MS-2 or IDC2 Supervisory for MS-4
Switch 4, placed in the ON position, programs IDC #1 on the MS-2 or IDC #2 on 
the MS-4 as a Supervisory circuit.  A supervisory zone can be used for monitoring 
supervisory devices such as sprinkler tamper switches.  A supervisory activation 
will pulse the piezo sounder at a ˝ second rate and flash the zone supervisory LED at 
the same rate.  The factory default setting is switch 2 OFF for no Supervisory.

78 sec.

18 sec.

0 sec.

CONFIRMATION

RETARD

Alarm Ignored

Control Panel Processes Alarm if Same Detector is Still in Alarm

Control Panel Immediately Processes Alarm

Detector Alarm Verification 
(Reset/Retard + Confirmation)

Detector Goes Into Alarm

Detector Alarms on Different 
Zone During First Detector's 
Verification Period

6 sec.

RESET