
System Operation
151430
10-17
10.7.2 Double Interlock Zone Releasing
A Double Interlock Zone uses a minimum of two Addressable detectors, a designated manual
release switch, and an interlock switch input. An interlock switch is typically a dry-contact
pressure switch and will be referred to as an interlock/pressure switch in this document.
Conditions Required for a Pre-Alert Output Activation
If any single addressable detector is activated, the “Pre-Alert” output will activate. This alerts
the user that the initial stages required for a release condition are present. (Also refer to Table
10-3.)
Conditions Required for a General Alarm Output Activation
If two addressable detectors, a manual release switch is activated, or an interlock switch is
active, the "Pre-Alert", and "General Alarm" outputs will activate.
Conditions Required for a Release Output Activation
Any release requires the activation of an interlock switch, and either a manual release switch
or 2 activated addressable detectors. When these conditions are met, the “Release” and
“General Alarm” outputs will activate, and the “Alert” outputs will deactivate.
Table 10-4 Double Interlock Zone Operation
Important!
Only addressable detectors can be used. No conventional detectors can be used.
Each Single Interlock Zone input requires at least one manual release switch.
Each Double Interlock Zone input requires at least one Interlock/pressure switch
Inputs
Output Results
1st Addressable Detector
4
4
4
2nd Addressable Detector
4
4
4
Manual Release Station
4
4
4
4
Interlock/Pressure Switch
4
4
4
4
4
Nor
mal
Pr
e-Alert
Pr
e-Alert
Pre-Alert an
d Ge
ne
ral
A
lar
m
Pre-Alert an
d Ge
ne
ral
A
lar
m
Pre-Alert an
d Ge
ne
ral
A
lar
m
Pre-Alert an
d Ge
ne
ral
A
lar
m
Pre-Alert an
d Ge
ne
ral
A
lar
m
Pre-Alert an
d Ge
ne
ral
A
lar
m
Pre-Alert an
d Ge
ne
ral
A
lar
m
Pre-Alert an
d Ge
ne
ral
A
lar
m
Relea
se an
d Ge
ner
a
l
Alar
m
Relea
se an
d Ge
ner
a
l
Alar
m
Relea
se an
d Ge
ner
a
l
Alar
m
Relea
se an
d Ge
ner
a
l
Alar
m
Relea
se an
d Ge
ner
a
l
Alar
m
firealarmresources.com
Summary of Contents for Silent Knight IFP-2000 Module 3
Page 2: ...firealarmresources com ...
Page 12: ...IFP 2000 Installation Manual viii firealarmresources com ...
Page 22: ...IFP 2000 Installation Manual 1 10 151430 firealarmresources com ...
Page 26: ...IFP 2000 Installation Manual 2 4 151430 firealarmresources com ...
Page 31: ...Before You Begin Installing 151430 3 5 Figure 3 1 Wire Routing Example firealarmresources com ...
Page 100: ...IFP 2000 Installation Manual 5 14 151430 firealarmresources com ...
Page 194: ...IFP 2000 Installation Manual 10 20 151430 firealarmresources com ...
Page 210: ...IFP 2000 Installation Manual 12 8 151430 firealarmresources com ...
Page 230: ...IFP 2000 Installation Manual A 14 firealarmresources com ...
Page 232: ...IFP 2000 Installation Manual B 2 151430 firealarmresources com ...
Page 236: ...firealarmresources com ...
Page 237: ...firealarmresources com ...