Det-Tronics R7404 - Typical System Applications

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TYPICAL SYSTEM APPLICATIONS
The following typical applications are examples only.
SeeFigures22,23and24.Forassistanceinadaptinga
systemtoyourindividualrequirements,contacttheField
Support Group at Detector Electronics.
The system illustrated in Figure 22 furnishes solid state
outputsignalsfromzones1to5,FireLogicAandB,and
the Alarm output. External Inhibit and External Accept
are shown connected for use in locations remote from
the controller. Other connections are not used in this
configuration.
External Inhibit/Reset (terminal 44) is a means of remotely
inhibiting the output circuits and resetting the controller.
External Accept (terminal 47) is a means of remotely
turning off the alarm output. These functions can be
performed by a computer interface, external switches, or
any interface that drives the input to less than 0.5 vdc.
Outputs Inhibited (terminal 45) is an output that is driven
low when the controller is in the Outputs Inhibited mode
(keylock switch in TEST or RESET position or External
Inhibit/Reset switch closed).
The system illustrated in Figure 23 furnishes solid state
output signals from zones 1 to 3, Fire Logic A and B,
and the Alarm output. External Inhibit and External
Accept are shown connected for use in locations remote
from the controller. Other connections are not used in
this configuration. In this illustration the detectors are
connected using a 3 wire shielded cable, with the shield
functioning as the C-lead.
NOTE
Wiring codes in many areas do not permit the
detectors to be wired using the method shown in
Figure 23. Therefore, this should be considered an
alternate method for use only where codes allow.
The system illustrated in Figure 24 furnishes solid state
outputsignalsfromzones1through8,FireLogicAand
B, and the Alarm output. External Accept and External
Inhibit are shown connected for use in locations remote
from the controller. Other connections are not used in this
configuration.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
+
– 
(A) +290 VDC
B - INPUT 1
B - INPUT 2
B - INPUT 3
B - INPUT 4
B - INPUT 5
B - INPUT 6
B - INPUT 7
B - INPUT 8
D1-1 o
i
DRIVER
D1-2 o
i
DRIVER
D1-3 o
i
DRIVER
D1-4 o
i
DRIVER
D1-5 o
i
DRIVER
D1-6 o
i
DRIVER
D1-7 o
i
DRIVER
D1-8 o
i
DRIVER
D2-1 o
i
DRIVER
D2-2 o
i
DRIVER
D2-3 o
i
DRIVER
D2-4 o
i
DRIVER
D2-5 o
i
DRIVER
D2-6 o
i
DRIVER
D2-7 o
i
DRIVER
D2-8 o
i
DRIVER
DMA OUT AVAILABLE
DMA OUT
DMA IN
DATA STROBE
DMA IN AVAILABLE
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
ZONE OUTPUT 1
ZONE OUTPUT 2
ZONE OUTPUT 3
ZONE OUTPUT 4
ZONE OUTPUT 5
ZONE OUTPUT 6
ZONE OUTPUT 7
ZONE OUTPUT 8
FIRE LOGIC “A”
FIRE LOGIC “B”
ALARM OUTPUT
EXTERNAL RESET/INHIBIT
OUTPUTS INHIBITED
FAULT OUTPUT
EXTERNAL ACCEPT
STATUS & DET. OUTPUT S1
STATUS & DET. OUTPUT S2
STATUS & DET. OUTPUT S3
STATUS & DET. OUTPUT S4
STATUS & DET. OUTPUT S5
STATUS & DET. OUTPUT S6
STATUS & DET. OUTPUT S7
STATUS & DET. OUTPUT S8
DATA BUS 0
DATA BUS 1
DATA BUS 2
DATA BUS 3
DATA BUS 4
DATA BUS 5
DATA BUS 6
DATA BUS 7
CHASSIS (EARTH) GND
A
B
C
D
C7050
ZONE 1
A
B
C
D
C7050
ZONE 2
A
B
C
D
C7050
ZONE 3
A
B
C
D
C7050
ZONE 4
A
B
C
D
C7050
ZONE 5
FIRE ALARM CONTROL CABINET
A
B
C
D
A
B
C
D
J1-3
J1-7
J1-2
J1-15
A
B
C
D
J1-3
J1-5
J1-2
J1-13
A
B
C
D
J1-3
J1-6
J1-2
J1-14
A
B
C
D
J1-3
J1-8
J1-2
J1-16
D0285
0.47 uf, 250 VDC
NON-POLARIZED
J2
R7404J1
10 TO 38 VDC
}

Figure 22—Typical System - Five Detectors in Five Zones