Owner's manual
— Lower display indicates a “1.” (If any other num-
ber appears, refer to the “Troubleshooting” sec-
tion of this manual.)
2. Push and hold the TEST/ACCEPT button.
— A ZONE OUTPUT LED flashes to indicate the
zone of the detector being tested.
— Upper left display goes blank.
— Lower display changes to “6” to indicate that the
fire threshold has been exceeded due to the radi-
ation received from the UV source in the detector.
(See Table 1 for System Status Codes.)
3. Release the TEST/ACCEPT button.
— The ZONE OUTPUT LED remains on steady.
— The upper left display again shows the detector
being checked. The lower display changes back
to a “1.”
4. Push the SELECT button. The controller sequences
to the next lower numbered zone.
NOTE
The
o
i
test will check the detectors connected to
the No. 2 position of each zone first. The upper dis-
play will indicate 2-8, 2-7, etc., and then cycle to 1-
8, 1-7, etc., until all (switch selected) detectors are
checked.
5. Repeat the test until all detectors have been
checked.
6. Return the system to the normal operating mode
after the test is complete.
NOTE
The Automatic
o
i
system continuously monitors the
operation of the R7404 but does not monitor exter-
nal relays or equipment that may be operated from
the fire signal output, the alarm signal output, or the
fault signal output. It is important that the system
be manually checked using the NORMAL mode
checkout procedure on a regular basis. The whole
system (including external equipment) should be
checked periodically using a UV Test Lamp to sim-
ulate a fire.
19 95-8242
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 3
A
B
C
D
C7050
ZONE 4
A
B
C
D
C7050
ZONE 5
A
B
C
D
C7050
ZONE 6
FIRE ALARM CONTROL CABINET
B0873
0.47 uf, 250 VDC
NON-POLARIZED
J2
R7404J1
10 TO 38 VDC
}
A
B
C
D
C7050
ZONE 2
A
B
C
D
C7050
ZONE 7
A
B
C
D
C7050
ZONE 8
A
B
C
D
A
B
C
D
C7050
ZONE 1
A
B
C
D
C7050
ZONE 3
A
B
C
D
C7050
ZONE 4
A
B
C
D
C7050
ZONE 5
A
B
C
D
C7050
ZONE 6
A
B
C
D
C7050
ZONE 2
A
B
C
D
C7050
ZONE 7
A
B
C
D
C7050
ZONE 8
A
B
C
D
J1-3
J1-5
J1-2
J1-13
A
B
C
D
J1-3
J1-4
J1-2
J1-20
A
B
C
D
J1-3
J1-5
J1-2
J1-21
A
B
C
D
J1-3
J1-6
J1-2
J1-14
A
B
C
D
J1-3
J1-6
J1-2
J1-22
A
B
C
D
J1-3
J1-7
J1-2
J1-15
A
B
C
D
J1-3
J1-7
J1-2
J1-23
A
B
C
D
J1-3
J1-8
J1-2
J1-16
A
B
C
D
J1-3
J1-8
J1-2
J1-24
A
B
C
D
J1-3
J1-9
J1-2
J1-17
A
B
C
D
J1-3
J1-9
J1-2
J1-25
A
B
C
D
J1-3
J1-10
J1-2
J1-18
A
B
C
D
J1-3
J1-10
J1-2
J1-26
A
B
C
D
J1-3
J1-11
J1-2
J1-19
A
B
C
D
J1-3
J1-11
J1-2
J1-27
Figure 24—A Typical System – 16 Detectors in 8 Zones