D500-74-00 3 I56-2463-008
FIGURE 2. TYPICAL CLASS B, STYLE Y NAC CONFIGURATION:
TO NEXT
DEVICE
FROM PANEL OR
PREVIOUS DEVICE
SIGNAL LINE CIRCUIT (SLC)
30 VDC MAX.
TWISTED PAIR RECOMMENDED
(–)
(+)
(–)
(+)
EOL
RESISTOR
UL LISTED
EOL RELAY
SHOWN
ENERGIZED
24 VDC COIL
A77-716B OR
EQUIVALENT
REQUIRED FOR PANELS
WITHOUT POWER SUPPLY
MONITORING
FROM TERMINALS
7 AND 8 OF LAST
CONTROL MODULE
ON BRANCH
MODULE POLARITIES ARE
SHOWN IN ALARM
14
13
12
11
10
9
8
7
24 VDC
POWER
SUPPLY
TO NEXT CONTROL MODULE
TERMINALS 10 (+) AND 9 (–)
OR END OF LINE RELAY
(IF REQUIRED)
–
+
1
2
3
4
–
+
24 VDC POWER SUPPLY
ISOLATED, REGULATED,
POWER LIMITED PER NFPA 70
LISTED FOR FIRE PROTECTION
WITH BATTERY BACK-UP
ALL WIRING SHOWN IS SUPERVISED AND POWER LIMITED
(–)
(+)
(–)
(+)
(–)
(+)
(–)
(+)
FIGURE 3. TYPICAL CLASS A, STYLE Z NAC CONFIGURATION:
TO NEXT
DEVICE
FROM PANEL OR
PREVIOUS DEVICE
SIGNAL LINE CIRCUIT (SLC)
30 VDC MAX.
TWISTED PAIR RECOMMENDED
(–)
(+)
(–)
(+)
EOL RESISTOR
IS INTERNAL
AT TERMINALS
13 & 14
UL LISTED
EOL RELAY
SHOWN
ENERGIZED
24 VDC COIL
A77-716B OR
EQUIVALENT
REQUIRED FOR PANELS
WITHOUT POWER SUPPLY
MONITORING
FROM TERMINALS
7 AND 8 OF LAST
CONTROL MODULE
ON BRANCH
MODULE POLARITIES ARE SHOWN IN ALARM
14
13
12
11
10
9
8
7
24 VDC
POWER
SUPPLY
TO NEXT CONTROL MODULE
TERMINALS 10 (+) AND 9 (–)
OR END OF LINE RELAY
(IF REQUIRED)
–
+
1
2
3
4
–
+
24 VDC POWER SUPPLY
ISOLATED, REGULATED,
POWER LIMITED PER NFPA 70
LISTED FOR FIRE PROTECTION
WITH BATTERY BACK-UP
ALL WIRING SHOWN IS SUPERVISED AND POWER LIMITED
(–)
(+)
(–)
(+)
(–)
(+)
(–)
(+)
C0107-04
C0937-00
