figure 3. typical 2-Wire initiating circuit configuration, nfpa Style B or Security SyStemS:
NOTE: For UL Listed security installations, the SK-Monitor must be mounted within the control panel enclosure.
(+)
(–)
(+)
(–)
(+)
(–)
MONITOR
MODULE
ANY NUMBER OF UL LISTED CONTACT
CLOSURE DEVICES MAY BE USED. DO NOT MIX
FIRE ALARM INTIATING, SUPERVISORY, OR
SECURITY DEVICES ON THE SAME MODULE.
TO NEXT
DEVICE
FROM PANEL OR
PREVIOUS DEVICE
47K EOL
RESISTOR
ELR-47K
CONNECT MODULES TO LISTED COMPATIBLE
CONTROL PANELS ONLY
SIGNAL LINE CIRCUIT (SLC)
32 VDC MAX.
TWISTED PAIR
IS RECOMENDED
ALL WIRING SHOWN IS SUPERVISED AND POWER LIMITED
INITIATING DEVICE CIRCUIT (IDC) - NFPA STYLE B
POWER LIMITED: 450µA MAX. @ 11 VDC MAX
INSTALL CONTACT CLOSURE DEVICES PER
MANUFACTURER’S INSTALLATION INSTRUCTIONS.
C0918-00
figure 4. typical 4-Wire fault tolerant initiating circuit configuration, nfpa Style D:
(+)
(-)
(+)
(–)
(+)
(–)
TO NEXT
DEVICE
ANY NUMBER OF UL LISTED CONTACT
CLOSURE DEVICES MAY BE USED. DO NOT MIX
FIRE ALARM INTIATING, SUPERVISORY, OR
SECURITY DEVICES ON THE SAME MODULE.
MONITOR
MODULE
FROM PANEL OR
PREVIOUS DEVICE
CONNECT MODULES TO LISTED COMPATIBLE
CONTROL PANELS ONLY
SIGNAL LINE CIRCUIT (SLC)
32 VDC MAX.
TWISTED PAIR
IS RECOMENDED
ALL WIRING SHOWN IS SUPERVISED AND POWER LIMITED
INSTALL CONTACT CLOSURE DEVICES PER
MANUFACTURER’S INSTALLATION INSTRUCTIONS.
EOL RESISTOR IS
INTERNAL AT
TERMINALS 8 & 9
C0919-00
SK-460-013
2
I56-3442-000
©2009 Silent Knight