FIGURE 3. INTERFACE TWO-WIRE CONVENTIONAL DETECTORS, NFPA CLASS B
(+)
(–)
(+)
(–)
(+)
(–)
+
–
+
–
LISTED BATTERY-BACKUP SWITCHED
REGUALTED DC POWER SUPPLY
POWER TO THE INTERFACE MODULE
MUST BE EXTERNALLY SWITCED TO
RESET THE DETECTORS. A NC-100R
RELAY CONTROL MODULE CAN BE USED
TO SWITCH POWER FROM A STANDARD
POWER SUPPLY - SEE FIGURE 5.
OPTIONAL BRANCH CIRCUIT
TO NEXT INTERFACE MODULE.
MODULE SUPERVISES
SUPPLY VOLTAGE AND
DETECTOR LOOP.
(+)
(–)
DO NOT MIX FIRE ALARM INITIAT-
ING, SUPERVISORY, OR SECURITY
DEVICES ON THE SAME MODULE.
TO NEXT
DEVICE
INTERFACE
MODULE
SIGNAL LINE CIRCUIT (SLC)
32 VDC MAX.
TWISTED PAIR
IS RECOMMENDED
CONNECT MODULES TO
LISTED COMPATIBLE
CONTROL PANELS ONLY.
FROM PANEL
OR PREVIOUS
DEVICE
3.9K EOL
RESISTOR
(INCLUDED
A2143-10)
DO NOT LOOP WIRE UNDER TERMINALS. BREAK ALL WIRE RUN TO PROVIDE SUPERVISION OF CONNECTIONS. DETECTORS MUST
BE UL LISTED COMPATIBLE WITH MODULE. INSTALL DETECTORS PER MANUFACTURER’S INSTALLATION INSTRUCTIONS.
*NOTE: ANY FAULT IN THE POWER SUPPLY IS LIMITED TO THAT
ZONE AND DOES NOT RESULT IN A FAULT IN A SEPARATE ZONE.
TERMINAL WIRING MUST BE
POWER LIMITED.
C0992-00
FIGURE 4. INTERFACE TWO-WIRE CONVENTIONAL DETECTORS, NFPA CLASS A
(+)
(–)
(+)
(–)
(+)
(–)
+
–
+
–
(+)
(–)
LISTED BATTERY-
BACKUP SWITCHED
REGUALTED DC
POWER SUPPLY
POWER TO THE INTERFACE
MODULE MUST BE EXTERNALLY
SWITCED TO RESET THE
DETECTORS. A NC-100R RELAY
CONTROL MODULE CAN BE
USED TO SWITCH POWER FROM
A STANDARD POWER
SUPPLY - SEE FIGURE 5.
OPTIONAL BRANCH CIRCUIT
TO NEXT INTERFACE MODULE.
MODULE SUPERVISES SUPPLY
VOLTAGE AND DETECTOR LOOP.
DO NOT MIX FIRE ALARM INITIATING,
SUPERVISORY, OR SECURITY
DEVICES ON THE SAME MODULE.
3.9K EOL RESISTOR REQUIRED
AT TERMINALS 8 & 9
(INCLUDED) A2143-10
DO NOT LOOP WIRE UNDER TERMINALS. BREAK ALL WIRE RUN TO PROVIDE SUPERVISION OF CONNECTIONS. DETECTORS
MUST BE UL LISTED COMPATIBLE WITH MODULE. INSTALL DETECTORS PER MANUFACTURER’S INSTALLATION INSTRUCTIONS.
INTERFACE
MODULE
TO NEXT
DEVICE
SIGNAL LINE CIRCUIT (SLC)
32 VDC MAX.
TWISTED PAIR
IS RECOMMENDED
CONNECT MODULES TO LISTED
COMPATIBLE CONTROL PANELS ONLY.
FROM PANEL
OR PREVIOUS
DEVICE
*NOTE: ANY FAULT IN THE POWER SUPPLY IS LIMITED TO THAT
ZONE AND DOES NOT RESULT IN A FAULT IN A SEPARATE ZONE.
TERMINAL WIRING MUST
BE POWER LIMITED.
C0991-00
FIGURE 5. RELAY CONTROL MODULE USED TO DISCONNECT A POWER SUPPLY*
(+)
(–)
(+)
(–)
(+)
(–)
(+)
(–)
(+)
(–)
SIGNAL LINE CIRCUIT (SLC)
32 VDC MAX.
TWISTED PAIR
IS RECOMMENDED
CONNECT MODULES TO LISTED
COMPATIBLE CONTROL PANELS ONLY.
FROM PANEL OR
PREVIOUS DEVICE
RELAY CONTROL
MODULE
TO NEXT
DEVICE
POWER LIMITED DC
POWER SUPPLY,
LISTED FOR FIRE
PROTECTION WITH
BATTERY BACKUP
*NOTE: ANY FAULT IN THE POWER SUPPLY IS LIMITED TO THAT
ZONE AND DOES NOT RESULT IN A FAULT IN A SEPARATE ZONE.
C0923-02
FIGURE 6. INTERFACE TWO-WIRE INTRINSICALLY SAFE CONVENTIONAL DETECTORS, NFPA CLASS B
(+)
(–)
(+)
(–)
(+)
(–)
LISTED BATTERY-BACKUP SWITCHED
REGUALTED DC POWER SUPPLY
POWER TO THE INTERFACE MODULE MUST BE
EXTERNALLY SWITCED TO RESET THE
DETECTORS. A NC-100R RELAY CONTROL
MODULE CAN BE USED TO SWITCH POWER FROM
A STANDARD POWER SUPPLY - SEE FIGURE 5.
OPTIONAL BRANCH CIRCUIT
TO NEXT INTERFACE MODULE.
MODULE SUPERVISES SUPPLY
VOLTAGE AND DETECTOR LOOP.
(+)
(–)
DO NOT MIX FIRE ALARM INITIATING,
SUPERVISORY, OR SECURITY
DEVICES ON THE SAME MODULE.
TO NEXT
DEVICE
INTERFACE
MODULE
SIGNAL LINE CIRCUIT (SLC)
32 VDC MAX.
TWISTED PAIR
IS RECOMMENDED
CONNECT MODULES TO LISTED
COMPATIBLE CONTROL PANELS ONLY.
FROM PANEL
OR PREVIOUS
DEVICE
3.9K EOL
RESISTOR
(INCLUDED
A2143-10)
DO NOT LOOP WIRE UNDER TERMINALS. BREAK ALL WIRE RUN TO PROVIDE SUPERVISION OF CONNECTIONS. DETECTORS MUST
BE UL LISTED COMPATIBLE WITH MODULE. INSTALL DETECTORS PER MANUFACTURER’S INSTALLATION INSTRUCTIONS.
*NOTE: ANY FAULT IN THE POWER SUPPLY
IS LIMITED TO THAT ZONE AND DOES NOT
RESULT IN A FAULT IN A SEPARATE ZONE.
+
–
+
–
TERMINAL WIRING MUST
BE POWER LIMITED.
MTL3043
ISOLATOR
C0993-00
2
I56-3505-003
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