Field Wiring
14
Figure 11B: Main Fire Alarm Module Terminal Connections (cont’d)
When wiring devices, please keep in mind the following:
• All terminals are shown from the back of the main fire alarm board assembly (pointing towards the rear of the
enclosure).
• All power limited circuits must use type FPL, FPLR, or FPLP power limited cable.
• Initiating circuits are fully supervised and rated for 26 VDC, 3 ma standby, 1.5 vp-p ripple, 50 mA max. alarm.
They may be configured as required. The alarm threshold is 21 mA. Maximum loop resistance is 100 ohms, 50
ohms per side.
• Initiating circuits are compatibility ID “A”.
SUPERVISORY OR
WATERFLOW
SWITCH (NO)
HEAT DETECTOR
LEGEND:See Appendix A for compatible devices.
SMOKE DETECTOR
3.9K 1/2W ELR LISTED S5434
MODEL MP-300 MANUFACTURED
BY MIRCOM
PULL STATION
S
-
RS-485
1 TO 3 OF RAM-208 REMOTE ANNUNCIATORS
SEE RAM-208 OPERATION & INSTALLATION
MANUAL. (NOT USED WITH RTI)
24VDC POWER +
(POWER LIMITED) -
-
+
4-WIRE
SUPPLY
INI1+
INI1-
INI2+
INI2-
INI3+
INI3-
INI4+
INI4-
STYLE D
INI2
STYLE D
INI1
CLASS B /
STYLE B
WIRING
CLASS A /
STYLE D
WIRING
SUPERVISED INITIATING CIRCUIT #4
(SHOWN AS SUPV ZONE, POWER LIMITED)
SUPERVISED INITIATING CIRCUIT #3
(SHOWN AS ALARM ZONE, POWER LIMITED)
SUPERVISED INITIATING CIRCUIT #1
(POWER LIMITED)
RESETTABLE 4-WIRE
SMOKE DETECTOR POWER
LIMITED, POWER SUPPLY.
28 VDC, 100 mA MAX.,
1.5VP-P RIPPLE.
COM+
RTI REMOTE TROUBLE INDICATOR
(NOT USED WITH RAM-208'S)
TRB
RTI
INTERFACE
TRL
+
EXAMPLES OF BOTH CLASS AA@ AND AB@ WIRING ARE SHOWN, BUT
ONLY ONE CLASS OF WIRING MAY BE USED IN ANY INSTALLATION.
CLASS B /
STYLE B
WIRING
COM-
(SEE FIG.11)
BLU
RS-485 INTERFACE
(POWER LIMITED)
AUX. POWER POSITIVE
BLK
RED & WHT
RTI
