70
7.6.5 PR-300 Polarity Reversal and City Tie Module Wiring
Wire the PR-300 Polarity Reversal and City Tie Module successfully as shown in Figure 25.
• Plug PR-300 ribbon cable P1 into connector P8 on the Main Fire Alarm Board.
• Remove jumper plug from JW7 on the Main Fire Alarm Board.
• Power Limited cable type FPL, FPLR or FPLP must be used.
• For USA installation, the installer must use Atlantic Scientific (Tel: 407-725-8000), Model
#24544 Protective Device, or similar UL-Listed QVRG secondary protector, as shown.
• For installations in Canada, the Protective Device is not required but still recommended.
Figure 25 Wiring the PR-300 Polarity Reversal and City Tie Module
1
2
s
1
2
s
1
2
s
1
2
s
CITY TIE LOCAL ENERGY
RATED - 24VDC FILTERED
TRIP COIL - 13.7 and 14.4 Ohms,
270mA, 5mV RIPPLE
PROTECTOR
UNPROTECTED
PROTECTED
POLARITY REVERSAL ALARM
24VDC OPEN
12VDC AT 3.5mA
8mA MAX. SHORT
POWER LIMITED
POWER LIMITED
+
-
+
-
+
-
POLARITY REVERSAL SUPV.
24VDC OPEN
12VDC AT 3.5mA
8mA MAX. SHORT
POWER LIMITED
+
-
USE A SHORTING WIRE
WHEN THE CITY TIE IS
NOT USED
DIN RAIL CONNECTION
TO EARTH GROUND
+
-
1
2
s
1
2
s
1
2
s
1
2
s
PROTECTOR
UNPROTECTED
PROTECTED
+
-
DIN RAIL CONNECTION
TO EARTH GROUND
CONFIRMS TO NEMA STANDARD SB3-1969
INTENDED FOR CONNECTION TO POL
REVERSAL CIRCUIT OF A REMOTE
STATION RECEIVING UNIT HAVING
COMPATIBLE RATINGS
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