Class "B" Operation - Wheelock POWERPATH PS-12/24-8CP Installation Instructions Manual

3.3 CLASS "B" OPERATION

Class "B" outputs can be controlled from either IN1 or IN2. Switch SW9 position 1 & 2 on the board are in
the "OFF" position.
The following are examples of Class "B" connections. A FACP is used as a representative input.
•
IN1 and/or IN2 can be used for connection to the FACP. The INPUT SELECT Switch (1) selects which
input is to be used to activate the output.
•
Board switch SW9 position 1 & 2 control Class "A" or Class "B" configuration. SW9 position 1 controls
Outputs 1 and 3. SW9 position 2 controls Outputs 2 and 4.
•
The PS-12/24-8MP requires a 2.2K Ohm End of Line Resistor (EOLR) on each output for proper
supervision.
Example 1: NORMAL MODE (CLASS B)
F
A
C
P
Example 2: TEMPORAL MODE (CLASS B)
F
A
C
P
CAUTION: Strobes require constant voltage and will not operate properly in the TEMPORAL MODE. A second
output set in the NORMAL MODE will provide the constant voltage.
CAUTION: Only use audible appliances that can use a coded signal. Do not use with Wheelock Series AS/AH,
NS/NH or HS4/HS appliances.
P84515 E
IN>OUT SYNC
WHEELOCK SYNC
TEMPORAL
+
INPUT SELECT
IN1
ON
-
TO NEXT APPLIANCE
+
OR EOLR
RET1
-
POWERPATH
SW9
LEGEND
STROBE
+
IN1
-
ON
TO NEXT APPLIANCE
+
OR EOLR
RET1
-
ON
POWERPATH
SW9
+
OUT1-4
OUT1
-
+
OUT2
-
+
OUT3
-
+
OUT4
-
+
OUT1
OUT1
IN>OUT SYNC
WHEELOCK SYNC
TEMPORAL
-
INPUT SELECT
OUT2-4
IN>OUT SYNC
+
WHEELOCK SYNC
TEMPORAL
OUT2
INPUT SELECT
-
EOLR
+
OUT3
2.2K OHMS
-
EOLR
+
OUT4
2.2K OHMS
-
TO NEXT APPLIANCE
OR EOLR
(2.2K OHMS)
TO NEXT APPLIANCE
OR EOLR
(2.2K OHMS)
TO NEXT APPLIANCE
OR EOLR
(2.2K OHMS)
TO NEXT APPLIANCE
OR EOLR
(2.2K OHMS)
AUDIBLE
TO NEXT APPLIANCE
OR EOLR
(2.2K OHMS)
TO NEXT APPLIANCE
OR EOLR
(2.2K OHMS)
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