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Pg. 5
3
WIRING DIAGRAMS
+
-
PS-
1225UL
3e. SINGLE MASTER SYSTEM WITH ALL CALL
1
2
3
~
10
11
12
~
20
C
E
-
+
R
Y
P1
P2
P3
LAF-20CA
LE-BN
1
E
-
LE-BN
LE-BN
1
E
-
1
E
-
LE-BN
1
E
-
BG-10C #1
BG-10C #2
1
2
~
10
E
-
+
R
Y
P1
P2
P3
+
-
R
E
L
E
NP-25V
NP-25V
+
-
PS-
1225UL
LE-BN
1
E
-
LE-BN
1
E
-
DC IN
NOTES:
1. Any LE- or LS- series sub station can be used.
2. Capacitor for All Call is Aiphone model NP-25V: 33µfd, 25V, non-polarized.
Capacitor must be inserted in series between BG-10C and the number terminal on the master station that
is wired to a standard sub station.
3. Background music can be distributed throughout the system via the BG-10C(s). Music source must provide
an AUX (10K ohm) output. Music is distributed to the master station through the "C" terminal, showed
wired to "11" above.
4. Each BG-10C can provide music and/or All Call to as many as 11 sub or master stations. Include as
many adaptors and power supplies as necessary to provide enough outputs to the stations in the system.
5. Do not connect "+" terminal between multiple BG-10C adaptors.
AUX
1
2
~
10
11
E
-
+
R
Y
P1
P2
P3
+
-
R
E
L
E
DC IN
AUX
To AUX (10K
ohm) output of
music source