Aiphone PG-50C - Manual (Page 4)

1. Mount the amplifier on a wall or base plate capable of supporting its weight securely. Be sure no
heat producing elements are nearby. Also be sure that the area behind the amplifier allows a clear
path of air to flow and that the air slots at the top and bottom are not obstructed.
IMPORTANT : To comply with NRTL/C safety regulations, a minimum clearance of 6 inches must
be maintained above the unit. (See picture at right.)
2. Loosen, but do not remove the screw at the bottom of the unit to gain access to the terminals and
switches under the lower cover.
3. Lift the cover all the way up. In the fully open position you can conveniently refer to the
labelling which indicates the terminal connections and dip switch settings.
4. Make all the proper connections, determined by which system is being used in conjunction with the amplifier.
(As you make your connections, the small "plate" rises from the bottom of the terminal to secure the wire.)
5. Connect the speaker line to the terminals labelled OUTPUT.
6. Set all appropriate switches and volume levels. (Refer to Names and Functions section.)
3
3
INSTALLATION
1
2
3
4
5
6
7
MC-60/4
#2
1
2
3
4
5
6
7
MC-60/4
#1
Additional blocks of
MC-60/4. Max. 10
stations per block.
4
MC-60/4
#10
MC-60/4
#9
+24VDC
8
9
7
PG-nC
Paging Amplifier
TB1
3
4
2
Page C/2
Note: When using the Tel/Mic input of a PG-C series amplifier, set dip switches 1&2 accordingly.
Please refer to Names and Functions section.
Terminals 3, 4, 6 & 7 do not connect to the
PG-nC amplifier but are necessary for
communication on the Market Com
system. Terminate these wires at a
separate junction point.
Music
Source
Tel/Mic
Paging
GND
1
1
2
3
4
5
6
7
WIRING DIAGRAMS
4
4
MARKET COM MC-60/4
Note: To prevent any possible oscillation,
ensure that the speaker wires are kept away
from any input wiring connected to the
terminal strip .
The Market Com system uses
the built-in MC-A adaptor.
Set switches 7 & 8 as follows:
MC-A
7 8
ON
6"
(–)
(+)
PS-2420UL
24VDC
(Airflow)
1
2
3
4
5
6
7
to 70V speakers
GND