Aiphone LAW-1 - Manual (Page 5)

INSTALLATION OF LAR-1 OPTIONAL HANDSET
1) Remove four screws on the bottom of master station and lift the plastic case from the base.
2) Using a sharp knife, cut open between terminals A & B, and also C & D on the printed circuit board.
3) Using 8mm (K”) drill or soldering iron, make a hole to pass conductors into the body of master station.
4) Mount the handset to body of master station with supplied screws.
5) Connect the nine conductors from the handset to the printed circuit board. For full information please refer
to the instruction sheet packed with LAR-1.
NOTE: The LAH-20 master station with LAR-1 handset can not be mounted to wall.
LAH-20 SYSTEM WITH EXTENSION TALKBACK SPEAKER USING LAN-1 ADAPTOR
* Each LAH-20 master may be connected to one extension speaker.
* One extension speaker may be connected up to three LAH-20 masters but requires one LAN-1 adaptor per each
master.
* Extention speaker requirements; Either AlPHONE MODEL LA-A standard substation(speaker output O.SWmax.),
or locally available a 8 ohm paging horn (speaker output 1.2W max.) or a 16 ohm paging horn (speaker output IW
max.) may be used.
NOTE; The call switch in the LA-A can not be used.
* Wiring: Connect yellow, blue, black, white and red wires from LAN-1 to 5,6, 14, SI and S2 terminals on the
LAH-20 and then yellow and blue wires from the secondary side of LAN-1 to the extension speaker.
* In this example buttons #8-A on station #18 selects LA-A extension speaker and buttons #9-A on station #19 and
buttons #10-A on station #20 select paging horn.
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STATION
# 16
STATION STATION
# 17 # 18
STATION
# 19
STATION
# 20
NOTE: LAN-1 adaptor should be located near the LAH-20 master.
Distance from the LAH-20 master to extension speaker must not exceed 150m (450’).
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