Installation and Use Manual

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70V25V 8 COM
TEL
CONT
T
NIGHT
BELL
L
U
AMPLIFIER
COMMERCIAL
538C
LISTED
0.5A
60 Hz
120 VAC
MADE IN KOREA
AND RATING
SAME TYPE
BREAKER WITH
REPLACE CIRCUIT
CAUTION:
VOL
NIGHT BELL
R
TEL
GND
MUSIC
IN
70V25V 8 COM
PUSH TO RESET
CIRCUIT BREAKER
LO-CUT
PEAK
LEVEL
VOL
PAGE MUSIC
VOL TONE
E15903
LUCENT TECHNOLOGIES
Page 7 of 8
All output wiring connections are made to the terminal strip located on the left side
of the LU10WAMP.
IMPORTANT: Before making any connections or wiring changes to the amplifier
or any equipment connected to the amplifier, make sure that the amplifier is NOT
plugged into an AC outlet.
NOTE: The amplifier does not have a power switch, so it must be unplugged in
order to turn the power off.
Speaker Connection 70-volt speaker connections are made between the 70V and COM terminals on the
output terminal strip (see Figure 3).Use a 22 AWG shielded,twisted pair cable (Com
Code: 401882956, Pec Code: 2734-SPK). Connect the shield of the cable to the
terminal strip.
NOTE: The amplifier output terminal strip also includes terminals for 8-ohm and
25V speaker connections. These are provided for special applications and are
generally not used.
Figure 3: Speaker Connection, Output Wiring
Output Wiring
Enlarged view of
Ouput Terminal Strip
to PBX ground