Single-Zone Paging With Customer-Supplied Amplifier - AT&T MERLIN LEGEND Release 3.1 Installation Manual

Installing Adjuncts
Speaker
Tu rn
off
po we
ins ert r be
for e
rem ing
ov ing or
mo du
les
AG INPUT
Control Unit
WARNING! The black wire from the LS trunk adapter power cable
must be connected to the + (positive) input of the Wheelock PS. The grey on
black wire must be connected to the - (negative) input.
Figure 3–23. Single-Zone Paging with Customer-Supplied Amplifier
3–32
Installing Telephones and Adjuncts
CUSTOMER-SUPPLIED AMPLIFIER
voice
coil
PAGE INPUT
D4BU
Cord
J1
HARRIS/ DRACON
Model
22050-900
J2 J1
D4BU
Cord
POWER
CABLE
GND
+
117 VAC
WHEELOCK
POWER SUPPLY
MODEL EPS-2401
OUTPUTS
J4
J5
117 VAC
Loop-Start Trunk
Adapter
+24V