Single-Zone Paging With Customer-Supplied Amplifier - AT&T MERLIN LEGEND Release 3.0 Installation Manual

Installing Adjuncts
Speaker
Control Unit
WARNING!
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
D4BU
Cord
HARRIS/DRAC0N
22050-900
J2
D4BU
Cord
I
/
C A B L E *
GND
117VAC
WHEELOCK
POWER SUPPLY
MODEL EPS-2401
The black wire from the LS trunk adapter power cable
CUSTOMER-SUPPLIED AMPLIFIER
OUTPUTS
voice
coil
J5 J4
PAGE INPUT
J1
Model
Loop-Start Trunk
Adapter
J1
+24V
POWER
,
117VAC