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Audio Command Center Series Manual —
P/N 51889:E1 6/8/2010
Installation
Operating Power
3.3 Operating Power
AC Power and Earth Ground Connection
Primary power source for the ACC-25/50, ACC-25/50ZS, and ACC-25/50ZST is 120 VAC, 60 Hz,
1.5 amps. Overcurrent protection for this circuit must comply with Article 760 of the National
Electrical Code (NEC) and/or local codes. Make certain that the AC mains circuit breaker is off
before making any wiring connections between the mains and the panel. Run a pair of wires (with
ground conductor) from the protected premises main breaker box to TB3 of the main circuit board.
!
WARNING: RISK OF EQUIPMENT DAMAGE AND PERSONAL INJURY
SEVERAL DIFFERENT SOURCES OF POWER CAN BE CONNECTED TO THIS PANEL. DIS-
CONNECT ALL SOURCES OF POWER BEFORE SERVICING. THE PANEL AND ASSOCIATED
EQUIPMENT MAY BE DAMAGED BY REMOVING AND/OR INSERTING CARDS, MODULES OR
INTERCONNECTING CABLES WHILE THIS UNIT IS ENERGIZED. BE SURE TO OBSERVE
PROPER GROUNDING AND HANDLING PROCEDURES.
Backbox
Transformer Mounting Studs
ac
c25bk
b.wm
f
Transformer Mounting Slots
Main Circuit Board
Mounting Studs
P1 Connector -
Transformer
a
c2
5x
m
n
t.
w
m
f
AC Terminal TB3
P10 Connector - Battery
Transformer Assembly
Figure 3.4 Installation of Power Supply Transformer
