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Section 1: ECC-50DA Remote Amplifier
1.1 Installation
This section provides information on how to install the ECC-50DA for use with the ECC-50/100
Emergency Command Center.
NOTE: The term ECC-50DA is used in this manual to refer to both the ECC-50DA (120 VAC
version) and the ECC-50DAE (240 VAC version) amplifier unless specified.
SW2 on the ECC-50/100's display board must be set to the UP position if any ECC-50DAs are
installed in the system. Refer to the ECC-50/100 Instruction Manual, P/N LS10001-000FL-E, for
more information. The ECC-50DA must also be enabled in user programming. 70 volt operation
of the ECC-50DA is also set up in user programming. Refer to the programming section of the
ECC-50/100 Instruction Manual, LS10001-000FL-E.
1.1.1 Board Layout
Figure 1.1 shows the location of terminals, dip switch, and circuit expander connection, used in the
installation of the ECC-50DA.
AC Transformer
Connector
6
CIRCUIT 4
CIRCUIT 3
CIRCUIT 2
+
IN
–
+
OUT
–
+
IN
–
+
OUT
–
+
IN
Audio Circuits
Figure 1.1 ECC-50DA Board Layout
ECC-50/125DA Instruction Manual — P/N LS10027-000FL-E:D 5/21/2015
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Data
Audio Riser
Bus
Out
In
–
+
–
+
–
+
A
B
OUT
IN
SBUS
CIRCUIT 1
BATTERY
–
+
OUT
–
+
IN
–
+
OUT
–
Battery
Connector
SBUS ID
Dip Switch
Audio
Expander
Connection
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