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Installation of Option Modules
3.8.2 70.7 V
RMS
The 70.7 V
Transformer Module can be used to convert the 25 V
RMS
speakers already exist or are to be installed. Transformer connector J1 connects to amplifier connector P1.
!
Caution: Before installing any modules, make certain all power (AC and DC) has been removed.
Carefully remove the FC-AAM25 Audio Amplifier Module(s) from the main circuit board. Refer to Figure 3-
1.
14 on page 27 for installation procedures and reverse the steps.
Install the three metal standoffs supplied with the FC-XRM70 Module by inserting the threaded male end of
2.
each standoff into the three holes on the component side of the FC-AAM25 Audio Amplifier Module(s).
Secure each standoff in place with a supplied nut. Refer to Figure 3-15 for the location of the mounting holes.
Reinstall the Audio Amplifier Module(s) following the procedure accompanying Figure 3-14.
3.
Remove the two factory installed jumpers from connector P1 of the Audio Amplifier Module(s). Refer to the
4.
illustration in Figure 3-15.
Carefully align the J1 connector on the FC-XRM70 Transformer Module(s) with the P1 connector on the
5.
Audio Amplifier Module and press securely into place. Make certain the pins are properly aligned to prevent
bending or breaking of pins.
Secure the FC-XRM70 Transformer Module(s) to the Audio Amplifier Module(s) with the supplied screws. It
6.
is important that the supplied metal screws be used in order to help protect against electrical transients.
FIGURE 3-15:
Two Factory Installed Jumpers on P1 of Each
Amplifier Module Must be Removed to Install the
70.7 V
RMS
28
Technical Manuals Online! - http://www.tech-man.com
Transformer Module (FC-XRM70)
70.7 V
Transformer Module Installation
RMS
Transformer (Step 4)
Install Standoff in
Mounting hole
(Step 2)
firealarmresources.com
amplifiers for installations where 70.7 V
RMS
FC-AAM25 Audio
Amplifier Module
FC-XRM70
Transformer Module
Document #50580
Rev.C
8/12/97
P/N 50580:C
RMS
Insert standoff
Insert standoff
(Step 2)
(Step 2)
Component side
FC-AAM25 Audio
Amplifier Module
Secure with
nut (Step 2)
Install Standoffs in
Mounting holes (Step 2)
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