Fire-Lite ACC-25/50DAZS Distributed Audio Panel - Manual (Page 47)

Distributed Audio Panel Manual — P/N 52265:B1 6/8/2010 47
Installation of Option Modules Installation
8. Connect field wiring to newly installed amplifier. Figure 3.12 on page 42 for illustration of
speaker connections if amplifier is being used to expand system power to 50 watts (i.e.
providing dual 25 watt speaker circuits). Figure 5.3 on page 62 for illustration of connections
if amplifier is being used as a backup.
3.8.2 70.7 V
RMS
Transformer Module (FC-XRM70)
The 70.7 V
RMS
Transformer Module can be used to convert the 25 V
RMS
amplifiers for installa-
tions where 70.7 V
RMS
speakers already exist or are to be installed. Speaker wiring continues to be
supervised during standby, alarm and while background music is playing when transformer is
installed. Transformer connector J1 connects to amplifier connector P1.
1. Carefully remove the ACC-AAM25 Audio Amplifier Module(s) from the main circuit board.
Figure 3.16 on page 47 for installation procedures and reverse the steps.
2. Install the three standoffs supplied with the FC-XRM70 Module by inserting each supplied
screw into the three holes on the solder side of the ACC-AAM25 Audio Amplifier Module(s).
Secure each standoff in place with the screws. Refer to Figure 3.17 for the location of the
mounting holes.
3. Reinstall the Audio Amplifier Module(s) following the procedure accompanying Figure 3.16.
4. Remove the two factory installed jumpers from connector P1 of the Audio Amplifier
Module(s). Refer to the illustration in Figure 3.17.
5. Carefully align the J1 connector on the FC-XRM70 Transformer Module(s) with the P1
connector on the Audio Amplifier Module and press securely into place. Make certain the pins
are properly aligned to prevent bending or breaking of pins.
Figure 3.16 Installation of Optional Audio Amplifier
ACC-AAM25 Audio Amplifier
Module - to connector P2 of
the main circuit board
(Steps 4 & 5)
Remove mounting screw and
install supplied Metal Standoff
(Steps 2, 3 & 5)
ACC-AAM25 Audio
Amplifier Module -
factory supplied on
connector P1 of the
main circuit board
Factory installed
metal standoff
(Steps 2 & 5)
Switch S1 -
Backup select
(Step 6)
Factory installed metal standoff (Steps 2 & 5) Amplifier J1 to main circuit board P2 (Step 4)
Circuit
Trouble
Amp
Supervision
Do not remove jumpers
unless installing FC-XRM70
Module (Step 7)
ac
c2
5d
am
t3
.w
mf
! CAUTION: DISCONNECT POWER
BEFORE INSTALLING ANY MODULES, MAKE CERTAIN ALL POWER (AC AND DC) HAS BEEN
REMOVED.