Doc No. FM0804 issue 4 Page 18
12. PA AMPLIFIER INSTALLATION
The Advent XT2 PA amplifier (P/No. ZXT901) allows the onsite manager to broadcast Public Address announcements
through all intercoms simultaneously.
It can also be used to supplement the building’s Fire Alarm system by sounding
a fire alarm tone through all intercoms. One PA amplifier can drive 80 intercoms, for larger systems a second ZXT901
will be required and the site Audio 2 SP1 & SP2 wiring must be on a separate leg and terminated in SP3 & SP4 on the
Termination Board.
Contact Tynetec’s customer support for advice on larger installations.
The PA amplifier lid should only be removed during installation and service
–
it must be screwed
shut at all other times to prevent the risk of electric shock.
Never leave a live PA amplifier unattended with the lid removed.
INSTALLATION
The PA Amplifier is housed in a steel enclosure 200x500x100 mm (HxWxD) and should be wall mounted below the
Advent XT2 controller. Fix the chassis to the wall using the 3 keyholes
marked “
A
” below;
Mains-in
IEC Socket
with on/off
Switch
15V DC 105W
SMPSU Module
Wall Mounted Enclosure
(200 x 500 x 100 mm)
12V 5Ah
Battery
+24V DC 50W
DC-DC Converter
PA Amplifier
Board
100V Line
Step-up
Audio
Transformer
20mm Cable
Entry
Knockout
Lid Safety
Earth Bond
-24V DC 50W
DC-DC Converter
PA Audio-out
Crimp Terminals
Audio-in & RS485
Screw Terminals
5
6
m
m
A
A
9
5
m
m
250mm
250mm
20mm Cable
Entry Knockout
Mains
Supply
A
177mm
177mm
