- 04 -
Generater mode
of dialing tone,
echo tone, busy tone
Tone/signal processor
Generator of
tone and music
Record/play
control
DTMF
Encoder
External music input
Volume Switch
Audio Input
Audio output
Fans for dissipate heat
Power switch
Power sockets
Wiring terminal
for storage battery
12V
12V
12V
12V
48V
The Power Board is adopt high frequency power
switch with power range is between 88V to 260V.
In case of power failure or the local voltage lower
than 88V, the back-up battery can offer the power
to keep the unit working normally.
The battery is charged automatically after power
is restore to ensure the communication continues.
The system can work at least 7 hours when power
failure by using 7A reserve battery; if adopt 12A
battery it can work at least 12 hours, such analogy.
Voltage of battery is 48V, it can up to 50V after full
charge. Normally, the battery is 12V each unit, you
can connect with FOUR batteries (see right diagram)
Be sure the connection of battery is correct to avoid
PABX or battery is damaged.
2.2.2 AUDIO CARD
The Audio Card is take charge to generate various
of signal tone, i.g.Dial tone, Ringing tone,Busy tone,
Verify tone and OGM, etc.
It also charges some accessorial functions.
i.g. PC network,Voice Recording, paging,
Audio Input / Output.
.
Monitor Record Input
2.2.1 POWER BOARD
PC COM port
Record
Paging