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B
B
B
B
BUS2
US2
US2
US2
US2
B
B
B
B
BUS2
US2
US2
US2
US2
Code 97462I-1 V07_09
B, B
: Data bus, audio and video + 24 Vdc power supply (video: only in video amplifier).
S
: Activation signal which gives a negative result when the panel is activated after a call or autostart.
BS, -
: Button connection to open door from hall interior.
+12
: Auxiliary voltage output (12Vdc, 0.4A max).
C, NO, NC
: Potential-free door lock release relay. Activates alternating lock release (if the system is equipped
with this source), magnetic locks, signals to other devices, etc.
Amplifier version
Connection terminals
:
12
* Technical characteristics
11
SW1 Mapping
: button to enter switch programming mode (see Mapping section).
Consumption
Operating Temperature
Maximum audio power in direction apartment-street
24 Vdc
on standby
active audio
-10 , +60 °C
80 mA
300 mA
Maximum audio power in direction street -apartment
Power supply
2 W
0.15 W
10
* Restore default values Reset
The BUS2 amplifier has a ‘Reset’ function which can be used to restore programmed default parameters (door and
hall lock-release time, access codes, mapping).
- Reset from button panels
To restore the default values, follow the steps below:
1.- Reset amplifier: disconnect power supply
2.- Press the SW1 button, connect power supply and keep SW1 button pressed until you hear the reset confirmation
sound.
- Reset from keypad panels
To restore the default values, follow the steps below:
1.- Reset amplifier: disconnect and re-connect power supply.
2.- Within the first 60 seconds, enter the code A708B9. After entering the code, a prolonged beep will sound to
confirm the restoration of default values.