Fermax LOFT BUS2, Technical Manual, Page: 41 / 52

Page 41
B B
B B
BUS2 US2
US2 US2
US2 B B
B B
BUS2 US2
US2 US2
US2
Code 97462I-1 V07_09
The BUS2 amplifiers have a potential-free relay (C, No, Nc) which enables the use of both continuous
and alternating door lock-release mechanisms.
The 12 Vdc door lock-release supply can be carried out through the BUS2 amplifier (up to a
maximum door lock-release consumption of 0.4A).
When using the alternating door opener, it will be necessary to use an additional alternative source
(of sufficient dimensions), which via the relay contact, will provide the necessary current to activate
the door lock-release.
Electric door lock-release
MIC
NC NO C
-
BS
BUS-2
EXIT EXIT
B B +12
S
JP3
JP2
PACK EXTENSION
CN1
CN2
LEDS ON
SLAVE MASTER
LEDS OFF
TARJETERO
CARD HOLDER
CN4
CN3
AUDIO
BUS-2 VERSTÄRKER
AMPLIFICATEUR BUS-2
BUS-2 AMPLIFIER
AMPLIFICADOR BUS-2
PROG
TEST
C
NO
NC
STATUS LEDS
LEDS ESTADO
VERSION :
LANGUAGE
IDIOMA
10
PAN & TILT
D
C
B
A
JP3
JP2
CN4
CN3
SW1
CN1
CN2
MIC
Vac
24Vdc+12Vac
240V
~~
OVERLOAD
ON
~ ~
12 Vac
[B B][B B]
OUTPUT
INPUT
100-240 V ; 1,2A
50-60 Hz
24 V ; 2 A
12 V ; 0,75A
12Vac
12Vac
B, B
B, B
MIC
NC NO C - BS
BUS-2
EXIT EXIT
B B
+12
S
JP3
JP2
PACK EXTENSION
CN1
CN2
LEDS ON
SLAVE MASTER
LEDS OFF
TARJETERO
CARD HOLDER
CN4
CN3
AUDIO
BUS-2 VERSTÄRKER
AMPLIFICATEUR BUS-2
BUS-2 AMPLIFIER
AMPLIFICADOR BUS-2
PROG
TEST
C
NO
NC
STATUS LEDS
LEDS ESTADO
VERSION :
LANGUAGE
IDIOMA
10
PAN & TILT
D
C
B
A
JP3
JP2
CN4
CN3
SW1
CN1
CN2
MIC
Vac
240V
~~
OVERLOAD
ON
[B B][B B]
OUTPUT
INPUT
100-240 V ; 1,2A
50-60 Hz
24 V ; 2 A
12 V ; 0,75A
12Vdc
B, B
B, B
* Basic lock-release connection diagrams for BUS2 system
Continuous door lock-release
24Vdc
Alternating lock-release
Bridge between
terminals ‘+12’ and ‘C’.