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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
BUS2 SYSTEM BASIC DEVICES
In addition to the outdoor entry panels and receptions, the BUS2 systems require a set of devices to route and establish
communication between the panel/reception and the apartment terminals.
Below, the function of each basic device within the BUS2 system is described and explained.
DEVICE
Panel switcher
(Ref. 3246)
Distributors
(Ref. 3240/41, 3250/51)
FUNCTION
MADE IN SPAIN
REF. 3246
CAMBIADOR DE PLACAS BUS-2
BUS-2 PANEL SWITCHER
AUX
PLACA 2
PANEL 2
PANEL 1
PLACA 1
ON
ON
FAULT
FAULT
BUS-2 OUTPUT
B
B
B
B
B B
B
B
REF. 3248
MADE IN SPAIN
B
B
B B
B
B
FAULT
FAULT
ON
ON
TRONCAL
BUS IN
DERIVADOR DE TRONCALES BUS-2
BUS-2 RISER SWITCHER
CONNECT
DO NOT
RISER
RISER
TRONCAL
NO CONECTAR
In BUS2 systems with more than 1 access
(two door
entry/video door entry points or a combination of these),
the panel switcher is the device which selects and
connects the active panel with the general bus.
The ‘branch shunt’ separates the BUS2 signal into various
trunks (branches).
The ‘BUS2 distributors’ are used on residential floors to
distribute the BUS2 signal (audio-video-data) to the various
terminals within the apartment (monitors/telephones).
BUS-2 DISTRIBUTOR - 4 OUTPUTS
DISTRIBUIDOR BUS-2 - 4 SALIDAS
REF. 3241
MADE IN SPAIN
PROX/NEXT DISTRIB
B
B
B
B
B B
PREV DISTRIB
B
B
BUS-2 OUTPUT
BUS-2 INPUT
FAULT
ON
ON
DERIVACION
SPLIT 2
DERIVACION
B
B
ON
FAULT
ON
ON
FAULT
FAULT
B
B
ON
FAULT
DERIVACION
SPLIT 4
SPLIT 1
SPLIT 3
DERIVACION
NO
TERM
JP1
TERM
JP1
BUS2 power supplies (24 Vdc). Provide the system with
power.
Depending on the system (number of monitors/
telephones installed, type of lock release used, distance,
etc.), the necessary voltage may vary in model and number
of power supplies.
PWR BUS PWR BUS
PREV BUS
ON
OVERLOAD
100-240 V
100-240V
2
2
4820
PREV BUS
2
50-60 Hz
INPUT
100-240V ; 1,5 A
OUTPUT
24 V ; 2 A
4820
PWR BUS
PWR BUS
ALIMENTADOR
The BUS2 systems permit alternating and continuous lock
releases thanks to the potential-free relay present in the
amplifier in the outdoor entry panels.
B
B
B B
BUS-2 OUTPUT
BUS-2 INPUT
led PRG
ACTV EXT
GND
INHAB/DISABLE
OUTPUT 12V 0.5A
MODULO RELE
BUS 2
REF. 3247
MADE IN SPAIN
GND
relay ON
+12V
NC
NO
C
RELAY MODUL
BUS 2
PRG
10xsec
sec
1 2
ON
3
1 2
ON
3
DSW1
TEST
CONFIG
DSW2
REF. 3249
MADE IN SPAIN
B B
PREV BUS
REPETIDOR BUS2
BUS-2 REPEATER
BUS-2 OUTPUT
NO
TERM
JP1
TERM
PROX/NEXT BUS
CONNECT
DO NOT
NO CONECTAR
BUS-2 INPUT
Branch shunt
(Ref. 3248)
Relay
(Ref. 3247)
Repeater
(Ref. 3249)
BUS2 power supplies
(Ref. 4820,4822, 48222,...)
Lock release mechanisms
The BUS2 system offers the possibility to active relays
connected to the BUS from the apartment terminals (using
the buttons F1, F2 for additional functions), without the
need for any extra cable.
The ‘BUS2 repeater’ inserted in the bus increases the
BUS2 signal, thus expanding the system’s distance and
number of terminals.