67009600-EN - Edition 2015 - Rev. 1.0
66
VX2300 Digital System - “2 Wire” Audio/Video Door Entry System
VX2300 Digital System - Installation handbook
Art. 2306N
Block exchanger
Art.2306N
2 Wire Bus Block Exchanger
BUS-O
DIP-SW
PSL
PS
BUS-M
BUS-M
O
C
M
L
H
MBL
2
J
4
J
BUS-L
5
4
3
8
7
6
ON
2
1
Fig. 1
Fig. 2
DESCRIPTION
The block exchanger is used on 2 level systems where there are main entrances that call every apartment and local block entrances
that only call the apartments within that block. One Art. 2306N is required for each block.
The BUS line coming from the main entrance (which may be digital or traditional panels) must be connected to the
BUS-M
input
(there are two sets of
BUS-M
connections to allow the
BUS-M
to be connected to several Art. 2306N units in series.
BUS-O
connects
to the riser towards the apartments and BUS- L connects to the local block door panels. The function of the switcher is to connect
the
BUS-O
to either the
BUS-L
or the
BUS-M
depending on the source of the call.
Jumpers
J4
adjusts the amplification on the main bus (
BUS-M
). High medium and low amplification is available. Jumper
J2
is an end
of line jumper for the main bus (
BUS-M
). This should be in the O position for all but the last Art. 2306N (In order of connection) while
on the last it should be in the
C
position. The 8 way dip-switch is used to set the exchangers address (from 1 to 8 using switches 1
to 4) and the door panel type at the main entrance (digital or traditional on switch 8). Switches 5-7 are not used at the moment.
The
PS
connection is for the power supply which will power the exchanger and the devices connected to it. There are two LED's for
diagnostic purpose to check correct connections at the
BUS-M
and
PS
inputs.
The Art. 2306N makes each block a stand-alone installation (each block may work separately but also communicate with a communal
entrance(s)) Each block may have up to 100 users and each system can have a maximum of eight blocks allowing an installation to
reach up to 800 users (Note: When using traditional main panels the limit is 80 users).
CONNECTION TERMINALS, LEDS AND JUMPERS
DIP-SW
8 Way dip switch used to set the exchanger address (switches from 1 to 4) and the main door panel type (switch 8)
J4
BUS-M input amplification (3 levels: H = High, L = Low and M = Medium)
MBL
BUS Master LED: if the LED is switched OFF, disconnect the mains and reverse the wires connected at the BUS-M input –
N.B. Disconnect the link between each exchanger and starting with the one connected to the main panel(s)
check the LED. If it is off, power down and reverse the cables then connect the next exchange and repeat the LED
check until all LED's are on
J2
BUS-M line termination (C = Closed, O = Open): when more than one exchanger is used move J2 to
“C”
position only on
the last exchanger in order of connection and leave the others in the
“O”
position.
BUS-M
Main BUS input from the main entrance or from another block exchanger (Two sets on terminals for pass through con-
nections to the next Art. 2306N)
BUS-O
Bus output to intercoms/videointercoms of the block of the exchanger
BUS-L
Local BUS input from the door panel relative to the block (or from a Art 2301N if the block has more than one door panel)
PS
Power supply input: for blocks with 1 door panel and a maximum of 20 videophones use the Art. 2321, use the Art. 2321/P
in all other cases
PSL
Power Supply LED: if switched ON means the polarity is correct at the PS input
(if the LED is switched OFF, disconnect
the system from the mains and reverse the connection of the wires at the PS input)
