PAGE 21 of 80 VX2200 TECHNICAL MANUAL VER1.4
BUS EXCHANGE DEVICES (2206A, 2206V)
The VX2206-VX2206/V is an electronic BUS exchanger controlled by the “Busy” signal of the door panels or
the Concierge panel. By using this device (1 required for each block), it is possible to have “main entrances”
and “block entrances” on the same “2 wire BUS” (in this way the system can have one or more semi-
independent lines or multiple speech paths). This device switches the “Main BUS” (from the main entrances)
and the “Local BUS” (from the block entrances) to the “BUS out” which is connected to the flats. For video
intercom applications, use the 2206/V (4 wires no-coax for video intercom systems locally supplied or 6 wire
for centrally supplied). The circuit is built into a 5 modules DIN (or 9 for VX2206/V) and incorporates a 4 way
Dip-switch to be configured according to the number of phones connected to the output.
Operation
In stand-by mode:
The signal from the main entrance terminals “MB” and “-” are linked to the “BO” and “-” terminals (the
“BUS out”), while the video signal of the “V1” and “V2” coming from the main bus are sent to the video
output terminals (only for 2206V) “V1O” and “V2O”.
During the call:
- If the call is from a block entrance, the system connects the “BUS Out ” (terminals “BO” and “- ”) with
the “ Local BUS” (entrance terminals “LB” and “-”) and connects the video outputs (only 2206V)
Connection Function
+ +12Vdc input
- 0V
LBY Local Busy input
MBY Main busy input
BO Bus out to
- apartments
LB Bus in from
- local doors
MB Bus in from
- Main doors
V2O Video out to
V1O apartments
V2L Video in from
V1L local doors
V2P Powered video out
V1P to next bus device
V2 Video in from main
V1 Doors
V2 Video loop to next
V1 Bus device
SW-V Switch 0V for relay
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