67009600-EN - Edition 2015 - Rev. 1.0
62
VX2300 Digital System - “2 Wire” Audio/Video Door Entry System
VX2300 Digital System - Installation handbook
Art. 317N
Active/passive four way distribution box
Fig. 1
BUS
OUT
BUS
IN
BUS OUT 1
Close
Open
Close
Open
Close
Open
Close
Open
Close
Open
BUS OUT 2
BUS OUT 3 BUS OUT 4
S5
AMPLIFICATION
TR1
S1
S2
S3
S4
H
L
M
LD1
AMP>
Fig. 2
DESCRITPION
The unit distributes the bus signal to 4 outputs linked to videophones or intercoms. A switch (“AMP>”) allows to enable (active)
or disable (passive) the amplification. If active, the amplification can be adjusted in a linear way by a built-in trimmer. To make the
amplification adjustment easy, the related positions corresponding to a low level , a medium level and to a high level are marked.
The amplification only effects the 4 outputs and not the loop through output. Art. 317N also includes a bus isolation feature which
isolates Art. 317N from the rest of the bus in case a short on one of its outputs occurs . This prevents a short from happening in any
apartment impairing the whole system. In case of short on any BUS output the LED LD1 switches ON.
CONNECTION TERMINALS AND JUMPERS
BUS IN
Bus input terminals
BUS OUT
Bus output terminals (loop through to next distributor)
BUS OUT 1
Videophone/Intercom bus output 1
BUS OUT 2
Videophone/Intercom bus output 2
BUS OUT 3
Videophone/Intercom bus output 3
BUS OUT 4
Videophone/Intercom bus output 4
S1
Close/Open bus output jumper for BUS OUT 1. Move to close when BUS OUT 1 is not used
S2
Close/Open bus output jumper for BUS OUT 2. Move to close when BUS OUT 2 is not used
S3
Close/Open bus output jumper for BUS OUT 3. Move to close when BUS OUT 3 is not used
S4
Close/Open bus output jumper for BUS OUT 4. Move to close when BUS OUT 4 is not used
S5
Close/Open bus through output. If the distributor is the last in line move to close otherwise leave open
AMP>
Enable (upper position toward the BUS output terminals) or Disable (lower position) the amplification on the
BUS OUTPUTS from 1 to 4
AMPLIFICATION
Set the required level of amplification choosing between low, medium and high
TECHNICAL SPECIFICATION
Housing/Mounting:
Plastic box 70x110x30mm / direct wall mounting
Push buttons:
N/A
Programming:
N/A
Controls:
Outputs amplification (3 levels)
Power supply:
Supplied by the BUS line
Working temperature:
-10° +50° C