66252090 - V1.2 - 15/03/24
- 17 -
VX2300 Digital System - “2 Wire” Audio/Video Door Entry System
Art.4384/4384X - Installation instructions
General directions for installation
CABLE TYPES AND CROSS SECTIONAL AREAS
The VX2300 digital system can use several types of cables but depending on their specication will allow dierent distances up to 400
meters maximum. We do not recommend the use of shielded cables because of the high eddy capacitance. It is also not advised
to double up on cables as this will also increase the capacitance. The following tables specify values of resistance, capacitance and
maximum distances achievable for several types of cables (capacitance and resistance values are referring to 100 metres of cable).
DISTANCE TABLE WITH PASSIVE DISTRIBUTION OF THE VIDEO SIGNAL 318S/318
Cable Sect. (mm2) Resistance
1
Capacity
2
A
3
B+C
3
A+B+C
4
Max Cable
4
Videx cm2 1.00 2.5Ω 5.0nF 150 100 250 800
Telephone 0.28 6.5Ω 5.5nF 75 60 135 800
UTP Cat.5
(only one pair)
0.22 8Ω 4.9nF 60 40 100 800
Single-wire 0.8/1 2.5Ω 10nF 40 25 65 400
DISTANCE TABLE WITH ACTIVE DISTRIBUTION OF THE VIDEO SIGNAL 317/319
Cable Sect. (mm2) Resistance
1
Capacity
2
A
3
B
3
C
3
A+B+C
4
Max Cable
4
Videx cm2 1.00 2.5Ω 5.0nF 200 200 50 450 800
Telephone 0.28 6.5Ω 5.5nF 100 100 40 240 800
UTP Cat.5
(only one pair)
0.22 8Ω 4.9nF 80 80 30 190 800
Single-wire 0.8/1 2.5Ω 10nF 50 50 25 125 400
2321
2321
2
2
2
2
2
2
22
22
22
22
Art.HDR-15-12
ID: 1
ID: 50
ID: 51
ID: 100
Art.2321
Art.2321
Art.318S
Art.318S
Art.318S
Art.318S
C
B
A
2
2
1. Maximum cable resistance per 100 metres.
2. Maximum cable capacitance per 100 metres.
3. Maximum length in metres of the cable section from the out-
going point to the incoming point.
4. Maximum distance in metres, adding the sections of cables
involved, in the call between the outdoor station and the
destination video-intercom.
5. Maximum overall cable quantity in metres used in the sys-
tem. In the presence of block exchangers, Art.2306, it is per-
mitted to use a larger amount of cable as long as, for each
block, the total of the cable used to connect the blocks plus
the total of the cable used in the block never exceeds 800
metres: For example using CM2 cable, if in an installation
with 3 secondary blocks 200 metres of cable have already
been used to connect the main outdoor stations and blocks,
within each block up to 600 metres of cable may be used for
a total of 200+600+600+600 = 2000 metres of cable.
NOTE:
• It is strongly advices not to use shielded cables due to the
increased capacitance which can cause video quality and
data transmission issues.
• In the case of multipair cables (UTP Cat.5/6) use only one
twisted pair of the 4 pairs available.
• For the routing of cables on the system it is necessary that the
cables are ran separately from any power lines or other high
voltages in general, otherwise, direct exposure to electromag-
netic interference could cause noise in the audio/video signal
and loss of functionality in digital communication. Where it is
necessary to reuse existing cables, it may be necessary to use
active bus splitters such as Art.317 and Art.319.
BUS DEVICE SETUP AND VIDEO DISTRIBUTION
• When changing dip switch settings, disconnect the device from the bus for a minimum of 1 minute to allow the unit to fully discharge.
• When you have more than one device in the same apartment, all the devices must be connected to the same video distributor (Art.317
or Art.319): this means that you cannot use two video distributors Art.318 for one apartment where you have 4 videophones/intercoms.
• After completing the installation proceed to testing. The video level gain can be adjusted at several points including distributors,
entrance exchanger and bus boosters.
To Next Page
Loading...
