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There are different types of BUS in the installation:
  AUDIO + DATA BUS (cable 4 wires+screened twisted pair, Ref.5918)
For interconnection between panels–decoders–central units.
  VIDEO BUS (cable 3 wires + coaxial, Ref.5919)
For connection between video panel camera–distributors.
  MONITOR CONNECTION BUS (cable, Ref.59200)
For on-floor interconnection between decoder+distributor and monitor of the apartment.
  TELEPHONE CONNECTION BUS (cable, Ref.5922)
For on-floor interconnection between decoder and telephone of the apartmen

TELEPHONES AND MONITORS FOR THE APARTMENTS
Telephones and monitors required in an MDS system are the same ones as in an analogue system.

MDS Audio door entry system in a residential area with 1 general entrance and several internal blocks MDS Video door entry system in a residential area with 1 general entrance and several internal blocks

TYPES OF MDS SYSTEM
There are 3 types of MDS systems that are basically differentiated by:
A) TYPE of external PANEL.
B) CAPACITY for management of apartments and accesses.
C) ADDITIONAL FUNCTIONS incorporating: ACCESS CONTROL, SECURITY, AUTOMATION and CONTROL of LIFTS.
MDS DIGITAL SYSTEM

This is the most complete system with the highest management capacity and incorporating most additional features. It is recommended both for independent blocks and residential areas combined with other systems (MDS DIRECT, MDS CITY or ADS)
A) PANEL WITH KEYPAD AND ELECTRONIC DIRECTORY
The panel includes an electronic directory that allows searching for the residents’ names, their door number and generate the call. It is also possible to make the call by dialling directly the apartment number on the phone-type keypad incorporated. The system requires a Central Unit.
B) CAPACITY: FOR LARGE BUILDINGS and MEDIUM to LARGE RESIDENTIAL AREAS
Recommended for:
• Individual buildings: One Central Unit can manage up to 9.999 apartments and 32 accesses (between audio panels, video panels, access control readers and central guard unit - max.10 -)
• In residential areas:
- Combined with other MDS Digital panels in the internal blocks, capacity is practically unlimited.
It is possible to link up to 64 Central Units.
- Combined with MDS Direct and MDS City systems in internal blocks is capable of managing installations with a practically unlimited number of general entrances and apartments.
C) THE MDS DIGITAL SYSTEM allows:
• SEVERAL GUARD UNITS
• ACCESS CONTROL
• SECURITY. Centralised alarm system management.
• LIFT CONTROL
• AUTOMATION
• PROGRAMMING AND CONTROL BY PC

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