Aritech ATS4000 Manuel de service télécharger pdf (Page 59)

ATS Designers Guide 59

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4.1.1.4 Step IV. Expanding alarm zones and system outputs.

The control panels allow extending the number of available alarm zones using DGP

modules (described in section 4.2) and by using the ATS1202 control panel expansion.

Connecting the ATS1202 modules in cascade up to 32 alarm zones can be achieved.

Each ATS1202 module occupies one B – type slot in the housing.

If the design requires control panel outputs, relay output or OC output, expansions can be

installed. Besides the power supply and free housing space, there are no limits as to the

outputs supported by the control panel. The available expansion combinations can be

found in 1.1.

The ATS4500 control panel is functionally identical with ATS4000. This model comes with

the ATS1830 memory expansion preinstalled. The device is delivered with the ATS1644

housing, which provides ample space for additional expansions. The same memory

expansion and housing are provided with the ATS1250/60 access control DGP. That’s

why it is a recommended combination for systems with higher security standards and

integrated access control.

4.1.1.5 Step V. Central Station Reporting communications

Depending on the requirements for the system based on the CS station reporting, the

appropriate communicator module needs to be selected. As all communication modules

use a dedicated MI bus, and can be mounted under the control panel mainboard, this

configuration step is independent of the rest.

4.2 Configuring the DGP expansion modules.

Further alarm system design is described for the ATS4000 control panel. This is the basic

control panel type, from which the other types differ only by the size of the system, and

the availability of certain expansions. Details can be found in section 1.1.

4.2.1.1 Inputs

The address space of the alarm zones is divided between the control panel and the 15

remaining DGP modules. The division is predefined and does not depend on the installed

control panel or other equipment. Thus, the alarm zone numbers are permanently fixed to

the DGP expansions of a given address. Only the total number of zones is limited in a

control panel, not the addresses. This simplifies the system design in terms of the area

covered and the possibility of using any expansion types.

It has to be noted that the control panels and DGP modules are expandable up to 32

zones, and the address space division assumes 16 zone numbers per DGP. If the control

panel or the DGP is expanded beyond 16 zones, the next zones occupy addresses from

the next DGP address range. While there are no technical limitations for address

doubling, it is not recommended because of good practice of security system design.

The opposite is a situation in which devices with less than 16 addresses are used. For

example the ATS1220 provides only 4 alarm zones and cannot be expanded, meaning,

the whole 16 zone range being reserved, 12 alarm zone addresses stay unused.

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Aritech ATS4000 Manuel de service Page 59