UM0272 datasheet(12/40 Pages) STMICROELECTRONICS

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System parameters

UM0272

12/40

The last output is a micro relay with the NC, C and NO clean contacts available. The

maximum voltage and current applicable to the contacts is 0.4A @ 125VAC and 2A @

30VDC for resistive load and 0.2A @ 125VAC and 1A @ 30VDC for inductive load.

2.4

Partitions

A partition is a logical group of zones with an assigned name and behavior that can be

activated or deactivated by an activation device existing on the system (i.e. keyboard,

smartcard, etc.). On each partition, it is possible to associate two or more zones present on

the system; a single zone may belong to several different partitions.

Zones are associated as inputs or outputs:

●

An input association means that when the partition is deactivated by a device (i.e. by a

smartcard when entering a protected area) ONLY all the zones associated to the Input

will be excluded by the control flow. If any of the zones not associated to the

deactivated partition is forced, an alarm condition will be detected and processed.

●

An output association means that ONLY the associated zones will be controlled by the

CU once the system is activated by a device.

Each partition can be associated to one or more user codes and vice versa. Each time a

user enters his code, all the partitions associated to that code can be enabled or disabled

even individually.

2.5

Log events

The CU automatically records a certain number of events in the internal E2 memory once

they occur. The event log feature enables the owner or the installer (not the users) to view

the event history using the appropriate menu feature (or, these events can be downloaded

through the PC interface and analyzed). The system can record up to 999 events. If more

events occur, the oldest ones are automatically replaced by the newest.

2.6

Options

During the installation it is possible to enter Test mode. Test mode enables the installer to

test (by watching the signal level associated to the selected zone) zones installed on the

system individually or all together once all the sensors are wired on the CU and the zone

balanced. The CU automatically stores the balance values after the command is properly

sent by the installer to the CU.

In Output Test mode, it is possible to toggle each output level each time the installer presses

a key (or when the appropriate command is sent to the CU using the PC GUI). In this way, it

is possible to test each device connected to the outputs.

A Module Acquisition feature is available from the Option menu. This feature enables the

installer to update the communication bus module address table; adding new modules and

removing any deleted modules on the system. Once the update is started, the CU starts

scanning for modules and stores all the modules that acknowledge the CU interrogation. Of

course, this feature is available only at the service level.

Once an owner or service password is entered, it is possible to enter the system status

menu to display the actual status of each zone and output.

UM0272 Datasheet(PDF) 12 Page - STMicroelectronics

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