SEKURE ITI UltraGard Manual de usuario descargar pdf (Pagina 23)

FIRE ALARM PANEL CONNECTIONS

If you plan to connect the UltraGuard 12V to a fire alarm panel you may need to take into consideration that some fire alarm

panels require normally open type C contacts.

UltraGuard 12V output zones have normally closed type B contacts. If an UltraGuard 12V output is directly connected to a

fire alarm panel that requires normally open contacts, it will perceive the signal as alarm.

In order for UltraGuard 12V to communicate with a fire alarm panel you have to convert form B contacts to form C to adhere

to standard fire panel wiring convention. You can use a UL Listed 12 Volt DC Fire Alarm form C relay such as an Air Products

and Controls Inc. MR-701.

Relay contacts should be adequate for the particular fire alarm panel you are connecting to. The relay input control, however,

should not exceed 30ma.

In accordance with fire safety regulations and UL standards the relay has to be mounted within three feet of the UltraGuard

Monitor and in a single duplex outlet box or other acceptable enclosure.

Figure 23 shows schematics of type C relay installation.

Note that the relay has to be powered by one of the UltraGuard 12V zones (pins 1 and 3 of CO1 on figure 23). This is important

because in case of a power failure to the UltraGuard 12V the fire alarm panel will receive a fault signal  not alarm.

With fire panels UltraGuard Basic Mode ONLY can be employed (see chapter Basic Mode, page 8)

Figure 23. Fire alarm panel connection

(Power Limited To 250 mA)

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SEKURE ITI UltraGard Manual de usuario Pagina 23