Protectowire 2000 FireSystem Spezifikationen PDF herunterladen (Seite 48)

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The Common Alarm Signaling (CAS) Relay provides two sets of contacts for interfacing to other control equipment upon the

initiation of any alarm condition. This relay is normally non-silenceable

but can be field modified to provide silenceable contacts.

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The relays positive terminal (18/24) is sourced with 24V FWR. Once any detection zone is initiated (Alarm State), a “Common

Alarm” negative going output connected to the negative (0) terminal of the relay is activated. The relay is then energized and the

contacts change state. The relay resets when all initiating device zones are reset to the standby condition.

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The Common Trouble Signaling (CTS) Relay provides two sets of contacts for interfacing to other control equipment upon any

system trouble or switch supervisory alarm condition. This relay is normally non-silenceable but is field selectable by placing the

jumper “B2” located on the Control Card to the “S” (Silenceable) position. See illustration below.

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When a system fault or supervisory occurs, the Main Board common trouble contacts, used as a pilot, change state de-energizing the

(CTS) relay. The Common Trouble Signaling (CTS) Relay contacts in turn change state until the trouble condition is cleared or reset.

If the control cards “B2” jumper is set at the “S” (Silenceable) position, the relay may be returned to the normal state by depressing

the trouble silence button “Sys./TRO. SIL.” on the control card. Only in this mode will subsequent supervisory alarms cause the

(CTS) relay to reactivate, otherwise the relay will remain de-energized until all system troubles are cleared or reset.

Note A: A label has been added to reconfigure

the contact arrangement of the CTS relay. This is

necessary since the relay is normally energized

and de-energizes in a trouble condition.

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DC Contact Rating 7 amps @ 24VDC

AC Contact Rating 10 amps @ 115VAC

Contact Configuration DPDT

Coil Rating 0.035 amps @ 24VDC

Indicator Red LED

DC Contact Rating 7 amps @ 24VDC

AC Contact Rating 10 amps @ 115VAC

Contact Configuration DPDT

Coil Rating 0.035 amps @ 24VDC

Indicator Green LED

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Protectowire 2000 FireSystem Spezifikationen Seite 48