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MRP-4424 Document 15180 Rev D 03/12/97 15180:D
Alarm Relay
One Form-C dry alarm contact is provided in the basic panel for controlling supplementary devices.
It is rated 2 amps at 30 VDC and 0.5 amps at 30 VAC (resistive), and is non-silenceable when an alarm
occurs. See below for terminal location.
Trouble Relay
One Form-C dry trouble contact is provided in the basic panel for controlling supplementary devices.
It is rated 2 amps at 30 VDC and 0.5 amps at 30 VAC (resistive), and will silence when trouble condition
is cleared. See below for terminal location.
Note:
The alarm and trouble Form-C dry contact relays must be power limited relays. They must be wired from
one of the 24V power limited terminals as shown in the figure below or a comparable UL listed power limited
power supply.
3.5
Power
CAUTION: Several different sources of power can be connected to this panel. Disconnect
all sources of power before servicing. The panel and associated equipment may be damaged
by removing and/or inserting cards, modules, or interconnecting cables while this unit is
energized.
This output is not suitable for power-
ing devices requiring filtered, regu-
lated DC power.
The combined current draws from the Resettable and Non-Resettable outputs cannot
exceed 200 mA.
RMS-Regulated Power
24 VDC power for inductive-type
devices such as door holders
can be connected to TB1 termi-
nals 1(+) and 2 (-).
1
2
3
4
+24VU +24VR +24VNR
+ - + - + -
TB1
4-Wire Smoke Detector Power
24 VDC filtered, regulated, reset-
table power for 4-wire smoke de-
tectors can be obtained from TB1
Terminals 3 (+) and 4 (-).
Non-resettable Power
24 VDC filtered, regulated, non-
resettable power can be drawn
from TB2 Terminals 1 (+) and 2 (-).
ALARM TROUBLE
NO NC C NO NC C
Alarm Trouble
+24VU +24VR +24VNR
+ - + - + -
- -
-
- -
-
- -
-
or or
1
2
3
4
5
6
1
2
3
4 1 2
2
TB1
TB2
TB3
1 2
TB2
Figure 3.4-2: Alarm / Trouble Coils and Contacts
Figure 3.5-1: Diagram of Power Terminals
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