HAM841K GB
4
PANIC
SMOKE/FIRE
SENSORS
NOTE :
N.O. CONTACTS SHOULD
BE WIRED IN PARALLEL
1K -
INTERNAL
CATHODE
LED
ANODE
CATHODE
SMALL FLAT
CATHODE
ANODE
ALARM SENSOR
CONTACTS
NOTE :
N.C. CONTACTS SHOULD
BE WIRED IN SERIES
CONNECTIONS
Terminal 1 & 2 : 24 hr instant-alarm circuit
This circuit is monitored round the clock and is unaffected by the alarm key switch. This is a normally open circuit. It can be
used for fire and smoke detectors, panic switches and tamper circuits. Note : these two terminals must remain open, i.e. no
connection should exist between 1 & 2 when all switches and sensors are in their normal reset positions.
Terminal 2 & 3 : N.C. Instant-alarm Circuit
This circuit is controlled by the alarm on/off key switch. Use it to connect any area that requires protection without using a
delay between detection and the sounding of the siren - motion sensors, window switches, window foil tapes etc. can be
connected here. The contacts of these sensors should be shorted when in the normal reset condition and they should be
arranged in a series loop (see figure 2).
FIG. 2 : N.C. INSTANT-ALARM CIRCUIT
Terminal 4 : Alarm status indication
Terminal 4 allows the connection of a low-current LED with the same function as the Exit/Alarm LED. It can be used on
external key switches in order to provide an indication of the alarm status. The cathode terminal (normally indicated by a
small flat on the plastic body adjacent to the lead. The cathode is the shorter of the two leads of this LED) is connected to
terminal 4 and the anode terminal is connected to the positive power connection (terminal 21). This circuit does not require
a resistor as the control panel is equipped with an internal resistor. Reverse the connections and try again if the LED does
not work. LEDs are available from electronic supply stores.
FIG. 3 : REMOTE ALARM STATUS INDICATOR
FIG.1 : 24HR INSTANT-ALARM CIRCUIT
