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C1517M-A (11/02) 11
WIRING EXTERNAL ALARM INPUTS USING ANALOG CIRCUITRY
Figure 9 summarizes what is required in supervised and unsupervised modes to wire external alarm inputs using analog TTL/CMOS circuitry rather
than alarms.
ALARM
ALARM
ALARM
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ALARM
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Figure 9. TTL/CMOS External Alarm Wiring