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FMUX/SAT Multiplexer
© 2006 Cronyx
Emergency Alarm Connector
DB-9 (male) connector is used for emergency alarm connection:
Pin-out:
1
–
open during no alarm, closed to the middle relay contact
(6) during alarm
2
–
closed to the middle relay contact (6) during no alarm,
open during alarm
3 –
pin for external input sensor connection
6 –
middle relay contact
7, 8 –
common (GND)
4, 5, 9 –
reserved (must not be used)
Alarm relay
(shown when no alarm present)
External input sensor
1
2
3
4
5
7
8
6
9
+5 V
Internal device circuits
Connector pin-out:
view from outside of the device
Fig. 8. Emergency alarm connector
External input sensor connected to the device must be isolated from other
electrical circuits. Failure to comply with this requirement may lead to device
malfunction.
Summary of Contents for FMUX/SAT
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