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Configuring the System
ACQ-7700 / Type 3 Installation Manual
Auxiliary Connector (Preview Feature)
This is a 15 pin female D-shell connector. This 15 pin D-SUB provides connection
for the auxiliary functions.
Pin Signal Pin Signal
1
Reserved 9
Trigger
In
2
Reserved 10
Reserved
3
Reserved 11
Event
Out
4
Reserved 12
Alarm
Out
5
Reserved 13
Timer
Out
6
Reserved 14
Reserved
7
Reserved 15
Ground
8
Reserved
Aux. Port pin descriptions
Event Out
- If an event is triggered within P3 Plus, a TTL pulse will appear on this
pin.
Alarm Out
- If an alarm condition occurs, a pulse will appear on this pin. The pulse
is a TTL level pulse that lasts for the duration of the alarm condition. The alarm
condition duration is dependent on the logging rate set. The TTL pulse will last until
a logged line of data is reached where the alarm condition does not occur.
Timer Out
- If a timer reaches its final time, a TTL pulse will appear on this pin.
For a Timer Up configuration, once the timer reaches the set value, the pulse will
execute. For a Timer Down configuration, once the timer reaches zero, the pulse
will execute.
Trigger In
- If this pin is set to 0V, an external event (Event y) will be triggered in
P3 Plus. The recommended time that the pin should be set to 0V is approximately 1
second.
Power Connection
The only connection on the rear of the ACQ-7700 is the power receptacle.
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