Optocoupler Input (In1) - Conrad GX107 Bedienungsanleitung

12.2 Optocoupler Input (IN1)

The input IN1 is an optocoupler and used, e.g., for smoke detectors or burglary alarms (current
loops that are interrupted).
A voltage of 0 to 32 V can be connected to the input potential-free against the remaining circuit.
Observe correct polarity (plus/+ and minus/-)!
Without any external voltage (i.e. open) or with a voltage of less than 2 V, this input (IN1) is
recognised as a low level. If an external voltage in excess of 3.5 V is connected, the input (IN1)
is recognised as high. You can select when an alarm message is to be sent by text message
command. The corresponding LED is controlled directly by the hardware and indicates the
currently recognised condition.
Alarm message when changing from LOW=L to HIGH=H
SET IN1 LH #1513
Alarm message when changing from HIGH=H to LOW=L
SET IN1 HL #1513
Alarm message at any level change:
SET IN1 LHL #1513
Deactivate alarm via IN1:
SET IN1 OFF #1513
Reset to factory settings (LH):
RESET IN1 #1513
To test the input (IN1) stored in the "GX107", send the following text message command:
TEST IN1 #1513
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