Low Active Input Mode - inout S-01 User Manual

6.3 Low active input mode.

IMOD=1
Low-active input mode or with contact normally closed.
N.B. this management mode operates in the opposite way to the previous one; the
inputs reproduce the messages when they are not active.
The following modes can be used to supply the inputs:
 Connecting the COM IN pin to an external power supply line between 5 and 12V dc.
To activate the input disconnect it from GND of the power source.
 Connecting the COM IN pin to GND of external power supply. In order to activate
the messages, disconnect the input from the positive voltage.
If there is no external voltage, the COM IN can be connected to the +12V terminal. The
input is activated by disconnecting it from GND of the device.
 Using the buttons 1-8 on the front panel.
IMPORTANT
working in negative logic, the unused logic inputs must also be activated with
straps on the connector (e.g. with no input connected, the Security Player plays the
255.mp3 file).
User manual S-01 v.
:
1.3
Pag. 13