Button is possible connecting up to 100m and is possible conecting
moore butons „switch on“ paralel or „switch off“ buttons serial. Control of type
buttons use is possible programming by parameter 6# 1 or 0. System of push
button is wired in current loop and by jumper is select from is loop powered.
Attention
- button is galvanic connect with source power of current
loop and isolated from line by optocoupler. In case powered current loop from
telephone line is button galvanic connect with telephone line.
Picture 5 : connection block of call
The screw mark BLOCK (picture 5) is designed for blocking of button for
emergency call. Input is isolated from other parts of NLLW and not depends on
polarity. In configuration you can select if BLOCK input is activated by leading
of voltage 5-24V or by disconnection of this voltage.