43
EN
10-506
5.4. Jumpers J1: adjusting the polarity of the microphone
By default, the intercom is set to microphone without polarity.
▶
Attach the two jumpers J1 as required for the installation to the
two contacts:
Microphone without polarity
Specific microphone with polarity (- at C2)
Specific microphone with polarity (+ at C2)
1
jumper J1
Image 4: factory setting J1: microphone without polarity
5.5. Jumper J2: disconnecting C1 – C2
By default, the intercom is set to the common wire C1 and C2.
▶
To disconnect the wires C1 and C2, attach jumper J2 to the two
contacts on the left (image 5).
2
jumper J2
Image 5: factory setting J2: C1 – C2 connected
5.6. Setting volume of the receiver
The volume of the receiver can be set with 3 controls. These controls
can also be set separately. Controls 3, 4, 5 are available when the
device is on.
▶
Use a small screwdriver to turn the controls.
▶
Would you like to increase the volume or the impedance? Turn the
controls clockwise.
3
Volume control loudspeaker in the receiver
4
Microphone impedance control
5
Volume control microphone in the receiver
Image 6: Set the ringtone volume