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4+N SYSTEMS
For 4+n (5 wires) systems, put all the jumpers JP1÷JP5 in position "5", as shown in the photo (standard
confi guration):
SPK
MIK
In case of traditional speech signal, set the trimmers MIK and SPK as shown in the photo.
In case of electronic speech signal, rotate all the trimmer SPK clockwise.
1+N SYSTEMS
•
Leave the jumper JPC in "+" position.
For 1+n (2 wires) systems, put all the jumpers JP1÷JP5 in position "2", as shown in the photo:
SPK
MIK
Rotate all the trimmer SPK clockwise.
Rotate the trimmer MIK at about central stroke position.
CALL BY BUZZER
Put the jumper JPA in position "R".
JPA
DS90330-004B
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