REV Ritter AD 1010 Instrucciones De Instalacion Y Uso página 17

Concealed mounting:
Create a ,for the door intercom fitting,notch into the wall. The
frame must cover completly the notch. Meassure (see pic. 4)
then follow with point 2 of surface mounting.
Caution:
a frame for concealed mounting is not including and
not absolutely needed.
Abb. 4
80 mm
> 7 mm
ca. 40 mm
X Y
Laying and extending cables
The connecting cable (4) included must be laid to the fixing
point of the indoor station(s). Ensure there is enough length to
connect up once fitted. If an extension is needed, this can be
made using ordinary 2-core cable to a maximum of 70 metres in
all. Keep an eye out for any difference in colour of the cable.
Make a note of the colours on the extension cable and the cable
connectors(5) to avoid mistakes in connecting up to the indoor
station(s).The cabling colours of the connectors of the individual
wires of the connection cable (4) are given on the indoor station
terminals (6).
Note on AD 1020/1030:
2 core cable must be laid to each
indoor station.
16