38
DS1083-135
A jumper to be inserted in the line termination (Z) is present in apartment stations, distributors, column
distributors and column interfaces. Activate the termination for devices wired at the end of a line from
which another section does not start from the device terminals (end of line):
Z= ON
Z= OFF
LINE OUT
LINE IN
LINE 1
LINE 3
LINE 4
LINE 2
Z= ON
LINE 1
LINE 3
Z= OFF
LINE 4
LINE 2
Z= ON
LINE OUT
LINE IN
Z= OFF
LINE
OUT
LINE
IN
LINE
OUT
LINE
IN
LINE
IN
LINE 1
LINE 4
LINE 2
LINE 3
Z= ON
Z= OFF
Z= OFF
Z= ON
Z= ON
Z= ON
Z= ON
LINE IN
Z= OFF
Z= ON
1083/53
LINE OUT
LINE IN
LINE IN
Z= OFF
LINE OUT
From calling
station
Refer to the corresponding instruction booklets provided with the products for identifying the position of the
line termination jumper in the various devices.
Warning
The line terminal on/off jumper (Z) is not present on some video door phones (e.g. 1750/1, 1750/5, 1750/6,
1750/15, 1750/16 and 1760/6).
Consequently, the in-out connection can only be implemented by adding the Ref. 1750/50 accessory, which
must be installed in the device preceding the end-of-line device in the speci
fi
c housing on the back of the
video door phone.
LINE IN
LINE OUT
LINE 1
LINE 3
LINE 4
LINE 2
Z= ON
LINE IN
LINE 1
LINE IN
LINE IN
LINE OUT
+ 1750/50
Z= OFF
+ 1750/50
Z= OFF
Z= ON
LINE 3
LINE 4
LINE 2
Z= OFF
LINE IN
LINE OUT
LINE IN
ACTIVATING THE SYSTEM
Perform the following operations in order after wiring the devices:
1. Set up the line terminations.
2. Con
fi
gure the devices using the dip-switches.
3. Switch on power and check voltage.
4. Check the system.
5. Associate door unit button to users or program calling module name directory.
6. Run basic functional test.
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