Urmet 1083 Notice page 14

SYSTEM POWER
The following must be taken into consideration for calculating the number of power supply units in the
system:
• Single column system with 1 or 2 door units and 32 name tags each, up to 127 apartment stations, 1
column interface: 1 power supply unit.
If the door unit has more than 32 name tags, a Ref. 9000/230 or Ref. 9000/110 transformer is needed to
illuminate the button modules. In this case, disconnect the connection between the "ILL" terminals of the
calling station and the button module.
• System with 32 columns (32 column interfaces): add 1 power supply unit for each column.
• System with more than one main calling station and door unit interface: add one power supply unit.
Max. 128 apartment
stations per column
2Voice
power supply
2Voice
power supply
14
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Max. 128 apartment
stations per column
2Voice
power supply
LINE OUT
LINE IN
1 2 3 4 IN1
LINE
column
interface
IN0
LINE IN LINE OUT
LINE OUT
LINE IN
1 2 3 4 IN1
LINE
IN0
column
interface
Max. 128 apartment
stations per column
TC
TC
2Voice
power supply
LINE OUT
LINE IN
1 2 3 4 IN1
LINE
column
interface
IN0
LINE IN LINE OUT
DS1083-029E