Page 5 - ABB_Welcome-Example-systems
P. 5
General instructions
• All wires must be connected to hardware at both ends, meaning that there will be no loose ends.
• Do not position the central unit near transformers or coils.
• Do not position the bus lines of the door entry system near 230V/380V cables.
• Do not use any other pairs of the bus line for controlling electronic locks.
• Only use one cable type for all bus lines.
• Only use one pair in multiconductor cables, i.e. no doubling or multiple connections.
• Use a twisted pair of at least 0.8 mm2 (e.g. KLMA 2 x 0.8 mm2).
• The bus voltage must be at least 21 V at the last device on the bus.
Explanation of symbols RC-ON Terminal resistor on
RC-OFF Terminal resistor off
Video/audio indoor unit
Indoor video distributor
VIDEO/AUDIO in
Outdoor unit D Outdoor video distributor
Electronic lock
Front door S Central unit
2 x KLM(A) 0.8 mm2 S Mini-sized central unit
Example systems | The ABB-Welcome door entry system 5
