Page 6 - ABB_Welcome-Example-systems
P. 6

Connection in series

2 x KLM(A) 0.8 mm2

         RC-ON                                                             RC-ON

VIDEO/AUDIO                                                         VIDEO/AUDIO

        RC-OFF                                                              RC-OFF

VIDEO/AUDIO                                                         VIDEO/AUDIO

        RC-OFF                                                              RC-OFF

VIDEO/AUDIO                                                         VIDEO/AUDIO

        RC-OFF                                                              RC-OFF

VIDEO/AUDIO                                                         VIDEO/AUDIO

                    D in
                          RC-ON

Door entry system   S
switching exchange

             S

The central unit can supply approximately 40 devices. If each
outdoor unit has an auxiliary power source, the maximum number
of devices is approximately 60. In larger systems, the devices are
divided into areas of suitable size with a line coupler. The exact
numbers of devices and the required auxiliary power sources de-
pend on the cable lengths and types, as well as other conditions.

6 The ABB-Welcome door entry system | Example systems
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