Page 222 - Advanced Course
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KNX ADVANCED COURSE














                  Figure 26: Sabotage zones

                  3.7.3  Lock Zones


                  Lock zones are secondary circuits without EOL resistors.















                  Figure 27: Lock zones

                  The normally open contacts of all strike plate contacts are included in the zone. When
                  using locking elements, the state of the element (open/closed) should be monitored and
                  included in the zone.


                  3.7.4  Set Zone

                  The set zone can be implemented as a primary circuit with an EOL resistor of 2.7 kΩ for
                  intruder alarm control units.
                  A short circuit or disruption of the set zone leads to the intruder alarm system being set.












                  Figure 28: Set zone

                  Alternatively, a resistor of 560 Ω can be connected in series in addition to the EOL resistor
                  of 2.7 kΩ.
                  The bridging of this 560 Ω resistor leads to the system being unset.



                  Home and Building Management Systems                                    KNX Association
                  Security Technology                 Security Technology_E1211a.docx           Page 29/32
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