Bosch APC-AMC2-4R4CF - Page 84

84 en | Installing Access Modular Controller 2
2020-01 | V02 | Installation manual Bosch Access Systems V.B.
Figure4.80: Location of the analog input connectors
The AMC2-4R4 can also detect the wiring conditions ‘short circuit’ and ‘broken’, and hence
trigger an alarm if the appropriate devices are connected.
1. Door open: R
S
+ R
P
2. Door closed: R
S
3. Open wire: R
S
+ R
P
= ∞
4. Short circuit: R
S
+ R
P
= 0
The resistor values can vary and depend on the used lock system.
The extension package includes 2,2 kΩ resistors which can be used to replace R
S
and R
P
resistor.
The AMC2-4W can also detect the wiring conditions ‘short circuit’ and ‘broken’, and hence
trigger an alarm if the appropriate devices are connected.