Bosch APC-AMC2-4R4CF Installation Manual page 84

84 en | Installing Access Modular Controller 2
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 + R
S P
2. Door closed: R
S
3. Open wire: R + R = ∞
S P
4. Short circuit: R + R = 0
S P
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 and R
S 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.
2020-01 | V02 | Installation manual Bosch Access Systems V.B.