Bosch Appliances APC-AMC2-4WUS Home Security System User Manual


 
46 en | Installing AMC2 4W
F.01U.024.965 | V.4 | 2006.09 Installation manual Bosch Security Systems
To detect the four states there are only special values allowed
for potential drop depending on the used resistors. The follow-
ing table shows the values for the possible resistor combina-
tions.
5.13 Tamper Protection
To protect the AMC2 4W against unauthorized access and pre-
vent the AMC2 4W from tampering with sensitive data, the
AMC2 4W offers an additional interface to connect external
tamper contacts. This interface is a potential-free 2-pin plugga-
ble screw connector marked with T. If not using the tamper
contact, short-circuit the contacts with a wire connection.
R
P
1k 1k2 1k5 2k2 2k7 3k3 3k9 4k7 5k6 6k8 8k2
R
S
1k 0,21 0,23 0,26 0,32
1k2 0,20 0,23 0,26 0,32 0,35
1k5 0,20 0,23 0,25 0,32 0,35 0,39 0,41
1k8 0,19 0,21 0,24 0,31 0,34 0,38 0,41 0,44 0,47 0,50
2k2 0,20 0,23 0,30 0,33 0,37 0,40 0,43 0,47 0,50 0,53
2k7 0,18 0,21 0,27 0,31 0,35 0,38 0,41 0,45 0,49 0,51
3k3 0,19 0,24 0,28 0,32 0,35 0,39 0,42 0,46 0,50
3k9 0,23 0,26 0,29 0,32 0,36 0,40 0,43 0,47
4k7 0,20 0,23 0,26 0,29 0,32 0,35 0,39 0,42
5k6 0,20 0,23 0,25 0,29 0,32 0,35 0,39
6k8 0,19 0,22 0,24 0,27 0,31 0,33
8k2 0,18 0,21 0,23 0,26 0,29
Table 5.3 Maximum values of potential drop for the combination of resistors
i
NOTE!
It is recommended to choose the serial resistor (R
S
) not higher
than 5K6 to get clearly values.