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Praesideo 3.5 | Installation and User Instructions | 6 | Installation Accessories
26.3.4 Connecting control inputs
The fiber interface has two control inputs (see
figure 26.7). The control inputs can be used to receive
signals from third party equipment that must trigger
actions within the Praesideo system. The control inputs
can be configured to act on contact make or on contact
break (see section 43.6).
figure 26.7: Control inputs connector
table 26.3: Control inputs connector details
Pin
1
2
3
4
table 26.4: Control inputs technical data
Control input 1 and control input 2
Resistance detection (supervision enabled):
Cable short circuit
< 2.5 kohm
Contact closed
7.5 kohm to12 kohm
Contact open
17.5 kohm to 22 kohm
Cable broken
> 27 kohm
Resistance detection (supervision disabled):
Contact closed
< 12 kohm
Contact open
> 17.5 kohm
Bosch Security Systems | 2011-02
1 2 3 4
Signal
Input Contact 1
Input Contact 1, ground
Input Contact 2
Input Contact 2, ground
It is also possible to have the cables supervised for
short-circuits and open connections (see figure 26.8 and
figure 26.9). Whether a control input is actually
supervised or not is defined in the configuration.
10kΩ
figure 26.8: Supervised control input
Caution
Do not connect DC or AC signals to the control
inputs, otherwise the input circuit may be
damaged.
figure 26.9: Non-supervised control input
en | 273
10kΩ
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