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Bosch Security Systems | 2011-02
2011-02 | Installation and User Instructions | 5 | Call Stations en | 246
It is possible to connect the following to the control
inputs/outputs connector:
• Press-to-talk (PTT) key. See figure 21.8 for a
connection diagram. The two resistors must be
placed in the circuit, because the contact is always
supervised by the system software.
• Internally powered lamp or LED. See figure 21.9 for
a connection diagram.
• Externally powered lamp or LED. See figure 21.10
for a connection diagram.
• Externally powered relay. See figure 21.11 for a
connection diagram.
figure 21.8: Press-to-talk (PTT) key
figure 21.9: Externally powered LED
GND
5V
PTT Input
Contact
10 kΩ
10 kΩ
10 kΩ
+5V, 30 mA
62V 62V
R
3
4
6
8
7
10
9
12
11
5
PI
FI
CI SPI SEI
R
62V
R
62V
R
62V
R
PI
FI
CI
SPI
SEI
= Power Indicator
= Fault Indicator
= Call Indicator
= System Priority Indicator
= System Emergency Indicator
R = 330 Ω
figure 21.10: Externally powered LED
figure 21.11: Externally powered relay
Max. 56V
Output X, IN
R
GND
I < 100 mA
Max. 56V
I < 100 mA
Output X, IN
GND