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2011-02 | Installation and User Instructions | 5 | Call Stations
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.
PTT Input
10 kΩ
Contact
5V
GND
figure 21.8: Press-to-talk (PTT) key
+5V, 30 mA
R
3
4
62V
PI
= Power Indicator
FI
= Fault Indicator
CI
= Call Indicator
SPI
= System Priority Indicator
SEI
= System Emergency Indicator
figure 21.9: Externally powered LED
Bosch Security Systems | 2011-02
10 kΩ
10 kΩ
R
5
FI
PI
6
62V
R = 330 Ω
R
Output X, IN
GND
figure 21. 1 0: Externally powered LED
Output X, IN
GND
figure 21. 1 1: Externally powered relay
R
7
CI
8
62V
62V
I < 100 mA
I < 100 mA
R
R
9
SPI
10
62V
en | 246
Max. 56V
Max. 56V
11
SEI
12
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