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32 Electrical installation
Pin allocation
The following tables list the pins of connectors X1, X2 and X3 of FDPI-02.
X1
Dir.
1.
A
In/Out
2.
B
In/Out
3.
NC
In
4.
NC
In
5.
GND
-
6.
VCC
In
X2
Dir.
1.
A
In/Out
2.
B
In/Out
3.
LED1
Out
4.
LED2
Out
5.
GND
-
6.
GND
-
7.
GND
-
8.
VCC
Out
X3
Dir.
1.
A
In/Out
2.
B
In/Out
3.
NC
-
4.
NC
-
5.
GND
-
6.
GND
-
7.
GND
-
8.
NC
-
Description
Transmit / receive differential - signal (RS-485)
Transmit / receive differential + signal (RS-485)
LED driver input, open collector
LED driver input, open collector
Ground
15 V DC in
Description
Transmit / receive differential - signal (RS-485)
Transmit / receive differential + signal (RS-485)
LED driver input, open collector
LED driver input, open collector
Ground
Ground
Ground
15 V DC out
Description
Transmit / receive differential - signal (RS-485)
Transmit / receive differential + signal (RS-485)
Not connected (reserved for LED1 / /TRANS)
Not connected (reserved for LED1 / /TRANS)
Ground
Ground
Ground
Not connected (reserved for 15 V DC VCC)
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