2 System overview
© 2022 Interflex Datensysteme GmbH | IF Distributors | 06.22
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2.2 Connector board
Distributors of the series 75-90-2x1x are connected via I/O controller boards to terminals, door
openers and other I/O controller boards:
Installation
The I/O controller boards are mounted on connector boards 2 I/O controller boards are always
grouped on one connector board. The following figure shows the layout of (half) a connector board.
1
2
3
4
1
Connector board
2
I/O controller board
3
DIP switch for addressing the I/O
controller board
4
Fuse protection
Connections
GND
IN2
GND
IN1
1
2
3
4
5 6
7
8
9
11
12
13
14
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GND
BAT
V-
V+
Tx-
Tx+
COM+
COM-
VCC
REL-
REL+
GND
BAT
V-
V+
Tx-
Tx+
COM+
COM-
VCC
REL-
REL+
GND
IN2
GND
IN1
1
Power supply for terminal,
further internal connection with 4
2
RS485 connection, I/O controller boards
internal reconnection with 5
3
Power supply door opener,
further internal connection with 6
4
Power supply terminal, for further I/O
controller boards