Interflex Datensysteme GmbH
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4.4 Connecting the I/O controller board
1
Cable to IF-80x Outdoor terminal
5
RS485 data cable
2
Address switch
6
Control line with 2 floating inputs and 1 relay output.
Max. switching power: 30 V, 2 A
3
Here, the power supply is connected with one line
pair each.
7
Relay output. Here, the cable is connected with one line
pair each.
4
Cable to power supply. Connection voltage: 18 to
max. 24 V AC/DC
8
Functional grounding and shield are connected to a
terminal together.
Since the cable run to the IF-80x Outdoor terminal is usually very long, we
recommend connecting the power supply and the relay contact with one cable pair each.
4.5 Connecting a further I/O controller board
If more than two inputs or more than one relay are required, you can connect a second I/O controller board
(order no. 75-700-0141).
Remove jumper Br.1 on the second I/O controller board.
Please keep in mind that the total length of the COM cable is limited to a maximum of 100 m.
Reduce the length of the COM cable, if necessary, to ensure that the total length of 100 m is not
exceeded.
Example:
The IF-80x Outdoor terminal is connected to I/O controller board 1 by a 30-meter-long cable. The cable for
the connection of I/O controller board 2 may not be longer than 70 m.
