Interflex Datensysteme GmbH 15/23
18.1.4 Connection of an Interface Expander to an IF-57xx Terminal
Example: An IF-5735 master terminal is connected to
an I/O controller board with an Interface expander.
The IF-5735 master terminal can control both inputs
and the relay via this I/O controller board (3).
Thus, a further terminal - in this case an IF-800 - can
be connected to the RS485 bus (4) of the Interface
Expander.
1 Interface expander. The RS485 bus on terminals 2
and 3 may not exceed the maximum length of 100 m.
5 I/O controller board for an additional IF-800 terminal.
This I/O controller board must be installed in a
secured area. Power is supplied via the power
transformer (8).
2 IF-57xx master terminal 6 Terminal strip board
3 Via this I/O controller board, both of the inputs and
the relay are controlled. This I/O controller board
must be mounted in a secured area. Power is
supplied via the COM interface.
7 IF-800 terminal
4 RS485 bus. The max. length may not exceed 100 m.
8 230 VAC power transformer for the power supply of
the I/O controller board (5). The voltage amounts to
18-24 VAC or 18-24 VDC.
18.1.5 Technical Specifications of the Interface Expander Board
Supply voltage via IF-57xx master terminal
Dimensions (L x W) 20.5 mm x 38 mm
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