2 System overview
© 2022 Interflex Datensysteme GmbH | IF Distributors | 06.22
7
1.7 Cable lengths and cable types
Cable function
Max. length
Recommended cable type
230 V AC power supply to power supply unit (if not
pre-installed)
NYM 3 x 1.5 mm
2
Network cable: RJ45 patch cable, preferably
shield braiding
100 m
From category 5
Control cable (floating sensors)
100 m
J-Y(St) Y 2 x 2 x 0.6 mm
2
J-Y(St) Y 2 x 2 x 0.8 mm
2
RS-485 bus cable to end devices
1200 m
J-Y(St) Y 2 x 2 x 0.6 mm
2
J-Y(St) Y 2 x 2 x 0.8 mm
2
Connecting cable between I/O controller board
and terminal
100 m
J-Y(St) Y 4 x 2 x 0.6 mm
2
J-Y(St) Y 4 x 2 x 0.8 mm
2
In long cables, voltage losses can impair the functionality of the connected device. Therefore, do
not use cables longer than specified in the table. Wire the
+5 V
and
GND
lines with two cores each
for a cable length > 50 m.
2 System overview
2.1 Distributors
The layout of the IF distributors is exemplified as follows:
Item
number
Power
supply
IF-4072
Controller
Number of
I/O controller boards
75-90-0001
Internal
No
0
75-90-1111
Internal
No
2
75-90-1211
Internal
No
2
75-90-1212
Separate power supply
unit
No
2
75-90-1411
Internal
No
4
75-90-1412
Separate power supply
unit
No
4
75-90-1811
Internal
No
8
75-90-2211
Internal
yes
2
75-90-2401
Internal
yes
0
75-90-2411
Internal
yes
4
