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Electrical connection
PROFINET-IO cable assignments
MA 248 HOST / BUS IN
RD+
2
TD+ 1
4
RD-
Figure 7.3:
Notice for connecting the PROFINET-IO interface!
Ensure adequate shielding. The entire connection cable must be shielded and earthed. The
RD+/RD- and TD+/TD- wires must be stranded in pairs.
Use CAT 5 cable for the connection.
34
Twisted Pair
TD-
3
Twisted Pair
shielded cable
RJ45 - assignment and wire colors
Pin
Signal
1
TD+
2
TD-
3
RD+
6
RD-
HOST/BUS IN cable assignments on RJ-45 (shown here is the device connection)
TD+ (1)
TD- (2)
max. 100m
Wire color according
Name
Transmission Data +
Transmission Data -
Receive Data +
Receive Data -
MA
248i
RJ 45
RD+ (3)
RD- (6)
Wire color according
to PROFINET
yellow
orange
white
blue
1
8
to EIA T568B
white/orange
orange
white/green
green
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