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Installation
MN05013005E
74
Calculating length with known cable cross-section
The maximum cable lengths are calculated for a known
conductor cross-section
l
max
= cable length in m
S
= minimum cable cross-section in mm
2
ρ
cu
= resistivity of copper, if not otherwise stated 0.018
Ω
mm
2
/m
Plugging and unplugging network cables
EZD is provided with two RJ45 network sockets.
The socket 1 in the first station is for the bus terminating
resistor. For other stations, socket 1 is used for plugging in the
incoming cable. Socket 2 is used for the outgoing cable or for
the bus termination resistor on the last physical station in the
network.
l
max
=
S
×
12.4
ρ
cu