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Installation
MN05013005E
72
Table 5:
Prefabricated cables, RJ45 plug on both ends
Material for self-manufactured cables
100 m 4
×
0.18 mm
2
: EZ-NT-CAB
Bus termination resistor
The first and last stations in the network must be provided with
a bus termination resistor.
• Value: 124
Ω
• Termination connector: EZ-NT-R
Cable length and cross-sections
For correct operation of the network the cable lengths, cross-
sections and cable resistances must correspond to the
following table.
The surge impedance of the cables used must be 120
Ω
.
Cable length
Type designation
cm
30
EZ-NT-30
80
EZ-NT-80
150
EZ-NT-150
Cable length
Cable resistance
Cross-section
m
m
Ω
/m
mm
2
AWG
up to 40
140
0.13
26
up to 175
70
0.25 to 0.34
23, 22
up to 250
60
0.34 to 0.5
22, 21, 20
up to 400
40
0.5 to 0.6
20, 19
up to 600
26
0.75 to 0.8
18
up to 1000
16
1.5
16
J
With cables >500 m it may be feasible to install a fiber optic
run.