I-8124W DeviceNet Master API functions User’s Manual (V 1.6) 2021/10/04
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Moreover, to minimize the voltage drop over long distances, the terminal
resistance should be higher than the value defined in the ISO 11898-2. The
following table can be used as a good reference.
Bus Length
(meter)
Bus Cable Parameters
Terminal
Resistance
(Ω)
Length Related
Resistance
(mΩ/m)
Cross Section
(Type)
0~40
70
0.25(23AWG)~
0.34mm
2
(22AWG)
124 (0.1%)
40~300
< 60
0.34(22AWG)~
0.6mm
2
(20AWG)
127 (0.1%)
300~600
< 40
0.5~0.6mm
2
(20AWG)
150~300
600~1K
< 20
0.75~0.8mm
2
(18AWG)
150~300
Table 2.4 Relationship between cable characteristics and terminal resistance
