I-7540D-WF CAN to Wi-Fi Converter User’s Manual (Ver. 2.0, Jan/2012) ------------- 21
lines. How to decide a cable type, cable length, and terminator depends
on the baud rate in the CAN bus network, please refer to the following
table 2-5.
Figure 2-18: Un-shielded Twisted Pair (UTP)
Table 2-5: Cable selection
Bus speed
Cable type
Cable
Resistance/m
Terminator Bus Length
50k bit/s
at 1000m
0.75~0.8mm2
18AWG
70 mOhm
150~300
Ohm
600~1000m
100k bit/s
at 500m
0.5~0.6 mm2
20AWG
< 60 mOhm
150~300
Ohm
300~600m
500k bit/s
at 100m
0.34~0.6mm2
22AWG, 20AWG
< 40 mOhm
127 Ohm
40~300m
1000k bit/s
at 40m
0.25~0.34mm2
23AWG, 22AWG
< 40 mOhm
124 Ohm
0~40m
Note: The AWG means a standard method used to measure wire. The
numbering system works backwards from what people would think, the
thicker (heavier) the wire, the lower the number. For example: a 24AWG
wire is thicker/heavier than a 26AWG wire.
