I-2533 User Manual (ver. 1.1, 2013/05/31) ------15
3 Network Deployment
3.1 Driving Capability
Before introducing the driving capability of I-2533, some characteristics of
copper cable must be assumed. The AC parameters are 120
Ω impedance and
5 ns/m line delay, and the DC parameter follows the table shown below.
Table 3-1 Recommended DC parameters for CAN Bus Line
Wire Cross-Section [mm
2
]
Resistance [Ω/km]
~0.25
(AWG23)
< 90
~0.5 (AWG20)
< 50
~0.8 (AWG18)
< 33
~1.3 (AWG16)
< 20
Under the conditions described above, users can refer to the following
table to know the maximum node numbers in each segment following ISO
11898-2 and the maximum segment length when using different type of wire.
Table 3-2 Driving Capability
Wire Cross-
Section [mm2]
The maximum segment length [m] under the
case of specific node number in this segment
16 Nodes
32 Nodes
64 Nodes
100 Nodes
~0.25 (AWG23)
< 220
< 200
< 170
< 150
~0.5 (AWG20)
< 390
< 360
< 310
< 270
~0.8 (AWG18)
< 590
< 550
< 470
< 410
~1.3 (AWG16)
< 980
< 900
< 780
< 670
