I-2533 User Manual (ver. 1.1, 2013/05/31) ------16
3.2 Fiber Selection & Fiber Length
The specification of fiber used to connect I-2533 is shown as following
table.
Table 3-3 Specification of Fiber
Type
Diameter
[μm]
(Core/Cladding)
Operating
Wavelength [nm]
Multi-Mode
50/125
62.5/125
100/140
850
I-2533 allows maximum 2 km fiber length for each kind of CAN baud.
Alought the maximum fiber length has no relationship with the CAN baud rate,
but the some attributions of fiber still influence it. Higher attenuation of fiber will
reduce the transmission distance. Users can use following table to know the
relationship between those two.
Table 3-4 The relationship between CAN baud rate and ideal fiber length
CAN Baud Rate [bit/sec]
Ideal Fiber Length [m]
1 M ~ 10 k
2000
Table 3-5 Attenuation & Fiber Length
Attenuation [dB/km]
Fiber Length [m]
2.8
< 2000
4
< 1500
By the way, when users use I-2533 in their application, they need to use
one pair of I-2533 for communication. The general application architecture
may look like as follows.
Figure 3-1 I-2533 general application architecture
