I-2533T-FD ( CAN/CAN FD to Multi-mode Fiber Bridge ) User Manual (version 1.0.0)
Page: 23
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3.2. Fiber Selection & Fiber Length
The specification of fiber cable used to connect the I-2533T-FD is shown as
following table.
Table 3-2-1 Specification of Fiber
Type
Diameter [μm] (Core/Cladding)
Operating
Wavelength [nm]
Multi-mode
50/125, 62.5/125 or 100/140
(62.5/125 recommended)
1310
The I-2533T-FD allows maximum 2km fiber length for each kind of CAN baud
theoretically. Although the maximum fiber length has no relationship with the CAN baud
rate, but some fiber attributions, such as attenuation, still influence it. Higher attenuation
of fiber will reduce the transmission distance. User can use following table to know the
relationship between those two.
Table 3-2-2 The relationship between CAN baud rate and theoretical Fiber length
Module Name
Arbitration
bit rate (bps)
Data Phase
bit rate (bps)
Allowed Fiber length
[km]
I-2533T-FD
10 k ~ 1M
100 k ~ 10M
2
Table 3-2-3 Fiber Attenuation & Fiber Length
Module Name
Fiber
Attenuation
[dB/km]
Allowed Fiber length
[km]
I-2533T-FD
3.5
2
> 3.5
< 2
