ICP DAS USA I-2533CS-FD, Руководство пользователя

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I-2533CS-FD ( CAN/CAN FD to Single-mode Fiber Bridge ) User Manual (version 1.1.0) Page: 23
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3.2. Fiber Selection & Fiber Length
The specification of fiber cable used to connect the I-2533CS-FD is shown as
following table.
Table 3-2-1 Specification of Fiber
Type
Diameter [μm]
(Core/Cladding)
Operating
Wavelength [nm]
Single mode
8.3/125, 8.7/125,
9/125 or 10/125
1310
The I-2533CS-FD allows maximum 30km 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-2533CS-FD 10 k ~ 1M 100 k ~ 3M 30
Table 3-2-3 Fiber Attenuation & Fiber Length
Module Name
Fiber
Attenuation
[dB/km]
Allowed Fiber length
[km]
I-2533CS-FD
0.4 30
> 0.4 < 30