NBB-800
User Manual for NRSW version 4.5.0.100
3.4.12. 2xCAN Shield
The 2xCAN Shield has the following specification:
Feature Specification
Features 2x CAN V2.0B
Signals CANH, CANL
Signal Level High > 2.75 VDC, low < 2.0 VDC
Bitrate Up to 1 Mbit/s
Termination
2
No internal bus termination
On request: 120 Ω configurable by software
Bus access Passive (read access only
On request: write access
Connector type 8 pin terminal block header 3.5mm
Table 3.19.: Specification of 2xCAN Shield
Pin Assignment
Pin Signal
V+ V+
V− V−
1 CAN1_H
2 CAN1_L
3 GND
4 CAN2_H
5 CAN2_L
6 GND
Table 3.20.: Pin Assignments of 2xCAN Shield
Note: Cables with length >30m must be shielded.
2
Note: On each end of the CAN bus is a 120 Ω termination mandatory
25
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