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 V
DC
, low < 2.0 V
DC
Bitrate
Up to 1 Mbit/s
Termination
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
