CANDTU-200UWGR
CAN Bus Message Recording and Wireless Data Transmission Equipment User Manual
©2021 Guangzhou ZLG Microelectronics Technology Corp.,Ltd.
10
User Manual
The switch output interface is used to output the alarm signal. Through the
configuration tool, configurable trigger events include record full, CAN bus error, and SD
card status abnormality. In addition, the relay can be configured to be normally open or
normally closed based on user needs.
3.3.3 Switching Value Input Interface
The device provides one channel digital input. The physical form of the interface is a
flange terminal. Table 3.9, Table 3.10, and Table 3.11 list the interface diagrams, signal
definitions.
Table 3.8 DI interface
Type
Schematic Diagram
Flange terminal
Table 3.9 Flange terminal signal definition
Function
interface
Signal
definition
Signal description
DI
DI_P
Positive pole of the digital input
channel
DI_N
Negative pole of the digital input
channel
Table 3.10 DI interface specifications
parameter
Conditions
Minimu
m
Typical
value
Maximu
m
Unit
Logic 0 signal
DC
0
3
V
Logic 1 signal
DC
5
24
V
Isolation voltage
Valid value
3750
V
设备
输入单元
DI_P
DI_N
用户电源
开关设备
Figure 3.3 DI network connection
