CANDTU-200UWGR
CAN Bus Message Recording and Wireless Data Transmission Equipment User Manual
©2021 Guangzhou ZLG Microelectronics Technology Corp.,Ltd.
8
User Manual
SYS
Green flashing
The system is normal
Flash in red
System error
REC
Green normally on
The SD card is normal
Green flashing
The SD card has data written
Flash in red
The SD card has data written, and the
channel storage space is insufficient
Turn off
The SD card is not detected
4G
Flash quickly (100 ms
on/800 ms off)
Search the network
Slow flash (100 ms on/3000
ms off)
Registered Successfully
Fast flash (100 ms on/300
ms off)
Data transmission
Closed
No SIM card or registration failed
3.3 DB9 Interface, Flange Terminal Interface
3.3.1 Power INTERFACE
The rated voltage of the power input of the device is 7.5-48 V DC . Table 3.2, Table 3.3,
and Table 3.4 list the interface schematic diagram, signal definition, and interface
specifications.
Table 3.2 Power interface
Type
Schematic Diagram
Flange terminal
Table 3.3 Flange terminal signal definition
Function
interface
Signal
definition
Signal description
Power
supply
VIN
positive electrode of power
GND_IN
negative electrode of power
Table 3.4 Power interface specifications
Parameter Name
Conditions
Rating
Unit
Minimum
Typical value
Maximum
Working voltage
DC
7.5
48
V
Power
consumption
2.568
W
3.3.2 Switch Output Interface