CANDTU-200UWGR
CAN Bus Message Recording and Wireless Data Transmission Equipment User Manual
©2021 Guangzhou ZLG Microelectronics Technology Corp.,Ltd.
9
User Manual
The device provides one channel digital output. The physical form of the interface is a
flange terminal. Table 3.5, Table 3.6, and Table 3.7 list the interface diagrams, signal
definitions, and interface specifications.
Table 3.5 DO interface
Type
Schematic Diagram
Flange terminal
Table 3.6 Flange terminal signal definition
Function
interface
Signal
definition
Signal description
DO
DO_P
Positive pole of the digital
output channel
DO_N
Negative pole of the digital
output channel
Table 3.7 DO interface specifications
parameter
Conditions
Minimu
m
Typical
value
Maximu
m
Unit
Contact load
DC 3A, resistive
30
V
Contact load
AC 3A, resistive
250
V
Contact Resistance
DC 1A, 24V
0.1
Ω
Isolation voltage
Valid value
4000
V
设备
输出单元
DO_P
DO_N
用户电源
用电设备
Figure 3.2 DO network connection
The switch output interface is a relay output type, and the interior is a relay contact.
The output control circuit is not limited by voltage and polarity, and can be 24 V DC or 220
V AC. Since it is a dry contact output, users need an external power supply to supply
power to alarm devices (such as buzzers). Figure 3.2 shows the connection.
