User's Manual

2
It has the following features:
⚫ Compact and easy-to-install design
⚫ Moisture proof, anti-interference design
⚫ Voltage range +5 to 35 V DC, meeting industry requirements
⚫ Industry-level temperature range: -40℃ to +70℃
Figure 1-2 shows the hardware structure of InDTU332N.
Figure 1-2 hardware structure
1.2.2 Software Functions
InDTU332N implements wireless data communication between the serial port device
in the remote station and the central control system. The main functions are as
follows:
Table 1-1
Basic functions
Function Description
Network
InDTU332N support eMTC/NB-IoT (LTE Cat M1/NB1)
Serial port Special configure tool is DTU Tool, can configure DTU by any of serial port
Status Displays running status using LED.
Mounting mode wall-mounting
Data transparent
transmission
Transmits application data transparently in two directions.
Long connection DTU will actively dial up and establish a PPP link.
Short connection
DTU does not actively dial up and establish a PPP link. According to
different configurations, there will be different activation policies, and
dialing and networking will start after activation.
Local data active
In short connection mode, the network can be activated via local data
transmission when the device is in hibernation
Phone active
In short connection mode, when the device is in hibernation, the network
can be activated by phone call.
InDTU332N does not support this feature.