Chengdu Ebyte Electronic Technology Co., Ltd.
NB144 User Manual
Copyright ©2012
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Chengdu Ebyte Electronic Technology Co., Ltd.
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upgrade is complete.
5.5.2 Serial upgrade
Only channel 1 (that is, serial port 1, which can use the RS232 interface / RS485 interface
/RS422 interface ) supports the upgrade using the serial port. When the network upgrade fails or the
network environment is complicated, it is recommended to use the serial port to upgrade;
Step 1: Make sure the device is powered off and connect to serial port 1 correctly;
Step 2: Open "Ebyte Network Configuration Tool", select "Serial Port Upgrade Assistant" under
the "Menu" option, select the corresponding serial port and click "Open Serial Port";
Step 3: Select the firmware to be used, which needs to be obtained from the "Related
