User's Guide 24-Port Fast/Gigabit Ethernet Smart Switch ES-5224R+, ES-5224RF+, ES-5224RE+, ES-3124RE+

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4. Adjust the settings of the communication port.
4.1 Select the using by connect interface such as
COM1,COM2
4.2 Select the Bits per second at “9600
4.3 Set the flow control value as “None”.