A method, a baseboard management controller (BMC) and a system for establishing a serial-over-LAN connection are provided. The method includes: receiving data from a server unit using the first UART at a current baud rate; detecting the current baud rate of the first UART using the BMC; configuring the baud rate of the second UART of the BMC as the current baud rate; controlling the second UART to retrieve the data from the first UART at the current baud rate using the BMC; and sending the data to a network using the BMC.

A method, a baseboard management controller (BMC) and a system for establishing a serial-over-LAN connection are provided. The method includes: receiving data from a server unit using the first UART at a current baud rate; detecting the current baud rate of the first UART using the BMC; configuring the baud rate of the second UART of the BMC as the current baud rate; controlling the second UART to retrieve the data from the first UART at the current baud rate using the BMC; and sending the data to a network using the BMC.

A receiving device, includes a memory; and a processor coupled to the memory and configured to: when amplifying a multi-valued signal of a multi-valued modulation technique according to a control signal, acquire a first multi-valued signal before amplifying the multi-valued signal and a second multi-valued signal after amplifying the multi-valued signal, detect a first peak voltage of the first multi-valued signal, detect a second peak voltage of the second multi-valued signal, and control the control signal based on the first peak voltage and the second peak voltage such that a maximum amplitude of the second multi-valued signal and linearity of the second multi-valued signal are maintained.

A receiving device, includes a memory; and a processor coupled to the memory and configured to: when amplifying a multi-valued signal of a multi-valued modulation technique according to a control signal, acquire a first multi-valued signal before amplifying the multi-valued signal and a second multi-valued signal after amplifying the multi-valued signal, detect a first peak voltage of the first multi-valued signal, detect a second peak voltage of the second multi-valued signal, and control the control signal based on the first peak voltage and the second peak voltage such that a maximum amplitude of the second multi-valued signal and linearity of the second multi-valued signal are maintained.

A method, a baseboard management controller (BMC) and a system for establishing a serial-over-LAN connection are provided. The method includes: receiving data from a server unit using the first UART at a current baud rate; detecting the current baud rate of the first UART using the BMC; configuring the baud rate of the second UART of the BMC as the current baud rate; controlling the second UART to retrieve the data from the first UART at the current baud rate using the BMC; and sending the data to a network using the BMC.

A method, a baseboard management controller (BMC) and a system for establishing a serial-over-LAN connection are provided. The method includes: receiving data from a server unit using the first UART at a current baud rate; detecting the current baud rate of the first UART using the BMC; configuring the baud rate of the second UART of the BMC as the current baud rate; controlling the second UART to retrieve the data from the first UART at the current baud rate using the BMC; and sending the data to a network using the BMC.