V92 modem function

The English language of the modem is MODEM, which is used as a "translator" for analog and digital signals. There are two types of electronic signals, one is "analog signal" and the other is "digital signal". The telephone line we use transmits analog signals, and the digital signals are transmitted between PCs. So when you want to connect your computer to the Internet via a telephone line, you must use a modem to "translate" two different signals. After connecting to the Internet, when the PC sends information to the Internet, because the telephone line transmits an analog signal, it is necessary to use a modem to "translate" the digital signal into an analog signal before it can be transmitted to the Internet. This process is called "modulation." ". When a PC obtains information from the Internet, since the information transmitted from the Internet through the telephone line is an analog signal, the PC

To understand them, you must also use the modem to "translate". This process is called "demodulation." In general, it is called "modulation and demodulation.

DC Power Supply

With APM`s latest technologies, SP series programmable dc power supply offers high efficiency, high precision ,high stability ,low ripple with full featured power test solution. The switch mode power supply gives you just the right performance at just the right price.

From 600W to 4kW ,the whole series includes variable voltage power supply, equipped with a flexible auto-ranging output stage, maximum output voltage and current is up to 800V and 200A respectively.

Some features of the dc power supply as below:


  • Ultrafast respond time and high efficiency
  • Accurate voltage and current measurement capability
  • Constant Power and wide range of voltage and current output
  • Equips with LIST waveform editing function
  • Compliant with SCPI communication protocol
  • Support RS232/RS485/LAN/USB (standard) ,GPIB (optional)
  • Master/Slave parallel and series operation mode for up to 10 units
  • Built-in standard automobile electrical testing curves
  • Full protection: OVP/OCP/OPP/OTP/SCP
  • Voltage drop compensation by remote sense line.
  • Have obtained CE,UL,CSA,FCC.ROHS


DC Power Supply,AC DC Power Supply,12V DC Power Supply,48V DC Power Supply,High Power DC Power Supply

APM Technologies Ltd , https://www.apmpowersupply.com

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