Wireless ward caller extension number setting circuit

The extension uses an 8-bit DIP switch to manually locate the extension's address. If you need to move the extension to another bed, you only need to change the state of the dial switch to change the extension number. The wireless ward caller extension number setting circuit is as shown:

Wireless ward caller extension number setting circuit

9000W Three Phase AC Source System

APM model SPS300VAC9000W 3 phase ac power source system is able to provide not only stable DC/AC output power,but also 3-phase / 1-phase output.The 3 phase AC Power Supply is with high speed DSP+CPLD control, high frequency PWM technology, active PFC design. Reliable ac sources for applications such as electric, lighting, aviation sectors, enterprise`s production test etc.

Some features as below:


  • 5.6`` large touch color screen, possess complete functions and easy to operate.
  • Support for USB data import/export and screen snap from front panel.
  • AC+DC mixed or independent output mode for voltage DC offset simulation.
  • Capable of setting voltage and current output restriction, support for constant current output mode.
  • Capable of setting output slope of voltage and frequency.
  • Capable of setting ON/OFF phase angle.
  • With reverse current protection to avoid current flowing backward.
  • Built-in power meter, which is capable of measuring 5 electrical parameters per phase, including voltage, current, power, etc.
  • Support mA current measurement function.


8100W Three Phase AC Source System,System For Three Phase,Three Phase Power,Three Phase Power Supply

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