Providing outstanding electronic hardware and software engineering product development services


The CashAir system transports cash via a pneumatic tube system. The electronic control system interconnects terminal devices to the host controller via RS-485. PIN and cash amount entry is possible as well as operator PIN.

Significant design elements were:

  • Multi drop RS-485 network utilising master slave polled protocol.
  • LCD and keypad user interface
  • Extensive non-volatile data logging
  • DC motor control

Level 3, 25 King Street
Rockdale NSW 2216
Phone 9599 3255

Issue 160313