Digitools Ky Atmel AT89C2051 based vibration motor tester for quality control of Nokia mobile phones, RS-232, model 2

This is an old and interesting piece of hardware, which is developed and made by Digitools Ky for Nokia mobile phones manufacturing quality control. As far as we understand this unit has been hooked up into an assembly cell and performed an automated testing of vibration motors. The unit has RS-232 interface in order to communicate with the rest of the PLC. Tester has Atmel AT89C2051 microcontroller as a main brains and Atmel AT24C64N microcontroller for some other purposes. Sipex SP232ACN is responsible for RS-232 communication. In general we have no precise idea if/how this tester works but eventually what is programmed in one way, might be possible to reprogram in another way. Perhaps someone will manage to repurpose this into his project to do something.

Tester technical details:

• Operating voltage:
  • 24VDC
• Labeled connections:
  • Output:
    • 1
    • 2
    • 3
    • +
  • Input:
    • 1
    • 2
    • -
  • Rpm-Ind:
    • +
    • 0
    • -
  • 24Vdc:
    • +
    • -
  • Motor:
    • +
    • -
  • RS232:
    • Txd
    • Rxd
    • -
• Assembled into Phoenix Contact UMK-series DIN-rail mount, Differing from the picture the other DIN-rail mounting leg is missing.
• This model is missing it's screw terminal's removable pieces. Although handy person just tackles this with a soldering iron.

Download Atmel AT89C2051 microcontroller technical datasheet