# psion_pccard_network

### PC Card Adapter Flow

Psion --> rs232 --> max3243cai --> ttl --> Siemens CAB C165 LF --> PCMCIA

### Notes
* The C165 does not have hardware flow control pins (just rx/tx) so must bit-bang the flow control.
* The cable has 10 pins and is socketed - looks like molex
* Cable wires:
  * Black (sheathed)
  * Blue
  * Brown
  * Red
  * White
  * Yellow
  * Black
  * Green
  * Orange
  * Red/White
* Looks like there are 2 extra wires in the cable that aren't used and cut down.

### ToDo
* Identify wires
  * First will just continuity test against the max3243
  * https://hackaday.io/project/161291-the-last-psion/log/157679-striving-for-simplicity-a-psion-serial-honda-to-usb-cable


### Links
* https://hackaday.io/project/161291-the-last-psion/log/157679-striving-for-simplicity-a-psion-serial-honda-to-usb-cable
* https://www.cloudcube.info/2025/03/27/diy-psion-series-5mx-serial-cable-at-a-relatively-low-cost/
* http://www.ericlindsay.com/epoc/comm3.htm$0