cellphone cable and connector wiring scheme serial cable analog (original DKU-5 is an USB cable with complicated schematic).
9 pin D-SUB female connector to the computer’s cable
14 pin Nokia pop-port cell phone special connector to the mobile phone
Notes
- Rx is at Nokia pop-port pin 6
- Tx is at Nokia pop-port pin 7
- GND is at Nokia pop-port pin 8