is this scheme the real dku-2 cable for nokia cells?

[charlyiy]

hi, my question is if this page:
pinouts.ru/data/nokia_dku2_cable_pinout
shows up only the pin connection or if this is all the thing on the cable, if there is not any thing else to connect the nokia cell to the computer. or do i need a some kind of interface between the cell and the computer?.
txz...

[Andrew]

My sources says that this is enough for listed phones.