Electronic – How to make UART-UART cable

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I am software developer and I need to make cable to connect this http://lib.chipdip.ru/036/DOC001036112.pdf usb adapter (which I connect to USB port of my PC) to UART port of my A13 Olinuxino.

As I understand I must connect them this way:

UART(ADAPTER) : UART (A13)
ground(-) : ground(-)
plus(+) : plus(+)
RX : TX
TX : RX

Am I right?

Best Answer

A summary of @jdv and @DoxyLover's answer-as-a-comment:

UART(ADAPTER) : UART (A13)
    ground(-) : ground(-)
           RX : TX
           TX : RX

and no connection of either plus(+) pin: those are for powering the device, and since the OLinuXino has its own power, connecting the plus(+) pins could cause problems if the voltages are different.

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