Vaisala PTB220 Series Guia do Utilizador descarregar pdf (Página 88)

USER'S GUIDE_______________________________________________________________________

82 ___________________________________________________________________ M210194EN-A

The next picture (below) shows a typical RS232C TX output signal

(upper signal) and TTL level serial TXD output signal (lower signal)

at baud rate 9600. The vertical scale is 5V/div for upper signal and

2V/div for lower signal. The ground level is shown with a small arrow

at the right. At the left, the signals are at rest.

The next picture (below) shows a typical RS232C TX output signal

(upper signal) and TTL level serial TXD inverted output signal (lower

signal) at baud rate 9600. The vertical scale is 5V/div for upper signal

and 2V/div for lower signal. The ground level is shown with a small

arrow at the right. At the left, the signals are at rest.

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Vaisala PTB220 Series Guia do Utilizador Página 88