GW Instek GDS-3000 Series DS3-SBD Serial Bus decode - Manual (Page 21)

MEASUREMENT
21
2. Choose Bus 1 or Bus 2 by pressing
the corresponding bus key, B1 or
B2.
3. Press Bus from the bottom menu
and choose the UART serial bus on
the side menu.
Define Inputs 1. Press Define Inputs from the bottom
menu.
2. From the side menu choose the Tx
Input and the Rx
Input source and the signal
polarity.
Tx OFF, CH1~4
Rx OFF, CH1~4
Polarity Normal (High = 0), Inverted (High
= 1)
Set the Threshold 1. Press Threshold from the bottom
menu.
2. Press Select from the side menu.
Choose Tx or Rx line thresholds.
Range Tx, Rx