Agilent Technologies InfiniiVision 4000 X-Series User Manual page 451

9 Press the
10 Press the Signal Type softkey and specify the signal type of the ARINC
11 Press the Auto Setup softkey to automatically set these options for
12 If the high and low thresholds are not set correctly by Auto Setup:
Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
• High — 100 kb/s.
• Low — 12.5 kb/s.
User Defined — press the User Baud softkey and enter the user- defined
•
speed value.
Back/Up key to return to the ARINC 429 Signals Menu.
429 signal:
Line A (non-inverted).
•
Line B (inverted).
•
Differential (A-B).
•
decoding and triggering on ARINC 429 signals:
• High Trigger Threshold: 3.0 V.
• Low Trigger Threshold: - 3.0 V.
• Noise Reject: Off.
• Probe Attenuation: 10.0.
• Vertical Scale: 4 V/div.
• Serial Decode: On.
• Base: Hex.
• Word Format: Label/SDI/Data/SSM.
•
Trigger: currently active serial bus.
• Trigger Mode: Word Start.
• Press the High Threshold softkey; then, turn the Entry knob to set the
high trigger threshold voltage level.
• Press the Low Threshold softkey; then, turn the Entry knob to set the
low trigger threshold voltage level.
The threshold voltage levels are used in decoding and will become the
trigger levels when the trigger type is set to the selected serial decode
slot.
MIL-STD-1553/ARINC 429 Triggering and Serial Decode
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