400 Keysight InfiniiVision 3000 X-Series Oscilloscopes User's Guide
27 MIL-STD-1553/ARINC 429 Triggering and Serial Decode
1 Press [Label] to turn on labels.
2 Press [Serial].
3 Press the Serial softkey, turn the Entry knob to select the desired slot (Serial 1 or
Serial 2), and press the softkey again to enable decode.
4 Press the Mode softkey; then, select MIL-STD-1553 decode mode.
5 Press the Signals softkey to open the MIL-STD-1553 Signals Menu.
6 Press the Source softkey to select the channel connected to the MIL-STD-1553
signal line.
The label for the MIL-STD-1553 source channel is automatically set.
7 Press the Back/Up key to return to the Serial Decode Menu.
8 Press the Auto Setup softkey which performs these actions:
• Sets the probe attenuation factor of the input Source channel to 10:1.
• Sets upper and lower thresholds to a voltage value equal to ±1/3 division
based on the current V/div setting.
• Turns off trigger noise reject.
• Turns on Serial Decode.
• Sets the trigger type to MIL-1553.
9 If the upper and lower thresholds are not set correctly by Auto Setup, press the
Signals softkey to return to the MIL-STD-1553 Signals Menu. Then:
• 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.
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