User`s guide

4 Triggering
132 InfiniiVision Oscilloscopes User’s Guide
Setup for MIL-STD 1553 Signals
To set up the oscilloscope for MIL-STD 1553 signals:
1 In the front panel Trigger section, press [More].
2 In the More Trigger Menu, press Trigger; then, select the MIL-1553 trigger type.
3 Press Settings.
4 In the MIL-STD-1553 Trigger Settings Menu:
•Upper Ch — selects the channel used for the upper threshold. Because defined pairs
of channels are used for upper and lower thresholds (either channels 1 and 2, or
channels 3 and 4), this softkey also selects the channel for the lower threshhold.
•Lower Ch — shows the channel selected for lower thresholds.
•Auto Setup — performs these actions:
• Copies the Upper Threshold Channel position and volts/div settings to the Lower
Threshold Channel.
• Sets both the Upper Threshold Channel and the Lower Threshold Channel probe
attenuation to 10:1.
• Sets the Upper Threshold Channel trigger level to 500 mV and the Lower Threshold
Channel trigger level to -500 mV.
• Turns off trigger noise reject.
• Turns on Serial Decode.
• Sets the trigger type to MIL-1553.
These sofkeys appear in both the Trigger Menu and the Serial Decode Menu.