Keithley 2657A

Section 3: Functions and features Model 2657A High Power System SourceMeter® Instrument Reference Manual
3-62 2657A-901-01 Rev. B/December 2012
Figure 60: SynchronousA output trigger
Synchronous trigger mode
The synchronous trigger mode is a combination of SynchronousA and SynchronousM trigger modes.
Keithley Instruments recommends using SynchronousA and SynchronousM modes only.
Input characteristics:
• The falling edge generates an input event and latches the internal drive low.
Figure 61: Synchronous input trigger
External Drive
Internal Drive
Physical Line State
Event
Stimulus Event
Action Overrun
Output Trigger
NOTE
External Drive
Internal Drive
Physical Line State
Event
Stimulus Event
Action Overrun
Input Trigger