Fluke 281 User Manual page 89

Each channel is selected in turn using the channel SETUP keys and set using the mode
soft-key. The mode changes between disabled and enabled with alternate key
presses.
Pressing the front panel MAN HOLD key stops the waveform at the current level on all
enabled channels; pressing MAN HOLD a second time restarts the waveform from that
level. If the ARB HOLD INPUT screen is currently selected the status field will
change from no hold to manual hold while the waveform is paused.
A logic low or switch closure at the rear panel HOLD IN socket also stops the waveform
at the current level on all enabled channels; a logic high or switch opening restarts the
waveform from that level. If the ARB HOLD INPUT screen is currently selected the
status field will change from no hold to ext hold while the waveform is
paused.
ARB HOLD INPUT:
status: no hold
mode: disabled
Waveform Hold in Pulse and Pulse-Train Modes
Pulse and Pulse-trains
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