Measurement Computing WavePort rev.3.0 - Manual (Page 139)

WavePort User’s Manual 04-28-00 Glossary xiii
Single-ended mode
Measurement of a voltage between a signal line and some reference that may be shared with other channels.
(Also see differential mode).
Trigger
An event to start a scan or mark an instant during an acquisition. A trigger can be a TTL signal, a specified
signal level, a button manually or mechanically engaged, or a software command.
TTL
Transistor-Transistor Logic (TTL) typically used to communicate logic signals where a logical 0 is defined by a
voltage level of <0.8V and logical 1 is defined as 2.4-5V.
Unipolar
A range of analog signals between zero and some positive value (e.g., 0 to 10 V).