Responsive. Ready. Rock star treatment.


For live, friendly, technical support please call us at 864-843-4343 or email support@sealevel.com

Glossary

AllABCDEFGHILMNOPRSTUVWZ
Search
Term Description
PNP A type of transistor often used as an on-off switch in electronic devices. A PNP switch usually sources current from a positive supply to a device at a lower potential.
Port A collection of signals that go to or from a computer for the input or output of information. For example, an 8-bit input port or a serial port.
Positive Logic A notation that indicates a logic 1 represents the active state for a signal.
Pull Down Resistor A resistor used to pull a logic input "down" to the low state, or logic-0 state, thus preventing a disconnected input from floating into an undetermined state.
Pull Up Resistor A resistor used to pull a logic input "up" to the high state, or logic-1 state, thus preventing a disconnected input from floating into an undetermined state.
Quick Links
Computing/HMI Serial I/O Accessories

 
Support Company
Our Story
Case Studies
Careers
 Community
Tom's Trivia
Suggest Ideas
Video Channel
Blog
Twitter
 News & Events
Press Releases
Events
Media Kit
 Email Signup
Be the first to know. Keep up-to-date on the latest Sealevel happenings by subscribing to our monthly newsletter.
Contact
864.843.4343 tel
864.843.3067 fax
support@sealevel.com
sales@sealevel.com
Sales & Privacy Policies
Proudly Made in the USA
© Copyright 1996 - 2010, Sealevel Systems, Inc. All rights reserved.