Every industry has its own technical terms and common phrases that are understood by those who work in the industry but can be confusing for outsiders.
The term “sallyport” could be considered one of those terms that is not always familiar to everyone, but once its use is explained, is quickly understood. The term “sallyport” is a generic term that is used to describe a method for security to limit entry or exit into a space by allowing the release of only one door at a time.