Lockout (telecommunication)
From Wikipedia, the free encyclopedia
In telecommunications, the term lockout has the following meanings:
- In telephone systems, treatment of a user's line or trunk that is in trouble, or in a permanent signal condition, by automatically disconnecting the line from the switching equipment. Also called make busy.
- In public telephone systems, a process that denies an attendant or other users the ability to reenter an established connection.
- In a telephone circuit controlled by two echo suppressors or similar voice-operated devices, the inability of one or both users to get through, either because of excessive local circuit noise or because of continuous speech from either or both users.
- In mobile communications, an arrangement of control circuits whereby only one receiver can feed the system at a time. Synonym: receiver lockout system.
- An arrangement for restricting access to use of all, or part of, a computer system. Synonym: protection.
This article contains material from the Federal Standard 1037C (in support of MIL-STD-188), which, as a work of the United States Government, is in the public domain.
