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Geneonet

    K


K
    See kilo- (K)

KA
    See keep alive (KA)

Ka band
    20-30GHz range (millimeter wave band).

keep alive (KA)
    A message used in the link management interface (LMI) of a frame relay port to verify link integrity.

Kermit
    Columbia University's almost error-free, flexible, asynchronous file transfer protocol used for PC communications.

key
    As related to a database, an identifier for a single collection of data, such as a record, a row, or an object. The key for a customer might be a customer number. The key for 800 number information might be the 800 number plus the state code plus an effective date. One collection of data may have a "foreign key" that points to another collection of related data in another file, table, database, or collection of objects.

key frame
    A video frame in which all of the video information is recorded in compressed fashion. If the clip has a large amount of motion, better playback will occur with every frame being a Key Frame. If there is very little motion, such as a narrator, a higher number of Delta Frames will give satisfactory playback. In general making every 3rd frame a Key Frame is a good choice with the current Indeo algorithm. (see Delta Frame)
delta frame

key generator (KG)
    A device external to the codec for maintaining the security of classified communications by means of encryption techniques. Provides much better security than DES and is generally used only by the military, NATO and some military contractors.

key pulsing (KP)
    A telephone system in which calling signal digits are transmitted using push buttons.

key service unit (KSU)
    The main operating unit of a key telephone system.

key system
    1) An office telephone system that provides all users with immediate access to outside lines when they press one or two dedicated keys. For example, a six-button key system could have a hold button, four outside lines and an intercom. Key systems typically have fewer lines and telephones than a private branch exchange (PBX) system. Key systems can also be used with a PBX or Centrex system. 2) The equipment used to provide the features associated with key sets, including keysets, multipair cable, key service unit, and distribution frames.

key telephone system (KTS)
    A system that provides direct selection of an outside line from a multiline telephone set. For example, line holding and intercommunications functions are selected at the instrument. Visual indications are given on the status of each line associated with the instrument. See electronic key telephone sets.
electronic key telephone sets (EKTS)

keyboard dialing-data adapter
    The facility that initiates data and voice calls from data terminal equipment through a data adapter.

keyboard send/receive (KSR)
    A combination teletypewriter transmitter and receiver with a keyboard that is only capable of transmission.

keying (modem)
    The process of modulating a carrier signal to encode binary information. Keying in modems is normally performed by changing the frequency or phase of the carrier signal.

keyset
    A telephone instrument that can be accessed by depressing a button or key on the face of the set.

KG
    See key generator (KG)

kilo- (K)
    1) A prefix for one thousand times a specific unit. 2) 1,024(binary 210).

KP
    See key pulsing (KP)

KSR
    See keyboard send/receive (KSR)

KSU
    See key service unit (KSU)

KTS
    See key telephone system (KTS)

KTU key telephone unit
    See key service unit (KSU)

Ku band
    12-14 GHz range (millimeter wave band).

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Since November 20, 1999

Created by Jim Needham

İVector Graphics 1995

Revised: February 16, 2011
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