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Wikipedia / X.3

X.3 is an ITU-T standard indicating what functions are to be performed by a Packet Assembler/Disassembler (PAD) when connecting character-mode data terminal equipment (DTE), such as a computer terminal, to a packet switched network such as an X.25 network, and specifying the parameters that control this operation.

The following is list of X.3 parameters associated with a PAD:

  • 1 PAD recall using a character

  • 2 Echo

  • 3 Selection of data forwarding character

  • 4 Selection of idle timer delay

  • 5 Ancillary device control

  • 6 Control of PAD service signals

  • 7 Operation on receipt of break signal

  • 8 Discard output

  • 9 Padding after carriage return

  • 10 Line folding

  • 11 DTE speed

  • 12 Flow control of the PAD

  • 13 Linefeed insertion after carriage return

  • 14 Padding after linefeed

  • 15 Editing

  • 16 Character delete

  • 17 Line delete

  • 18 Line display

  • 19 Editing PAD service signals

  • 20 Echo mask

  • 21 Parity treatment

  • 22 Page wait

References