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

External links

• X.3 standard at ITU site
• Cisco Web Page Definition of X.3 parameters

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