PAD Services
X.3 Parameter Descriptions
the current X.3 setting is overwritten on the server. A set command is sent to reset the parameter in the remote PAD. If x29server cannot map the terminal I/O parameter to X.3, the request is processed as a normal terminal I/O ioctl().
When x29printd and x29server transform terminal I/O parameters into X.3 parameters, they intercept the ioctl (tcseta) call and send an X.29 set command with new X.3 parameter values if necessary. The related X.3 parameters are: 2 (echo), 3 (data forward), 4 (idle timer), 5 (device control), 12 (flow control), 15 (editing), 16 (character delete), and 17 (line delete).
The x29server process downloads only those X.3 parameters that are specified in the x3config file for a particular remote system. The x29print process always downloads a set of X.3 parameters (if they exist in the x3config file) at the beginning of a connection, or the default X.3 parameters (given in the preceding table) if the X.3 parameters do not exist in the x3config file.
The X.3 parameters for padem can be changed by an X.29 set message from the remote host or by the terminal operator with a set command.
Default X.3 Parameters
If the x3config file does not have a definition for a particular device, the defaults (listed in the next section) are used. See Appendix B, X.25 Configuration Files and Examples, for an example of the x3config file.
X.3 Parameter Descriptions
The following pages contain a description of X.3 parameters 1 through 22. The default X.3 parameters vary for each PAD service.
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