User`s manual

Data Options and Profiles
Typical Data Option Settings for Data
Transfer
This section describes the options you may need to modify for three common
types of data transfer.
Character by Character Transmission or
ASCII File Transfer
For typical character by character data transmission, activate the factory profile
(p0). Depending upon the network’s configuration, it may be necessary to
change the Mode option to DX25 or one of the V.120 modes. (Check with your
system administrator for your system’s configuration.)
Line/Block at a Time Transmission
You may want to either create or change a line or block of characters at a time
before sending them to the far-end. (Typically, this operation is only applicable
to X.25 data connections; see the explanation for Mode earlier in this chapter.)
First, activate the factory profile, p0. Second, set the Mode option to DX25.
Third, set the Edit option to on. Fourth, change the Forwarding option from off to
the desired value; typically this should be cr. Make sure the ADMs Echo option
is set to on and the data terminal’s echo option is set to off.
Binary (8-bit Data or Executable) File
Transfer
Binary files may contain the xon/xoff characters which are normally used for flow
control. Such file transfers require the flow control options, Rec.flow and
Trans.flow, be set to off or eia. Many PC communications packages provide file
transfer protocols which mask the xon/xoff characters for binary file transfers
causing the files to appear as a text file to the ADM. Typically, such programs
prompt you to specify if the file to be transferred is binary or text. You need to be
concerned with the following constraints of binary file transfers only if you do not
have such a program.
For a binary file transfer, both endpoints must be operating at the same speed
and that speed must not exceed the effective throughput of the data channel.
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