Control Codes Tab

Using this tab, you can specify various options required for specifying characters used in transferring data.

Table 4-51 Control Codes Tab Options

Options

Description

Normal, Repeat, And Class

These are ASCII characters, represented in hexadecimal code. The characters are used at the receiving end to interpret incoming data. In binary data transfers, these characters handle data in the different hexadecimal ranges found in hosts and PCs. In text transfers, these characters are used to specify record separators and other parameters.

The default settings are as follows: Normal = 1C; Class 1 = 1D; Repeat = 1F; and Class 2 = 1E. These settings work in nearly all situations. Changing them without precise knowledge of the impact can lead to unpredictable results.

Record Delimiter

Specify the hexadecimal code for an ASCII character. This marks the end of a record being sent to the host. The default is 0D0A, representing CR/LF. If your data uses another delimiter, enter it instead.

Extended Character

Controls whether or not ASCII characters are converted to extended characters. Usually, conversion is needed for displaying foreign language character sets.

To send extended characters to and from the host, you precede them with an SO (shift out) code. To end a SO string, you send an SI (shift in).

SOM Token

A six-character sequence that precedes all data and control messages during a file transfer.

The default is !@FT#), but you can specify any characters you choose.