Epson MFJ-1278B manual Special Characters

MFJ-1278B MULTI-MODE ADVANCED OPERATION

ADVANCED PACKET OPERATION

This chapter describes some other aspects of Packet operation that you will not need to be concerned with for everyday conversational operation. You will want to consult this chapter if you are using your station for special applications such as a Packet Personal Mailbox, Bulletin Board, binary file transfers, Packet picture transfers or running a "host" program. In this chapter also discuss use of the newly developed packet anti-collision feature. HF and OSCAR packet operation is also discuss in detail in this chapter.

We will use the term "computer" to refer to computers or terminals. In the command examples, the MFJ-1278B's prompts and other messages are shown in ordinary type, your responses are shown in bold face, and received packets are shown underlined. Commands and other special keywords are shown in upper case; other text entered to the MFJ-1278B is shown in upper and lower case.

SPECIAL CHARACTERS

The MFJ-1278B recognizes a number of special characters for input editing, flow control, and other control functions. You can change any of these special characters to customize the MFJ-1278B to suit your applications, your computer, or your whim. Commands within the MFJ-1278B set these special characters. These special character commands specify the ASCII character code for the desired character. You can disable any special character feature by setting the character value to 0. The user can disable the input editing characters without no serious side-effects. You should use caution in disabling the flow-control or Command Mode entry characters. Also be careful not to set two special characters to the same value.

Various control characters are normally used for special characters. The user would enter control characters by holding down the CONTROL key, CTRL while typing another character. For example, to enter a Control-C, or <CTRL-C>, the user would hold down the CONTROL key, CTRL and press the C key at the same time. If your computer does not have a special control key, you will have to consult your computer's documentation to see how to enter these characters. If you will have difficulty entering control characters, you can change the special characters to, for example, seldom used punctuation. The action of each special character is described in detail under the entry in Chapter 6 for the command that sets that character.

You can enter the code for a character in either Hexadecimal (base 16) or Decimal notation. The MFJ-1278B displays character codes in Hexidecimal notation. A number in Hexidecimal notation is indicated by beginning a number with a $ in front of it, such as $1B. Each of the "digits" of a Hexidecimal number represents multiples of the powers of 16. The values 10 through 15 are represented by the letters A through F, which may be upper or lower case. For example, take a look at break down of hexidecimal value $1B: