REFERENCES 
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4.4.2  Set Custom Extended Header/Terminator Keys 
 
The extended Header/Terminator keys for Wedge Interface users
 can be 
customized by defining them through a simple keyboard setting procedure. 
 
For example, the Numeric Keypad keys can be set for use as Headers or 
Terminators by substituting the default extended keys using this procedure. 
 
The type of computer or terminal must be selected before activating the keyboard 
setting command. 
 
Press and release a key to set it. 
 
Some characters may require more than one key pressed simultaneously during 
normal use (refer to the manual of your PC or terminal for keyboard use). The exact 
sequence must be indicated to the reader in this case pressing and releasing the 
different keys. 
 
 
Example:
 
If one has to press the "Shift" and "4" keys simultaneously on the keyboard to 
transmit the character "$" to the video, to set the "$", press and release "Shift" then 
press and release "4". 
 
Each pressed and released key must generate an acoustic signal on the reader, 
otherwise repress the key. Never press more than one key at the same time, even if 
this corresponds to the normal use of your keyboard. 
 
Press "Backspace" to correct a wrong key entry. In this case the reader emits 2 
beeps. 
 
Note: "CAPS LOCK" and "NUM LOCK" must be off before starting the keyboard 
setting procedure. "SHIFT" must be repressed for each character and cannot 
be substituted by "CAPS LOCK".