Operator`s manual

Model VR240 Audio Logging Recorder
January 2000
3-37
a character key, the character already present on the line is used as a starting point. Any
characters not used are actually space characters, which have an ASCII value of 32, the
lowest value available. Here is the sequence you will see by starting with a space and
pressing the up arrow key:
ASCII 32 - 47: ! “ # $ % & ‘ ( ) * + , - . /
ASCII 48 - 63:0 1 2 3 4 5 6 7 8 9 : ; < = > ?
ASCII 64 – 79:@ A B C D E F G H I J K L M N O
ASCII 80 – 95:P Q R S T U V W X Y Z [ ¥ ] ˆ _
ASCII 96 –111:` a b c d e f g h I j k l m n o
ASCII 112-127:p q r s t u v w x y z { | }
→
This character set differs slightly from standard ASCII in that character number 92, a
backslash in the standard, is now a Yen symbol. And, character 126 is no longer the
tilde, it is now a right-bracket.
a. Additional editing options are found by hitting the
>
(next) soft key:
Insert
will insert a blank space at the cursor location, and “pushes” all characters
to the right of the cursor one position to the right. (It is possible to push
characters off the display; they will remain part of the descriptor providing
that you haven’t pushed them beyond the 77-character limit.)
Delete
deletes the character above the cursor, and “pulls” all characters after the
cursor to the left by one character position.
Save
will preserve the newly edited descriptor in the VR240’s non-volatile RAM.
At this point you have completed the editing of one descriptor, and the
menu drops back one level to the channel selection keys. You can now
edit another channel if you wish.
Cancel
will also drop you back to the channel selection menu, but it abandons all
changes that you may have made during editing, and the descriptor is not
changed.
3-34. COPY DESCRIPTORS.
Descriptors (on the secondary menu) is a powerful and hence potentially “dangerous” option
that will copy the channel descriptors from the media in the selected drive to the memory of the
VR240. The “danger” lies in the fact that it is time consuming to enter descriptors manually and,
once they have been changed, the only way to get the original ones back is to re-enter them,
unless, of course, you have media with the original descriptors. The purpose of this feature is to
allow you to substitute one VR240 for one that may be on temporary duty elsewhere or out of
service for other reasons. This operation does not change other aspects of the machine
configuration. It does not change serial numbers, or any user-configurable parameters. When
you hit
CopyFromMedia
, you are given the opportunity to change your mind.