NCR 7800, Руководство пользователя, Страница: 56 / 112

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Good Read Tone
Selects the parameters for sounding a tone.
Scan Hex 0 for Good Read Tone Off and Hex 1 for Good
Read Tone On.
Selects the frequency of the Good Read Tone. The parameter
contains eight different frequencies ranging from 524 Hertz to
1250 Hertz. Select these frequencies using the Hex 0 through
Hex 7 tags. The default frequency is 617 Hertz.
Since most people cannot determine how a tone sounds based
upon knowing its frequency, you can set the Tone Frequency
by listening to it. When you are at the Tone Frequency
programming selection, you can increment the tone frequency
by scanning the Hex A tag. Each time the Hex A tag is
scanned, the tone increments one unit. After reaching the
highest frequency, the procedure starts over, starting with the
lowest frequency. You can end this mode by scanning the End
tag or another valid Hex tag.
Selects the length of the Good Read Tone. The parameter
contains 9 different lengths ranging from 25 milliseconds to
250 milliseconds. Select these times using the Hex 0 through
Hex 9 tags. The default length is 150 milliseconds.
As with tone frequency, most people cannot identify short
time lengths such as those available for Good Read Tones.
Therefore, you can set the tone length by listening to it. When
you are at the Tone Length programming selection, you can
increment the tone length by scanning the Hex A tag. Each
time you scan the Hex A tag, the tone length increments
25 milliseconds. After reaching 250 milliseconds, the
Tone On/Off
Tone Frequency
Tone Length