NCR 7800, User Manual, Page: 63 / 112

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Specifies the valid Interleaved 2 of 5 bar code lengths. Use
this option with the Bar-Code Length parameter described in
the previous section. If you select the Range Check method,
Value 1 specifies the minimum number of characters in a
valid Interleaved 2 of 5 bar code, and Value 2 specifies the
maximum number of characters. If you select the Specific
Check method, Value 1 contains one specific number of
characters, and Value 2 contains another.
Accepted values for Value 1 and Value 2 are 4 to 54 readable
characters. The number of readable characters must be an
even number; if you specify an odd number, it is rounded
down one. Each value is input using two Hex tags. The first
can be Hex 0 through Hex 5 and the second Hex 0 through
Hex 9. The default for Value 1 is 08; the default for Value 2 is
16.
Determines if the bar code must contain a correct check digit
to be identified as valid. If enabled, the bar code is ignored if
a check digit is not present. Scan the Hex 0 tag to disable this
option or scan the Hex 1 tag to enable it. Disable is the
default.
Determines whether the check digit is sent to the host
terminal or PC. Scan the Hex 0 tag to disable this option or
scan the Hex 1 tag to enable it. The default is to disable
sending the check digit.
Value 1 and Value 2
Check Digit Present
Transmit Check Digit