Spectra Stack Tape Library User Manual page 275

APPENDIX A - SPECIFICATIONS
LTO Barcode Element Specifications
For the official IBM barcode label specification, see
https://ibm.com/support/docview.wss?uid=ssg1S7000429. Unless otherwise specified,
tolerances are X.XXX ± 0.127 mm, X.XXX ± 0.762 mm.
• Minimum symbol height is 11.1 mm, measured to the inside of the label's edge.
• The wide-to-narrow ratio is 2.75.
• The narrow element width is 0.432 mm +0.03 mm or –0.076 mm.
• The nominal width of the wide spaces and bars is 1.188 mm.
• The inter-character gap is 0.432 mm +0.03/–0.076 mm.
• The minimum quiet zone at the beginning and end of a printed barcode string is
4.32 mm (10 times the narrow element width).
• The total nominal barcode string length (including quiet zones) is 74.088 mm.
• The edge of the barcode is the edge of the printed area associated with the bar.
The edge roughness is the transition encountered as a horizontal line is moved
vertically from all black to all white. The edge roughness maximum is 0.038 mm.
• Variation between all bars, white and black, must be less than ±0.0381 mm.
LTO Physical Label Specifications
• Label stock must fit within the label recess on the face of the cartridge without
curling up on the sides or ends (79 mm X 17 mm +0/–0.8).
• Minimum length sufficient for the quiet zones, start-stop, and data characters
(nominal 74.088 mm).
• Minimum width no less than 1.5 mm narrower than the cartridge label recess
width. Corners are cut with a 1.5 mm radius.
• Maximum label thickness, including the RFID tag, if present, together with any
associated layers and adhesives cannot exceed 0.40 mm.
• The label and adhesive must have an environmental performance to match or
exceed the environmental specifications of the cartridge to which it is applied.
JANUARY 2023 275
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