
Tile Numbering
HiSeq 2500 System User Guide
125
Tile Numbering
The HiSeq high output flow cell is imaged in 96 tiles on each lane, top and bottom, for each
cycle. Each lane has 3 swaths with 16 tiles per swath. The rapid flow cell is imaged in 64
tiles. Each lane has 2 swaths with 16 tiles per swath.
The tile name is a 4-digit number that represents the position on the flow cell.
} The first digit represents the surface:
• 1 is for top
• 2 is for bottom
} The second digit represents the swath:
• 1 is for the first swath
• 2 is for the second swath
• 3 is for the third swath (if applicable)
NOTE
A swath is a column of tiles within a lane of the flow cell.
} The last 2 digits represent the tile, 01 through 16. Tile numbering starts with 01 at the
output end of the flow cell through 16 at the input end.
Figure 51 Tile Numbering
This example indicates a tile from the top surface of the flow cell, the second swath,
and the seventh tile.
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