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10.2 Both sides
Same concept and doing than for the one-side extensions, please see chapter 10.1 One side.
10.3 Long neck
In the case the outside housing of long-neck version will be extended instead three only two screws
can be used to fix the backbone (see below).
In the case the long-neck version will be used in a door with the complete DIN cut-out we recommend
to change the long-neck backbone, which is slightly shorter, against the DIN backbone (A5.009) to
improve the pulling protection safety of the cylinder. Or alternatively possible to turn the existing
backbone, means outside to inside.