Honeywell 4820 - Manual (Page 8)

7
Override Locked Imager
If you need to replace a broken or lost imager that
is linked to a base, scan the Override Locked
Imager barcode with a new imager, and place that
imager in the base. The locked link will be
overridden; the broken or lost imager’s link with the
base will be removed, and the new imager will be
linked.
Unlinking the Imager
If the base has an imager linked to it, that imager
must be unlinked before a new imager can be
linked. Once the previous imager is unlinked, it will
no longer communicate with the base. Scan the
Unlink Imager barcode to unlink an imager.
Override Locked Imager
Unlink Imager