An archived redo log is a copy of an online redo log that has been copied to an offline destination. If the database is in ARCHIVELOG mode, Oracle copies each online redo log as it is filled.
Select to back up the archived redo logs.
Select to back up all of the archived redo logs.
Select to specify which archived redo logs to include in the backup.
and are used to specify the beginning and ending date/time range.
Select to have the archived redo logs deleted after they are successfully backed up.
For information on backing up archived redo logs refer to the Oracle Backup and Recovery Guide.