The minimum number of characters required in the password. In addition to the number of characters in the new password, credit (of +1 in length) will be given for each different kind of character (uppercase, lowercase, digit or special), thus giving the user the choice between long simple and shorter but more complex passwords. The maximum credit that is given for each different type of character is configured using the tmnxPasswordCreditsLowerCase, tmnxPasswordCreditsUpperCase, tmnxPasswordCreditsSpecialChar and tmnxPasswordCreditsNumeric MIB fields. Setting these 4 fields to 0 will effectively disable passwords credits.