§ 1. The extent of a suspension, within the limits laid down in the preceding canon, is defined either by the law or precept, or by the judgement or decree whereby the penalty is imposed. § 2. A law, but not a precept, can establish a latae sententiae suspension without an added determination or limitation; such a penalty has all the effects enumerated in can. 1333 §1.
Source: Code of Canon Law (Vatican.va)