"IEC 62343 applies to all commercially available optical dynamic modules and devices. It describes the products covered by the IEC 62343 series@ defines terminology@ fundamental considerations and basic approaches. The object of this document is to ? establish uniform requirements for operation@ reliability and environmental properties of dynamic modules (DMs) to be implemented in the appropriate DM standard@ and ? provide assistance to the purchaser in the selection of consistently high-quality DM products for his particular applications@ as well as in the consultation of the appropriate specific DM standard(s). This document covers performance templates@ performance standards@ reliability qualification requirements@ hardware and software interfaces and related testing methods. Since a dynamic module integrates an optical module/device@ printed wiring board@ and software/firmware@ the standards developed in the series will mimic appropriate existing standards. On the other hand@ since ""dynamic module"" is a relatively new product category@ the dynamic module standards series will not be bounded by the existing practices where requirements differ. The safety standards as related to dynamic modules are mostly optical power considerations@ which is covered by IEC TC 76: Optical radiation safety and laser equipment. "