福州供应四通道光衰减器模块（单模可调） description: 　　8-channel mems voa is a voa module based on mircoelectro mechanical mechanism featuring compact design, simple construction, easy direct drive, and excellent optical performance. the voa array is designed to meet the requirements of dynamic fiber optical modules, subsystems and networks. the voa array offers the best value of voa module that is compliant with the telcordia 1209 &1221 reliability standards.customized products are also available. 　　features: *low insertion loss (il) *low polarization dependent loss (pdl) *low insertion loss (il) *low polarization dependent loss (pdl) *high attenuation accuracy *low power consumption *fast response time *high shock & vibration immunity *telcordia 1209 & 1221 compliant