Datasheet for the Siemens System 3 Audible Alarm Extenders, published in 2011. Document No: 3129, Rev: 1. Models AA-30U and AE-30U. Product features and technical specifications.
Datasheet for the Siemens System 3 Audible Alarm Extenders, published in 2011. Document No: 3129, Rev: 1. Models AA-30U and AE-30U. Product features and technical specifications.
