Spec Sheet Preview: The DBM40 series alphabetical display modules are designed to be used with Alpha Communications® / S.T.R.™ modular series QwikBUS™ door entry stations. When used in conjunction with the EMV3 series vandal-resistant keypad module, the DBM40 enables a building visitor to easily find and call a building resident. All DBM40 alphabetical display modules feature a large backlit, high brightness multi-lingual graphic display, for name and code# display, …