ASSA ABLOY DoorBird D21DKV IP视频门铃站使用说明 Part of ASSA ABLOY Errors and omissions excepted. | Last update 07/2023 - Copyright © ASSA ABLOY – www.doorbird.com For multi-tenant residences and buildings with up to 500 units Display Module ∙ Keypad Module IP VIDEO DOOR STATION D21...
(RFID), any of the IEEE 802. 11 standards, any of the IEEE 802.15 standards, wireless Universal Serial Bus (USB), etc. The electronic key can also be considered to be a credential. Using the communication channel3, the authenticity of the electronic key2can be checked, e.g. using a ...
For example, the portable card 148 may correspond to any type of portable access credential such as an Integrated Circuit (IC) card, a smart card, a key fob, a Near Field Communications (NFC) enabled mobile communication device, and the like....