Application
Projects require direct-press door station with less than 64 users.
It is recommended to use the M4 module of DT821 series and the upgraded BDU-V2
The advantages are:
Free configuration on door station and BDU , directly call by buttons (max.2 BDU)
Can be used together with other module DR. TFT. FP…
Generally applicable scenarios are as follows:
If there are 32 IM in one BDU zone, need to use the Power supply-PC7H
Support one door station only ( new branch will issue soon)
If more than three BDUs are needed, should use the old rule to set the key value of the button
IM in one DBU zone: Normal IM Max.32, DX Max.8, DT47MG Max.12
Upgraded DT821/VD, DT821/M4, BDU are required for the above application
Call codes rules in M4 under 2pcs of BDUs
Use the DIP on the back of each 821-M4 module to define the room number (monitor address) of the key call, regardless of the installation location and order of the M4 module
The rules are as follows:
The last two bits of DIP set to OFF as default .
New Feature
Online detection function for monitors via door station when new BDU-V2 as a router in the system
Long press the virtual button beside the unlocking indicator of VD module) to light up the button indicator in turn. If monitor not online, the indicator will not light up, and it will automatically exit after the detection is completed.
This feature can help the installer to test whether the online status and address setting of the monitor are correct after the project installation is completed.
