DDB104 is the main network connection box between the DCP1000 digital conference processor and the CDM delegate units. It will be connected by using the CDM-Net-Loop cables. The cables can transport power, digital audio and data between CDM devices and the DCP1000.

Due to the high-speed network, it allows to store all data of each delegate unit into the DCP1000 and recall the data at the moment the CDM unit is engaged. It saves a lot of processing power, but allows the System for unique DSP functions! To prevent unexpected cable disconnection, the DDB104 can communicate to one DCP1000 processor by 2 CDM-Net-Loop connections (Closed Ring). This makes the whole System completely redundant! Up to 63 DDB104 units can be connected to a single CDM-Net-Loop card. Each unit can handle 4 delegate units or other devices such as VOTEPAD-DR. It has the LED indicator on the front panel to recognize faulty disconnection. There are 2 types of interfaces available for the DDB104: CAT5/6 or Fiber Optic connections.