Bosch DCNM-APS2 Accessory

The Audio processor and powering switch is responsible for routing, controlling and processing the audio. The DCNM-APS2 also supplies power to the discussion and multimedia devices. The device includes an intelligent adaptive acoustic feedback suppressor, echo cancellation and two 5-band parametric equalizers for optimal speech intelligibility. It has two audio inputs for inserting external analogue audio signals into the system and mix-minus is provided for connecting the DICENTIS Conference System to video conferencing equipment. The DCNM-APS2 also has two audio outputs used for mix-minus and to connect an external sound reinforcement system.

The built-in Ethernet switch connects all devices in the system together in a network and supports loop-through connection. This makes it possible to connect a DICENTIS discussion device to another DICENTIS discussion device. Even the last DICENTIS discussion device in the loop can be connected to a DCNM-APS2 to create cable redundancy. The DCNM-APS2 has no user controls and can be fully controlled remotely.

Controls and indicators

• Mains switch on the rear to power on the Audio processor and powering switch
• Ground-lift switch
• LED on the front shows: power on (green), standby (amber), and no connection to the system (blinking)
• LED on the rear shows: power availability on each powered socket (green), and overload per powered socket (red)
• Ethernet LED's yellow and amber for each socket
• Independent powered sockets: a short circuit on one socket does no influence the other sockets
• Supports hot plug and play

Interconnections

• 2 three-pole XLR balanced audio line inputs with galvanic separation
• 4 RCA unbalanced audio line inputs
• 2 three-pole XLR balanced audio line outputs with galvanic separation
• 4 RCA unbalanced audio line outputs
• Mains power supply auto ranging input
• 1 socket with Ethernet without power, compatible with RJ45
• 3 sockets with Ethernet with high power supply (144 W), compatible with RJ45
• 1 socket with Ethernet with low power supply (15 W), compatible with RJ45