Bosch Dicentis DCNM-APS2 – Audio processor and powering switch

• Zero network configuration
• Fully compatible to the Ethernet (IEEE802.3) and OMNEO standard
• Supports loop‑through connection with cable redundancy
• Acoustic feedback suppression, echo cancellation and equalizer
• Standby mode to be environment friendly

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.

Functions
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

Technical specifications
Electrical
Input voltage (VAC): 100 VAC – 240 VAC
Power frequency: 50 Hz; 60 Hz
Power consumption (W): 530 W
System supply (VDC): 48 VDC
Total power supply: 3x 144 W + 15 W
Frequency response (Hz): 30 Hz – 20000 Hz
Total harmonic distortion + noise (%): 0.10%
Minimum dynamic range (dB): 95 dB
Minimum signal-to-noise ratio (dB): 95 dB

Audio inputs
XLR nominal input: -18 dBV (+6 dB / -18 dB)
XLR maximum input: +18 dBV
Cinch nominal input: -30 dBV (+6 dB / -18 dB
Cinch maximum input: +6 dBV
Audio outputs
XLR nominal output: -18 dBV (+8 / -24 dB)
XLR maximum output: +20 dBV
Cinch nominal output: -30 dBV (+8 / -24 dB)
Cinch maximum output: +8 dBV
Mechanical
Mounting type: Rack-mounted; Tabletop
Dimensions (H x W x D) (mm) for tabletop use with feet: 92 mm x 440 mm x 400 mm
Dimensions (H x W x D) (in) for tabletop use with feet
3.60 in x 17.30 in x 16.70 in
Dimensions (H x W D) (mm) for 19” rack use, with brackets:
88 mm x 483 mm x 400 mm
Dimensions (H x W D) (in) for 19” rack use, with brackets:
3.5 in x 19 in x 15.7 in
In front of brackets (mm): 40 mm
In front of brackets (in): 1.6 in
Behind brackets (mm): 360 mm
Behind brackets (in): 14.2 in
Weight (kg): 7.62 kg
Weight (lb): 16.79 lb
Color in RAL RAL 9017 Traffic black
Environmental
Operating temperature (°C): 0 °C – 45 °C
Operating temperature (°F): 32 °F – 113 °F
Storage temperature (°C): -20 °C – 70 °C
Storage temperature (°F): -4 °F – 158 °F
Transportation temperature (°C): -20 °C – 70 °C
Transportation temperature (°F): -4 °F – 158 °F
Operating relative humidity, noncondensing (%):
5% – 96%