Bosch DCNM-FAI – Dicentis FAI Flush audio interface

The Flush audio interface is intended for custom-build solutions. It allows for a 3rd party microphone to connect to a DCNM-FBD2. The DCNM-FAI also supports other types of audio inputs, such as:
• Line input
• Balanced or unbalanced audio
• 48 V phantom powered microphones.

• Intended for custom-build solutions
• Interfaces with audio sources besides the DICENTIS microphones
• Microphone and line level
• Phantom power supply of 48 V

I/O for control and indication

Functions
Rostrum with DICENTIS microphones
The audio interface also has 2 CLIK-mate connectors to connect 2 DCNM-FMCP to a DCNM-FBD2, which will make a rostrum position.

Other microphones
The Flush audio interface allows connecting one microphone or one line level audio sources to the DCNM-FBD2 to build custom solutions. The DCNM-FAI has a contact input and two outputs:
• An input contact to connect a custom microphone
button
• And outputs for indication of the microphone
button status.
Use of switches
• Level and gain selection.
• Power option selection.

Interconnections
• An 8-pole audio/MIC input connection to receive (un)balanced audio, set the button status, and control the microphone LEDs.
• Two power and LED control connections to the
DCNM-FMCP.
Balanced audio interface to connect to the DCNMFBD2 through a 2 m cable with a 3-pole terminal
block.
• Control interface, through RJ12, to the DCNM-FBD2
and other devices.

Technical specifications
Audio
Nominal input level (dBV) (0 dB) (microphone): -46 dBV
Maximum input level (dBV) (0 dB) (microphone): –16 dBV
Nominal input level (dBV) (18 dB) (microphone): -64 dBV
Maximum input level (dBV) (18 dB) (microphone): -34 dBV
Nominal input level (dBV) (0 dB) (Line): -12 dBV
Maximum input level (dBV) (0 dB) (Line): 18 dBV
Nominal input level (dBV) (18 dB) (Line): –30 dBV
Maximum input level (dBV) (18 dB)(Line): 0 dBV
Gain selection (dB): 0; 6; 12; 18

Electrical
Power consumption (W): 0.5 W
Operating voltage (VDC): 5 VDC
Output voltage (VDC) (phantom): 48 VDC
Output current (mA) (phantom): 8 mA
Output voltage (VDC) (LED): 4.5 VDC
Maximum output current (mA) (per
LED color):10 mA

Mechanical
Dimensions (H x W x D) (mm): 82 mm x 122 mm x 28 mm
Dimensions (H x W x D) (in): 3.23 in x 4.80 in x 1.10 in
Weight (g): 126.90 g
Weight (lb): 0.28 lb
Color in RAL RAL 9017 Traffic black

Environmental
According to IEC 60721: storage (1K3), transportation (2K2) and operational (3K4).
Operating temperature (°C): 5 °C – 45 °C
Operating temperature (°F): 41 °F – 113 °F
Transportation temperature (°C): -30 °C – 70 °C
Transportation temperature (°F): -22 °F – 158 °F
Storage temperature (°C): -5 °C – 45 °C
Storage temperature (°F): 23 °F – 113 °F
Operating relative humidity, noncondensing (%): 5% – 90%