User manual

DMU DIGITAL METERS UNIT FOR NXAMP
DMU Digital Meters Unit for NXAMP
The Digital Meters Unit (DMU) is a 1U 19” accessory for NXAMP4x1 and NXAMP4x4
powered TDcontrollers.
This device is intended to monitor the input level on the four analog inputs and the four
network inputs (from an Ethersound™ or Dante™ network if expansion board is fitted) of
the NXAMP powered TDcontroller. Network ports status can be monitored as well.
Front panel description
1
2 3
(1) Analog inputs with link
These XLR-3 connectors are intended to connect the analog audio source (analog outputs
of a mixer for example) to the NXAMP input. Both XLR3 male and female are in parallel for
each input (marked A to D), allowing to link several DMU together.
(2) Input view meter
Fore each input a view-meter is installed between the two XLR. This meter shows the audio
level with a maximum of 0 dBr (meaning the clip of the input stage witch is +28 dbU). The
scale is the following:
Number of LEDs ON NXAMP A/D out level
8 0 dBr
7 -6 dB
6 -12 dB
5 -18 dB
4 -24 dB
3 -30 dB
2 -36 dB
1 -42 dB
0 <-42 dB
(3) Network inputs
These Ethercon® connectors can be used either when NXES104 or NXDT104 cards are
fitted into the NXAMP. Network status LEDs are fitted next to each network port, but there
meaning is slightly different depending on the card fitted.
PAGE 107 OF 140