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AUD-08 B User Manual 

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version 1.1 

 

 

page 4 

2.  AUD-08 B 

2.1. 

Components 

 
The following items are shipped with the AUD-08 B system: 
 

3

 

Audio Monitor (AUD-08 B) 

3

 

User manual 

3

 

System Bus cable  

2.2. 

System Description 

 
The  AUD-08 B  unit  is  a  acoustic  monitor.  It  only  works  in  combination  with  the EXT-02 B 
system,  to  which  it  is  connected  via  the  system  bus.  The  signal  that  is  used  for  audio 
monitoring is the 10-fold amplified DC signal. This signal is not high- or lowpass filtered or 
further amplified, independent of the settings on the EXT-02 B front panel. Only the NOTCH 
filter, if activated, is applied to this signal.  
 
The AUD-08 B is built into a small desktop cabinet with a built-in loudspeaker and two audio 
modes.  In  PITCH mode the voltage input signal is converted to a tone, and in NOISE mode 
the  signal  is  highpass  filtered  to  monitor  the  noise.  A  THRESHOLD  function  (in  NOISE 
mode) can be used for masking the noise of the baseline. 

2.3. 

Description of the Front Panel 

 

 
Figure 1: AUD-08 B front panel view  

Summary of Contents for AUD-08 B

Page 1: ...SYSTEM DESCRIPTION FOR THE AUD 08 B AUDIO MONITOR VERSION 1 1 npi 2014 npi electronic GmbH Bauhofring 16 D 71732 Tamm Germany Phone 49 0 7141 9730230 Fax 49 0 7141 9730240 support npielectronic com h...

Page 2: ...____ ___________________________________________________________________________ version 1 1 page 2 Table of Contents 1 Safety Regulations 3 2 AUD 08 B 4 2 1 Components 4 2 2 System Description 4 2 3...

Page 3: ...is to be operated only at 115 230 Volt 60 50 Hz AC Please check for appropriate line voltage before connecting any system to mains Always use a three wire line cord and a mains power plug with a prot...

Page 4: ...which it is connected via the system bus The signal that is used for audio monitoring is the 10 fold amplified DC signal This signal is not high or lowpass filtered or further amplified independent of...

Page 5: ...r position 3 CHANNEL SELECT rotary switch 9 position switch for selecting the channel to be monitored Position 0 7 correspond to the input channels from the EXT 02 B in the system EXT is the signal fr...

Page 6: ...THRESHOLD in of the value set by INPUT MODE switch 4 0 5 V 1 V 2 V For example if the INPUT MODE switch 4 is set to 2 V and the THRESHOLD potentiometer is set to 80 the resulting THRESHOLD for monitor...

Page 7: ...2 4 Description of the Rear Panel Figure 2 AUD 08 B rear panel view 1 SYSTEM BUS connector see also chapter 2 5 50 pin connecter providing power lines and data lines for connection of the AUD 08 B to...

Page 8: ...ve 1 x AUD 08 B 1 x REL 08 B The order in which the devices are chained up is not important Since it is a bus system all positions are treated equally Channel addresses When using monitoring devices R...

Page 9: ...on 1 1 page 9 3 Technical Data AUDIO MODE PITCH NOISE THRESHOLD selected by rotary switch with OFF position THRESHOLD RANGE and FINE control range 0 5 V 1 V or 2 V max INPUT BNC connector impedance 1...

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