Aethra d2061 Manuel D’Utilisation

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USER’S MANUAL 
                                                                                          ADSL TESTER D2061 
 
 
The block of bits at the left of the screen represents the upstream 
signal. The highest frequency for the upstream is approximately 
140 kHz. The higher frequency group at the right represents the 
downstream signal. There can be anywhere from a 20 to 40 kHz 
buffer between the upstream and downstream frequencies. As 
mentioned earlier, the lower frequency tones (lower than 140 
kHz) represent the bandwidth used for the upstream signal. The 
higher frequency tones at the right show the frequencies used for 
the downstream signal. The bits should drop to zero around 140 
kHz. This is the buffer between the upstream and downstream 
signals. The actual size of this buffer varies. If you see a major 
drop in bits in either the downstream or upstream section, this 
may have been an indication that there is an interferer at that 
frequency. For example, if there is a major drop at 772 kHz, this 
most likely represents an interfering T1 signal.  
This configuration is a little bit difference between an ADSL 
access over Pots and ADSL Access over ISDN. 
 
 
 
 
 
 
 
 
CHAPTER 6 - SMART STATUS 
 
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