Specifications
ASMi-52 Installation and Operation Manual  Chapter 4 Managing ASMi-52 via a Terminal 
  Configuring the Physical Ports  4-29 
Setting the SNR Margin Threshold 
You can set signal-to-noise ratio threshold. ASMi-52 generates minor alarm (SNR 
MARGIN OVER LINE A/B), if the signal-to-noise ratio on the line exceeds the 
threshold value. 
 
To set the SNR margin threshold: 
1.  From the SHDSL Port Configuration menu, select SNR margin threshold. 
2.  Enter the desired value (0 dB to 15 dB). 
3. Select Save to save the changes. 
Configuring the SHDSL Repeater 
Configuration parameters of the SHDSL repeaters are similar to those of the SHDSL 
device, except for the following: 
•  Selecting repeater that you intend to configure 
•  Selecting power backoff for the customer and network sides of the repeater. 
The SHDSL repeaters are configured via the SHDSL Repeater Configuration menu. 
 
To access the SHDSL Repeater Configuration menu: 
•  From the SHDSL Configuration menu (Configuration > Physical Ports 
Configuration > SHDSL Configuration menu), select SHDSL repeater 
configuration. 
The SHDSL Repeater Configuration menu is displayed (see Figure 4-31). 
ASMi-52 
SHDSL repeater configuration 
1. Power backoff Network side  (Disable) 
2. Power backoff Customer side  (Disable) 
3. Loop Attenuation threshold (dB)[0 - 127]  (0) 
4. SNR margin threshold (dB)[0 – 15]  (0) 
5. Repeater number > (1) 
6. Save 
> 
ESC-prev.menu; !-main menu; &-exit; @-scroll 
Figure 4-31. SHDSL Repeater Configuration Menu 
Configuring the Serial DTE Interface 
If the ASMi-52 modem is equipped with a serial data interface, the configuration 
software allows you to enable/disable the LLB/RLB activation from the DTE (except 
for X.21) and select the modem’s data rate. 










