Paradyne 3360 User Manual

Also see for ACCULINK 3360: Quick installation Operator's guide Operator's guide

Paradyne 3360 User Manual Manual pdf 65 page image

Maintenance4-53360-A2-GB20-10 June 1996HDSL Loop PerformanceUse the HDSL Loop Performance branch to view thesignal quality and loop loss messages for each loop on thelocal E1 NTU. Table 4-3 lists these messages.To display HDSL loop performance,1. From the top-level menu screen, select Stat.F1E1 HDSL NTUStat Test CnfigF2 F32. From the Status screen, select HDSL.F1Status:HDSL DevHS STestF2 F3HDSL messages appear on Line 2 of the LCD.The E1 NTU is polled for current status every tenseconds. If the status has changed from the lastpoll, the HDSL screen is updated.3. Use the scroll keys, to scroll additional HDSLmessages onto the LCD.F1HDSL:Lp1 SigQ=xxF2 F3Table 4-3HDSL Loop Performance MessagesMessage DescriptionLp1 SigQ=xx The loop 1 signal quality value (xx) is 0 to 10. A value of 10 indicates the noise margin is 9 dB ormore above the margin needed to produce a bit error rate of approximately 10-7 . The values of 2 to9 indicate noise margins of 1 to 8 dB above this margin. A value of 1 indicates the noise margin isless than or equal to the margin needed to produce a bit error rate of approximately 10-7 . A value of0 indicates the loop is out of synchronization or the noise margin is unavailable.Lp2 SigQ=xx The loop 2 signal quality value (xx) is 0 to 10. (See the Lp1 SigQ description above.)Lp1 Loss=xx The loop 1 loss value (xx) is 0 to 40. The value indicates an approximation (+/– 2 dB) of the lossthat the E1 NTU detects at the interface to loop 1. Due to bridge taps on the loop, this value couldbe different at each end of the loop. (Values above 40 are invalid.)Lp2 Loss=xx The loop 2 loss value (xx) is 0 to 40. (See the Lp1 Loss description above.)