8 (FT + FS). SES-L Severely errored seconds - Line Seconds with BPV plus EXZ . 1544 or LOS . 1. UAS-P Unavailable seconds - Path A second of unavailability based on SES-P or AIS . 1. UAS-L Unavailable seconds - Line Seconds with LOS . 1. PRM-NE (a) Performance Report Monitoring - Near End The PRM from CPE indicates errors, and the signal received from the network at the remote is error-free. CV-L Code Violation - Line Total BPV count. PRM-FE (a) Performance Report Monitoring - Far End The PRM from the network indicates errors, and the signal received from the CPE is error-free. PDVS-L Pulse Density Violation Seconds - Line Seconds with excessive zeroes (AMI = 16 zeroes, B8ZS = 8 zeroes). B8ZSS (b) B8ZS Monitored Seconds Seconds with B8ZS detection when AMI option is active. ES-P Errored Seconds - Path Seconds with SEF (c), CRC (ESF) or FE (d)(SF) . 1. MSEC (b) Monitored Seconds of the current (15-minute/1-hour/1-day) screen. (a) Only appears on H2TU-R Performance History screens. (b) Appears on the DS1 Current Statistics screens. (c) Severely Errored Frame—Two or more frame bit errors occurring in a 0.75 ms interval for SF or a 3 ms interval for ESF. (d) FE is a frame bit error. June 16, 2000 H2TU-R-402 152-402-145-02, Issue 2 Monitoring System Activity and Performance Performance History at the HDSL2 Interface Figure 12 is an example of a 31-Day History screen for the H2TU-R HDSL2 interface. The HDSL2 interface has 31-day, 48-hour, 25-hour, and current statistic screens for the H2TU-R and H2TU-C. Table 6 on page 19 describes the kinds of errors reported for these screens. Monitor Performance Event Log Config Inventory Rlogon Help H2TU-R HDSL2 31 Day History (Page 1 of 3) Date ES SES UAS CV LOSWS 04/03 ----04/ 04 ----04/ 05 ----04/ 06 ----04/ 07 ----04/ 08 ----04/ 09 ----04/ 10 ----04/ 11 ----04/ 12 ----04/ 13 ----04/ 14 ----04/ 15 14 10 14 10 10 Press: (N)ext Page, (P)revious Page, C(l)ear History Press to cycle through Interface : H2TU-R HDSL2 choices and to view Statistics : 31 Day History ID: xxxx--xxxx--xxxx--xxxx 04/15/00 12:30:01 H2TU-R System: OK___ Figure 12. H2TU-R HDSL2 31-day Performance History Monitor Performance Event Log Config Inventory Rlogon Help H2TU-R HDSL2 48 Hour History (Page 1 of 4) Time ES SES UAS CV LOSWS 23:00 ----- 1:00 ----- 2:00 ----- 3:00 ----- 4:00 ----- 5:00 ----- 6:00 ----- 7:00 ----- 8:00 ----- 9:00 ----- 10:00 ----- 11:00 14 10 12 10 10 12:00 0 0 0 2 0 Press: (N)ext Page, (P)revious Page, C(l)ear History Press to cycle through Interface : H2TU-R HDSL2 choices and to view Statistics : 48 Hour History ID: xxxx--xxxx--xxxx--xxxx 04/15/00 12:30:01 H2TU-R System: OK___ Figure 13. H2TU-R HDSL2 48-hour Performance History H2TU-R-402 June 16, 2000 Monitoring System Activity and Performance 152-402-145-02, Issue 2 Monitor Performance Event Log Config Inventory Rlogon Help H2TU-R HDSL2 25 Hour History (Page 1 of 9) Time ES SES UAS CV LOSWS 9:45 ----10: 00 ----10: 15 ----10: 30 ----10: 45 ----11: 00 ----11: 15 ----11: 30 ----11: 45 ----12: 00 ----12: 15 14 10 12 10 10 12:30 0000 0 12:45 0002 0 Press: (N)ext Page, (P)revious Page, C(l)ear History Press to cycle through Interface : H2TU-R HDSL2 choices and to view Statistics : 25 Hour History ID: xxxx--xxxx--xxxx--xxxx 04/15/00 12:30:01 H2TU-R System: OK___ Figure 14. H2TU-R HDSL2 25-hour Performance History Monitor Performance Event Log Config Inventory Rlogon Help H2TU-R HDSL2 Current Statistics 1 Day 1 Hour 15 Min Start 00:00 12:00 12:30 ES 000 SES 000 UAS 000 CV 000 LOSWS 3482 1801 1 Margin(dB) LA (dB) Hi 16 Cur 15 25 Low 12 Press: C(l)ear Current Statistics Press to cycle through Interface : H2TU-R HDSL2 choices and to view Statistics : Current ID: xxxx--xxxx--xxxx--xxxx 04/15/00 12:30:01 H2TU-R System: OK___ Figure 15. H2TU-R HDSL2 Current Statistics June 16, 2000 H2TU-R-402 152-402-145-02, Issue 2 Monitoring System Activity and Performance Table 6. Error Acronyms Used on the HDSL2 Performance History Screens Error Acronym Description ES Errored seconds Seconds with HDSL2 CRC .1 or LOSW .1 SES Severely errored seconds Seconds with HDSL2 CRC .50 or LOSW .1 UAS Unavailable seconds Based on 10 contiguous SES occurrences CV Code Violation Total count of HDSL2 CRC errors. LOSWS Loss of Sync Word Second Seconds with LOSW .1 1 Press to select the Performance menu. 2 Press the to select an interface (H2TU-C DS1, H2TU-R DS1, H2TU-C HDSL2, or H2TU-R . 3 Press the SPACEBAR until Alarm History is selected, then press ENTER . 4 PressN or P to page through the alarm history screens. 5 Press L to clear the selected alarm history screen. HDSL2), then press SPACEBARENTER USING THE PERFORMANCE SCREENS TO VIEW ALARM DATA To access the alarm history screens: P Alarm History at the DS1 Interface Figure 16 below and Figure 17 on page 20 are examples of Alarm History screens for the H2TU-R DS1 interface and the H2TU-C DS1 interface, respectively. Current alarms are shown in reverse video...
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