ADC HiGain H2TU-C-202 User Manual page 34

Monitoring System Activity and Performance
Field
Active Loopback
Code type
DS1 ES Count
DS1 SES Count
DS1 UAS Count
Frame type
HDSL2 ES Count
HDSL2 SES Count
HDSL2 UAS Count
HG
ID
LA
LPF
M
PL
PRM
System Status
26
Table 11. Monitor Screen Descriptions
Description
An active loopback is indicated on the lower third of the Monitor screen. Available loopbacks are
indicated by gray text. See Table 18 on page 42
codes.
Type of DS1 line coding used (B8ZS, AMI, or AUTO).
Errored Seconds—The sum of the Errored Seconds-Line (ES-L) and Errored Seconds-Path (ES-P)
counts detected on the DS1 input over a 24-hour period. Errors included are: DS1 Frame errors,
BPV, and ESF CRC errors.
Severely Errored Seconds—The sum of the DS1 Severely Errored Seconds-Line (SES-L) and
Severely Errored Seconds-Path (SES-P) counts over the last 24 hours.
Unavailable Errored Seconds—The number of seconds during which the DS1 input signal was
absent over a 24-hour period.
Type of DS1 framing detected at the input stream (SF, ESF, or UNFR).
Errored Seconds—The number of 1-second intervals that contained at least one CRC or LOSW
error. This value is a running total of the last 24 Hours.
Severely Errored Seconds—The number of 1-second intervals that contain at least 50 CRC errors
or one or more LOSW defects. (An LOSW defect occurs when at least three consecutive HDSL
frames contain one or more frame bit errors.) This value is a running total of the last 24 hours.
Unavailable Errored Seconds—The number of seconds the HDSL2 loop is unavailable. This occurs
after 10 contiguous HDSL SES and is retired after 10 contiguous non-SES seconds. This value is
a running total of the last 24 hours.
The loopback was initiated from a HiGain (HG) front panel or by a HiGain maintenance terminal
loopback command.
Circuit identification (ID) number.
Loop Attenuation—Indicates the attenuation of the Overlapped Pulse Amplitude Modulation (PAM)
Transmission with Interlocking Spectra (OPTIS) pulse from the distant end. The value is related to
the loop attenuation at 196 kHz and should be kept under 35 dB.
Line Power Feed—Indicates the HDSL2 line power is on.
Margin—The signal-to-noise ratio at all HDSL2 ports, relative to a 10
The loopback was initiated by a command embedded in the DS1 data path payload (PL).
The sum of the Performance Report Messaging - Near End (PRM-NE) and Performance Report
Messaging - Far End (PRM-FE) counts.
The presence or absence of an alarm condition is indicated on the lower right corner of all screens.
System: OK indicates that there are no alarms present; System: Alarm indicates the presence of
an alarm. Refer to "Using the Performance Screens to View Alarm Data" on page 34
alarm information.
March 14, 2000
152-202-116-02, Issue 2
for a summary of the HiGain HDSL2 loopback
-7
Bit Error Rate.
for detailed
H2TU-C-202 List 1F