ADC HiGain HRU-402 User Manual page 41

150-402-100-03
Table 7. Span Status Fields and Descriptions
Field Description
Time Time of day when Span Status was checked.
Date Date when Span Status was checked.
Alarms Presence or absence of alarm conditions. See
Loopback Indicates Off condition or identifies specific active loopback. See
Power Level Indicates the HDSL Power Feed voltage mode: High or Low.
Margins Indicates the excess signal to noise ratio at all HDSL ports, relative to a
10
First value is current margin.
Second value is minimum margin since last cleared.
Third value is maximum margin since last cleared.
N/A means that the margin is not available.
Pulse Indicates the attenuation of the 2B1Q pulse from the distant end. HiGain
Attenuation operates with pulse attenuations up to 28 dB. This value is related to the
cable pair's 196 kHz loss. The pulse attenuation is a more direct indication
of the loop attenuation to the 2B1Q signal than the 196 kHz loss.
INS Loss Indicates the approximate attenuation of the HDSL loop at 196 kHz. It is
generated by multiplying the pulse attenuation by 1.25.
PPM Offset Indicates the relative offset of the crystal oscillator in the HRU-402 from
the HLUs crystal oscillator. Any value between ± 100 is adequate.
HDSL 24 The number of one second intervals that contained at least one HDSL CRC
Hour ES error. This value is a running total of the last 24 Hours.
HDSL 24 The number of seconds the HDSL loop was out of synchronization.
Hour UAS
DS-1 BPV The number of seconds in which at least one bipolar violation was
Seconds (ES) detected on the DS-1 input.
DS-1 UAS The number of seconds during which the DS-1 input signal was absent
Count (125 or more consecutive 0s).
Frame type Type of DS-1 framing used on the input stream (SF, ESF, Unframed or No
Activity).
Code type Type of DS-1 line coding used (AMI, B8ZS, AMI: Zero Byte Time Slot
Interface[ZBTSI] or B8ZS: ZBTSI). The latter two conditions indicate the
code type that is being received when HiGain is set to its ZBTSI mode. In
either the AMI or B8ZS DS-1 code mode, it displays the selected code as
opposed to the code type that is actually being received, which it displays
when the DS-1 CODE option is set to AUTO.
HRU-402 List 1 and List 3
-7
Bit Error Rate.
November 5, 1998
Using the Maintenance Terminal
Table 10.
Table 8.
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