CopperOptics 150-1218-02 Руководство - Страница 15
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MARGINS
PULSE
ATTENUATION
PPM
VHDSL 24 Hour ES
(Errored Seconds)
VHDSL 24 Hour UAS
(Unavailable Seconds)
DS1 BPV Seconds
(ES)
DS1 UAS Count
Frame type
Code type
Ver Vw.xL
Vw.xR
yzL
yzR
TABLE 5. GLOSSARY OF HIGAIN TERMS
Indicates the excess signal to noise ratio, at either the HLU or HRU, relative to a 10-
7 Bit Error Rate. 1st value is current margin, 2nd value is minimum margin since
(C)leared last, 3rd value is maximum value since cleared and NA means Not
Available.
Indicates the attenuation of the 2B1Q pulse from the distant end. HiGain-2 operates
with nominal pulse attenuations up to 28 dB. This value is related to the cable pair's
392 kHz loss. The pulse attenuation is a more direct indication of the loop
attenuation to the 2B1Q signal than the 392 kHz loss.
Indicates the relative offset of the crystal oscillator in the HRU-612 from the HLU-
611's crystal oscillator. Values usually range from -100 to +100.
The number of 1 second intervals that contained at least 1 CRC error. This value is
a running total of the last 24 Hours.
The number of seconds the VHDSL loop was out of sync.
The number of seconds in which at least 1 bipolar violation was detected on the DS1
input.
The number of seconds during which the DS1 input signal was absent (125 or more
consecutive 0's)
Type of DS1 framing used on the input stream (SF, ESF, Unframed or No Activity)
Type of DS1 line coding used (AMI, B8ZS, AMI : ZBTSI or B8ZS : ZBTSI). The
latter two conditions indicate the code type that is being received when HiGain-2 is
set to its ZBTS mode. In either the AMI or B8ZS DS1 code mode, it displays the
selected code as opposed to the code type that is actually being received.
"w.x" = the software version number of the HLU
"w.x" = the software version number of the HRU.
"yz" = List number of the HLU
"yz" = List number of the HRU.
Definition
Section 150-612-100
Revision 02
Page 15