CopperOptics 150-1342-02 Manual - Página 12
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Revision 01
Term
MARGINS
Indicates the excess signal to noise ratio, at either the COT or RT, relative to a 10
is the current margin, cr is the minimum margin since last cleared, mx is the maximum value since
cleared, and N/A means Not Available. The normal range of a typical margin is from 22 to 6 dB.
PULSE
Indicates the attenuation of the 2B1Q pulse from the distant end. PG-Flex operates with pulse
ATTENUATION
attenuations in excess of 30 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. The normal range of pulse attenuation is from 1 to 32 dB
PPM
Indicates the relative offset of the crystal oscillator in the RT Line Unit from the COT Line Unit's
crystal oscillator. Any value between -64 and +64 is adequate. Values outside this range indicate out
of tolerance components or excessive temperature drift of critical components.
HDSL 24 Hour
The number of 1-second intervals that contained at least one CRC error. This value is a running total
ES (Errored
of the last 24 hours.
Seconds)
The number of seconds the HDSL loop was out of synchronization. This value is a running total of
HDSL 24 Hour
UAS
the last 24 hours.
(Unavailable
Seconds)
Copyright © 1996, PairGain Technologies, Inc. PairGain is a registered trademark, CopperOptics and PG-Flex are trademarks of
PairGain Technologies, Inc.
Page 12
TABLE 4. GLOSSARY OF PG-FLEX TERMS
Definition
-7
Bit Error Rate. mn