Revision 01
June 12, 1997
Section 150-441-124
HiGain HLU-D41
PairGain Engineering - Plant Series
Page 43
DS1 BPV Seconds (ES)
The number of seconds in which at least 1 BPV was detected on the DS1 input.
DS1 UAS Count
The number of seconds during which the DS1 input signal was absent (125 or more
consecutive zeroes).
DSX
Digital System Cross-Connect frame. A bay or panel to which T-1 lines and DS-1
circuit packs are wired.
ES
Errored Seconds
ESAL
Errored Seconds Alarm
ESF
Extended Super Frame
FT1
Fractional T1
Frame type
Type of DS1 framing used on the input stream (SF or ESF).
HDSL
High-bit-rate Digital Subscriber Line
HDSL 24 Hour ES
(Errored Seconds)
The number of 1 second intervals that contained at least 1 CRC error. This value
is a running total of the last 24 Hours.
HDSL 24 Hour UAS
(Unavailable Seconds)
The number of seconds the HDSL loop was out of sync.
HDU
HiGain Doubler Unit
HLU
HiGain Line Unit
HRE
HiGain Remote Enclosure
HRU
HiGain Remote Unit
HLU/Ver w.x-y
"w.x" = software version number of the HLU-D41. "y" = list # of HLU-D41.
HRU/Ver a.b-c
"a.b" = software version number of the HRU-512. "c" = list # of HRU-512.
HDU1/Ver s.t-u
"s.t. " = the software version number of the HDU-217/219 #1. "u" = List number of
the HDU-217/219 #1.
HDU2/Ver f.g-h
"f.g" = the software version number of the HDU-217/219 #2. "h" = List number of
the HDU-217/219 #2.
LCD
Liquid Crystal Display
LED
Light Emitting Diode
LIU
Line Interface Unit
LOSW
Loss of Sync Word
MARGINS
Indicates the excess signal to noise ratio, at the HRU-512, HDU-217/219, or
HLU-D41 HDSL ports, relative to a 10
-7
BER. First value is current margin,
second value is minimum margin since last cleared, and third value is maximum
value since cleared. NA means Not Available (loop is not in sync). The normal
range of a typical margin is from 22 to 6 dB.
NEI
Network Element Interface
NI
Network Interface
NID
Network Interface Device
NIU
Network Interface Unit
NLOC
Network Local Loopback
NREM
Network Remote Loopback
NVRAM
Non-Volatile RAM
