HDSL 3192 HTU-C Installation and Maintenance Practice
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61247004L1-5A
and
consolidate current information for the HDSL, DSX-1, and DS1 interfaces. A
key to the information provided is found in the center of the screen and defined in
below. Arrows indicate the key applies to both the 3192 HTU-C and HTU-R.
An indication of Pair Reversal (if present) appears at the bottom of the first key column. Definitions
for this key are provided in
. Status and configuration information for the DS1 and
DSX-1 signals is located in the center of the screen near the bottom.
Table 11. HDSL, DS1, and DSX-1 Key Definitions
Indicator
Definition
LOSS
Pulse attenuation measurement
(1)
SYNC
HDSL loop 1 and loop 2 sync status
ES 15M/24H
Errored seconds
(2)
SES 15M/24H
Severely errored seconds
(2)
UAS 15M/24H
Unavailable seconds
(2)
1. LOSS is typically several dB less than the insertion loss measured at 200
kHz. The LOSS measurement is a better indication of the loop’s attenuation
of the 2B1Q signal than the insertion loss measured at a single frequency.
ADTRAN HDSL can operate on cables with an excess of 30 dB LOSS.
2. The first number is for the current 15-minute period and the second is the
current 24-hour period (Loop 1 and Loop 2 numbers are displayed).
Table 12. Pair Reversal Key Definitions
Indicator
Definition
FRAME
T1 framing format selected
CODE
T1 line coded selected
LBO
Line build-out selected (for DSX-1), Customer
signal of 0 or –15 dB (for DS1)
NIU
Network interface unit enabled
BPV
Bipolar violations detected (DSX-1 and DS1)
ES
Errored seconds (DSX-1 and DS1)
SES
Severely errored seconds (DSX-1 and DS1)
UAS
Unavailable seconds (DSX-1 and DS1)
Alarms
Lists current alarm condition status
