ADC HIGAIN HDSL2 Manual page 14

Front Panel
Message Full Name
NLOC Network Local Loopback
NREM Network Remote Loopback
RULB Remote Unit Loopback
SMJK Remote SmartJack Loopback
DIAGNOSTIC MESSAGES
A = xx Maximum Loop Attenuation
ACQ Acquisition
AnL Acquisition n Loop
ARM HiGain HDSL2 System Armed
BAD RT? No Response from H2TU-R
FERR Framing Bit Error Occurred
FLDL Flash Download
HES HDSL2 CRC Error
LBPV Local Bipolar Violation
M=xx HDSL2 Loop Margin
MNGD Managed
PWR FEED OFF Power Feed Off
PWR FEED ON Power Feed On
SIG Signaling
SnL Synchronization n Loop
SYSTEM INFORMATION MESSAGES
CODE xxxx Line Code: AMI or B8ZS
FRM xxxx Frame: SF, ESF, UNFR
LATT xx Loop Attenuation
LIST xx H2TU-C-231 List Number
MARG xx Margin
VER x.xx H2TU-C-231 Software Version Number The software version number x.xx.
(a) System information messages are displayed in scroll mode. To scroll through the messages, press the MODE button for 3 or
more seconds.
6
Table 2. Front-Panel Display Messages (Continued)
Description
DSX-1 signal is looped back to the network at the H2TU-C.
DSX-1 signal is looped back to the network at the H2TU-R.
Dual loopback at the H2TU-R.
DSX-1 signal is looped back to the network at the H2TU-R SmartJack module.
The Attenuation (A) message appears followed by xx, where xx is the loop
attenuation of the longest (maximum loss) span measured in dB.
The multiplexers of the H2TU-C and H2TU-R are trying to establish
synchronization over the HDSL2 loop of Span 1.
The multiplexers of the two devices on Span n are trying to establish
synchronization with each other, where n is the number of the span.
Armed to respond to Intelligent Repeater Loop (ILR) codes.
The H2TU-C does not receive any response from the H2TU-R and all
HDSL2 loop conditions are normal. Therefore, the integrity of the H2TU-R
or the HDSL2 loop is questionable.
Framing bit error occurred at H2TU-C DSX-1 input.
Flash download of firmware updates. Contact Customer Service for
update procedures (see
H2TU-C HDSL2 Loop Cyclical Redundancy Check (CRC) error.
A bipolar violation has been received at the DSX-1 input to the H2TU-C-231.
Indicates the power of the received HDSL2 signal relative to noise (S/N
with respect to 21.5 dB). Any value of 6 dB or greater is adequate for
reliable system operation.
The H2TU-C-231 is under control of the HMU-319 network management
unit. In this state, the front-panel craft port and pushbuttons are disabled.
HDSL2 span power has been turned off by setting the PWRF option to off,
or HDSL2 span power has been turned off by use of the A1LB, A2LB, and
A5LB Intelligent Office Repeater (IOR) Power Down code.
Indicates that the HDSL2 loop is not grounded or shorted.
The transceivers of the H2TU-C and H2TU-R are trying to establish
contact with each other over the HDSL2 loop of Span 1.
The transceivers of the two devices on Span n are trying to establish
contact with each other, where n is the number of the span.
(a)
The line code that H2TU-C-231 is receiving at its DSX-1 interface, if the
DS1 option is set to AUTO. Otherwise, it mimics either of the other two
DS1 line code settings, Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS).
Defines the type of frame pattern being received from the DSX-1:
SuperFrame (SF), Extended SuperFrame (ESF), or Unframed (UNFR).
The current loop attenuation threshold setting is measured in dB.
The list number of the H2TU-C-231.
The current margin threshold setting is measured in dB.
October 2, 2000
152-231-116-01, Revision 01
"Appendix D - Product Support" on page 66).
H2TU-C-231 List 1F