ADC HiGain H2TU-C-319 List 4E User Manual page 14

Front Panel
Message Full Name
LOOPBACK MESSAGES
CLOC Customer Local Loopback
CREM Customer Remote Loopback
NLOC Network Local Loopback
NREM Network Remote Loopback
SMJK Remote SmartJack Loopback
DIAGNOSTIC MESSAGES
A = xx Maximum Loop Attenuation
ACQ Acquisition
ARM HiGain 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
6
Table 2. Front-Panel Display Messages (Continued)
Description
Signal from customer is looped back to the customer at the
H2TU-R.
Signal from customer is looped back to the customer at H2TU-C.
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.
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 (or the H2TU-C and
first regenerator) are trying to establish synchronization over the
HDSL2 loop of Span 1.
Armed to respond to Intelligent Repeater Loop (ILR) codes.
The H2TU-C receives no 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 upgrades. Contact Customer Service
for upgrade procedures (see
page
H2TU-C HDSL2 Loop Cyclical Redundancy Check (CRC) error.
A bipolar violation has been received at the DSX-1 input to the
H2TU-C.
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 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 PWFD option
to off, or HDSL2 span power has been turned off by use of the A2LB
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 (or the H2TU-C and
first regenerator) are trying to establish contact with each other over
the HDSL2 loop of Span 1.
January 9, 2002
"Appendix D - Product Support" on
75).
LTPH-UM-1049-02, Issue 2
Continued
H2TU-C-319 List 4E