ADC H2TU-C-388 HiGain, Руководство пользователя

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152-388-115-03, Issue 03 Front Panel
H2TU-C-388 List 1E April 21, 2000 7
NREM Network Remote Loopback DSX-1 signal is looped back to the network at the H2TU-R.
SMJK Remote SmartJack Loopback DSX-1 signal is looped back to the network at the H2TU-R
SmartJack module.
DIAGNOSTIC MESSAGES
A = xx Maximum Loop Attenuation The Attenuation (A) message appears followed by xx, where xx is
the loop attenuation of the longest (maximum loss) span, measured
in dB.
ACQ Acquisition 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.
ARM HiGain System Armed Armed to respond to Intelligent Repeater Loop (ILR) codes.
BAD RT? No Response from H2TU-R The H2TU-C receives no response from the H2TU-R. Therefore, the
integrity of the H2TU-R or the HDSL2 loop is questionable.
FERR Framing Bit Error Occurred Framing bit error occurred at H2TU-C DSX-1 input.
FLDL Flash Download Flash download of firmware updates.
Contact Customer Service for update procedures, as described in
“Appendix D - Product Support” on page 63 .
HES HDSL2 CRC Error H2TU-C HDSL2 Loop Cyclical Redundancy Check (CRC) error.
LBPV Local Bipolar Violation A bipolar violation has been received at the DSX-1 input to the
H2TU-C-388.
M=xx HDSL2 Loop Margin 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.
MNGD Managed The H2TU-C-388 is under control of the HMU-319 Network
management unit. In this state, the front-panel craft port and push
buttons are disabled.
PWR FEED OFF Power Feed Off HDSL2 span power has been turned off by setting the PWFD option
to off or by using the A2LB Intelligent Office Repeater (IOR) Power
Down code.
PWR FEED ON Power Feed On Indicates that the HDSL2 loop is not grounded or shorted.
SIG Signaling 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.
SYSTEM INFORMATION MESSAGES
(a)
CODE xxxx Line Code: AMI or B8ZS The DS1 line code setting: Alternate Mark Inversion (AMI) or Bipolar
with 8-Zero Substitution (B8ZS).
FRM xxxx Frame: SF, ESF, UNFR Defines the type of frame pattern being received from the DSX-1:
SuperFrame (SF), Extended SuperFrame (ESF), Unframed (UNFR).
LATT xx Loop Attenuation The current loop attenuation threshold setting measured in dB.
LIST xx H2TU-C-388 List Number The list number of the H2TU-C-388.
MARG xx Margin The current margin threshold setting measured in dB.
VER x.xx H2TU-C-388 Software Version The software version number (x.xx).
(a) System Information Messages are displayed in Scroll Mode. To scroll through the messages, press the MODE and SEL
buttons for 3 or more seconds.
Table 2. Front-panel Display Messages (Cont.)
Message Full Name Description