152-319-100-02, Revision 02
Front Panel
H2TU-C-319 List 1 and List 1C
April 21, 2000
7
LOOPBACK MESSAGES continued
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.
AnL
Acquisition n Loop
The multiplexers of the two devices on Span n are trying to establish
synchronization with each other, where n is the span number.
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, and all HDSL2
loop conditions are normal. 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 (see
“Appendix D - Product Support” on page 56
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-319.
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-319 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 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.
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.
SnL
Signal n Loop
The transceivers of the two devices on Span n are trying to establish
contact with each other, where n is the span number.
SYSTEM INFORMATION MESSAGES
(a)
CODE xxxx
Line Code: AUTO, AMI or B8ZS
The line code that the H2TU-C 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).
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-319 List Number
The list number of the H2TU-C-319.
MARG xx
Margin
The current margin threshold setting measured in dB.
VER x.xx
H2TU-C-319 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.
Table 2.
Front-panel Display Messages (List 1 Only) (Cont.)
Message
Full Name
Description
