Front PanelLTPH-UM-1109-01, Issue 1

Table 2. Front-Panel Display Messages (Continued)

Message

Full Name

Description

 

 

 

NREM

Network Remote Loopback

DSX-1 signal is looped back to the network at the H2TU-R.

RULB

Remote Unit Loopback

Dual loopback 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

 

 

highest loop attenuation measured in dB.

ACQ

Acquisition

The multiplexers of the H2TU-C and H2TU-R are trying to establish

 

 

synchronization over the HDSL2 loop.

ARM

HiGain System Armed

Armed to respond to Intelligent Repeater Loop (ILR) codes.

BAD RT?

No Response from H2TU-R

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.

FERR

Framing Bit Error Occurred

Framing bit error occurred at H2TU-C DSX-1 input.

FLDL

Flash Download

Flash download of firmware upgrades. Contact Customer Service for

 

 

upgrades procedures (see “Appendix D - Product Support” on page 61).

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-231.

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-231 is under control of the HMU-319 network management

 

 

unit. In this state, the front-panel craft port and pushbuttons 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, or

 

 

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 are trying to establish contact

 

 

with each other over the HDSL2 loop.

 

 

SYSTEM INFORMATION MESSAGES (a)

 

CODE xxxx

Line Code: AMI or B8ZS

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).

FRM xxxx

Frame: SF, ESF, UNFR

Defines the type of frame pattern being received from the DSX-1:

 

 

SuperFrame (SF), Extended SuperFrame (ESF), or Unframed (UNFR).

LATT xx

Loop Attenuation

Current loop attenuation threshold setting is measured in dB.

LIST xx

List Number

List number of the H2TU-C-231.

MARG xx

Margin

Current margin threshold setting is measured in dB.

VER x.xx

Software Version Number

Software version number of the H2TU-C-231.

 

 

 

(a)System information messages are displayed in scroll mode. To scroll through the messages, press the MODE pushbutton for 3 or more seconds.

6

January 9, 2002

H2TU-C-231 List 2