ADC H4TU-C-319 List 1 Line Unit User Manual page 14

Front Panel
Message Full Name
LOOPBACK MESSAGES
CDU1 Customer Doubler 1 Loopback
CDU2 Customer Doubler 2 Loopback
CLOC Customer Local Loopback
COLB Central Office Loopback
CREM Customer Remote Loopback
NDU1 Network Doubler 1 Loopback
NDU2 Network Doubler 2 Loopback
NLOC Network Local Loopback
NREM Network Remote Loopback
RULB Remote Unit Loopback
SMJK Remote SmartJack Loopback
DIAGNOSTIC MESSAGES
A=xx Maximum Loop Attenuation
ACQ1 or ACQ2 Acquisition 1 or Acquisition 2
ARM System Armed
BAD RT? No Response from H4TU-R
FERR Framing Bit Error Occurred
HxES HDSL4 CRC Error Loop 1 or Loop 2
LBPV Local Bipolar Violation
1=xx or 2=xx HDSL4 Loop Margin
MNGD Managed
PWR FEED OFF Power Feed Off
PWR FEED ON Power Feed On
SIG1 or SIG2 Signaling
SYSTEM INFORMATION MESSAGES
VER x.xx Software Version Number
LIST xx List Number
6
Table 2. Front-Panel Display Messages (Continued)
Description
DS1 signal from customer is looped back to the customer at H4D1
(111100).
DS1 signal from customer is looped back to the customer at H4D2
(111110).
DS1 signal from customer is looped back to the customer at the H4TU-R.
Dual loopback at the H4TU-C.
DS1 signal from customer is looped back to the customer at the
H4TU-C.
Signal is looped back to the network at H4D1 (110000).
Signal is looped back to the network at H4D2 (111000).
DSX-1 signal is looped back to the network at the H4TU-C.
DSX-1 signal is looped back to the network at the H4TU-R.
Dual loopback at the H4TU-R.
DSX-1 signal is looped back to the network at the H4TU-R SmartJack
module.
The Attenuation (A) message appears followed by xx, where xx is the
highest loop attenuation of all HDSL interfaces.
The multiplexers of the H4TU-C and H4TU-R are trying to establish
synchronization over HDSL4 Loop 1 or Loop 2.
Armed to respond to Intelligent Repeater Loop (ILR) codes.
The H4TU-C receives no response from the H4TU-R, and all HDSL4
loop conditions are normal; therefore, the integrity of the H4TU-R or
the HDSL4 loops is questionable.
Framing bit error occurred at H4TU-C DSX-1 input.
H4TU-C HDSL4 Loop 1 or Loop 2 Cyclical Redundancy Check (CRC)
error. (Loop 1 has display priority over Loop 2.)
A bipolar violation has been received at the DSX-1 input to the
H4TU-C-319.
Indicates the power of the received HDSL4 signal on each loop relative
to noise (S/N with respect to 21.5 dB). Any value of 6 dB or greater is
adequate for reliable system operation. (xx denotes lowest margin in
dB for Loop 1 and Loop 2.)
The H4TU-C-319 is under control of the HMU-319 network
management unit. In this state, the front-panel craft port and
pushbuttons are disabled.
HDSL4 span power has been turned off by setting the PWRF option to
OFF, or HDSL4 span power has been turned off by use of the A5LB
Intelligent Office Repeater (IOR) powerdown code.
Indicates that the HDSL4 loop power is applied and neither pair is
grounded.
The transceivers of the H4TU-C and H4TU-R are trying to establish
contact with each other over HDSL4 on Loop 1 or Loop 2.
(a)
The software version number of the H4TU-C-319.
The list number of the H4TU-C-319.
September 12, 2003
LTPH-UM-1031-03, Issue 3
Continued
H4TU-C-319 List 1