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700-712-100-01, Revision 01
Overview
UTU-712 and ETU-762 List 1
May 10, 1999
5
Table 3.
Line and Desktop Unit Front Panel Components
Name
Function
HDSL SYNC LED
Displays synchronization state for the HDSL loop.
HDSL ALM LED
Displays alarm state for the HDSL loop.
I/F ALM LED
Displays alarm state for the Nx64k serial data port.
LOC LPBK LED
Displays local (LOC) loopback state.
LOC LPBK Button
Activates the local HDSL analog loopback.
REM LPBK LED
Displays remote (REM) loopback state.
REM LPBK Button
Activates the remote interface loopback.
V.24 (RS-232) console
port
Provides bi-directional communication between the unit and an external maintenance terminal through
a V.24 (RS-232C) interface to allow configuration and performance monitoring through the console
screen menus as described in
“System Configuration” on page 22
. This connector can also be used to
download new firmware to the line unit’s flash memory as described in
“Firmware Download Utility” on
.
This port is configured as DCE (see
“Maintenance Terminal Connection” on page 22
for
pinouts).
Bar code label (all units)
Contains the serial number and part number of the unit, as indicated in both bar code and text format.
Also contains the configuration number of the unit, as indicated by "CFG: R
nn,
" where
nn
is the
configuration number. For example, CFG: R07 would indicate configuration number 07.
Warranty control
number label (UTU-712
Indicates the beginning year and month of the line card warranty. Also indicates the line card revision
number. For example, a warranty control number of "803R07" would indicate a warranty beginning in
the year 1998 (8), during the month of March (03), and line card revision number R07.
Unit ID label (ETU-762)
Identifies the model number, manufacturer, part number, and input voltage range of the ETU. Includes
the CE mark, certifying that the unit is in compliance with European Telecommunications Terminal
Equipment (TTE) directives 89/336/EEC and 93/68/EEC. See