PairGain ETU-772, Быстрое руководство по установке, Страница: 11 / 32

700-722-900-02, Revision 02 Overview
UTU-722 and ETU-772 List 1 June 21, 1999 5
UTU and ETU Front Panel Components
Item 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 the Nx64k interface (I/F) alarm state.
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.
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-722) Indicates the beginning year and month of the line card
warranty. Also indicates the line card revision number. For
example, warranty control number "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-772) 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.