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Front Panel 152-388-100-02, Issue 2
4 June 6, 2000 H2TU-C-388 List 1
Table 1. Front-Panel Description
Front-Panel Feature Function
Front-panel display Displays four-character status, provisioning, and alarm system messages. The front-panel display
illuminates when power is initially applied. To conserve power the display only remains on for
5 minutes. Using the MODE or SEL buttons reactivates the display and restarts the 5-minute timer.
Refer to Table 2 on page 5 for a listing of the four-character messages.
MODE and SEL system option
buttons
Permits user options to be monitored and modified without the need of a maintenance terminal.
Used to initiate all HiGain loopbacks and to display DSX-1 line parameters and line unit identity.
Status LED The status LED can report the following conditions:
Off Line power is off.
Green Normal operation.
Red Fuse alarm.
Flashing red HDSL2 acquisition or system alarm.
Yellow An H2TU-C-388 List 1 Customer Remote Loopback (CREM) or a Network Local Loopback (NLOC)
is in effect.
Flashing yellow H2TU-C-388 List 1 is in an Armed (ARM) state.
Craft port (RS-232) Provides bidirectional communication between the unit and an external terminal to allow
configuration and performance monitoring through the Maintenance Terminal screens.
CLEI and ECI bar code label Provides the human-readable Common Language Equipment Identifier (CLEI) code number and
the Equipment Catalog Item (ECI) bar code number.
List number Identifies the list number of the H2TU-C-388 List 1.
Configuration Number For some products the configuration number may contain either a standalone two or three-digit
configuration number or a five- or six-digit warranty configuration number as follows:
Digit 1 - Last digit of shipment year
Digits 2 and 3 - Shipment month
Digits 4, 5, and 6 - Configuration number
The configuration number identifies the version of the product. New configuration numbers usually
accompany changes in the last two characters of the CLEI code.
The configuration number is found on a small label attached to the unit. It is the last two numbers
(following the x) of a 13-character part number. For example: 150-1234-01-x01.