152-319-100-02, Revision 02
Front Panel
H2TU-C-319 List 1 and List 1C
April 21, 2000
5
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
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-319 Customer Remote Loopback (CREM) or a Network Local Loopback (NLOC) is in
effect.
Flashing yellow
H2TU-C-319 is in an Armed (ARM) state.
DSX-1 access jacks
BRG
Provides non-intrusive bridging jack access to (IN) and from (OUT) the HDSL2 span at the DSX-1
interface. Allows the two DS1 payloads to be monitored.
LINE
Provides splitting jack access to (IN) and from (OUT) the HDSL2 span at the DSX-1 interface.
Breaks the IN and OUT paths to permit test signal insertion and retrieval.
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.
List number
Identifies the list number of the H2TU-C-319.
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.
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.
