ADC H2TU-C-319 List 4E Manuel D’Utilisation
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Front Panel
LTPH-UM-1049-02, Issue 2
4
January 9, 2002
H2TU-C-319 List 4E
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 LBK pushbuttons reactivates the display and restarts the 5-minute
timer. Refer to
illuminates when power is initially applied. To conserve power the display only remains on for
5 minutes. Using the MODE or LBK pushbuttons reactivates the display and restarts the 5-minute
timer. Refer to
for a listing of the four-character messages.
MODE and LBK system
option pushbuttons
option pushbuttons
Permits user options to be monitored and modified without the need of a maintenance terminal. Used
to initiate all HiGain loopbacks and test states as well as to display DSX-1 line parameters and line
unit identity.
to initiate all HiGain loopbacks and test states as well as 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.
Flashing green
HDSL2 acquisition.
Red
Fuse alarm.
Flashing red
System alarm.
Yellow
An H2TU-C Customer Remote Loopback (CREM) or a Network Local Loopback (NLOC) is in effect.
Flashing yellow
H2TU-C is in an Armed state.
DSX-1 access jacks
BRG
Provides non-intrusive bridging jack access to (IN) and from (OUT) the HDSL2 span at the
MUX DSX-1 interface. Allows the two DS1 payloads to be monitored.
MUX 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 MUX DSX-1 interface.
Breaks the IN and OUT paths to permit test signal insertion and retrieval.
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.
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.
Equipment Catalog Item (ECI) bar code number.
List number
Identifies the list number of the H2TU-C.