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I
NSTALLATION
To ensure proper installation of the HLU-388 List 5D:
1
Lift the front panel and align the HLU-388 List 5D with the shelf rails.
2
Slide the unit in and press the front panel down to secure.
P
OWER
When the HLU powers up, the four-character display illuminates and reports status
messages. If the HLU is not communicating with the next span device, the following
occurs:
1
Alarm and diagnostic messages display (see the Front Panel Alarm Messages and
Front Panel Diagnostic Messages tables inside), followed by the SELF TEST
message.
2
The Status LED turns yellow, indicating it has entered self-test mode.
If the HLU is communicating with the next span device, the following occurs:
1
The Status LED flashes green while acquiring each device in the system, and
turns a steady green when the entire system is operating without any alarms.
2
The four-character display reports margin (signal-to-noise ratio) readings and
insertion loss.
3
If the status LED is not solid green, the display reports alarm conditions (see the
Front Panel Alarm Messages table inside).
P
ROVISIONING
1
Access the Maintenance Terminal screens by pressing
times.
a
Set the date and time (select Set Clock from the Main Menu).
b
Set the circuit IDs (select View System Inventory).
2
Access the System Settings selection on the Main Menu to change the default
settings of any system parameters.
3
Access the View Troubleshooting screen to view a graphical analysis of any
potential system problems.
4
When the HLU is successfully installed and provisioned, clear Span Status,
Performance Data, Performance History, and Alarm History screens to ensure
accurate data and alarm reporting.
-
S
UP
EQUENCE
SPACEBAR
several
Continued
Þ
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