Nortel HomeOffice II, Руководство пользователя

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8 Meridian HomeOffice II
Description Draft 01.02
Functionality
Introduction
This topic summarizes the features provided by the HLC. Refer to Chapter 2 of
this guide, “Hardware installation,” for step-by-step setup instructions.
Self-test
The HLC performs test functions to guarantee system integrity. The board
completes a self-test each time it is turned on or reset. The faceplate LED blinks
three times, then remains on until the switch enables the card, indicating a
successful Self-Test.
If the LED blinks repeatedly at one-second intervals, try reseating the card at the
switch by lifting the ejector tabs and pulling the HLC out. This breaks the
connection between the card and the backplane. Then reinsert the card.
If the HLC still does not complete a successful Self-Test, see “Unsatisfactory
Flash” on page 175 for instructions on how to revert the HLC to the factory
default firmware load residing in the E-PROM module.
If the card still does not pass its Self-Test, it must be returned to the factory for
service. See “Caution” on page 18.
User tests
You can choose from several available testing options. The HLC supports the
following tests:
■
all switch tests supported by an XDLC
See documentation for your specific switch for further details.
■
a Connectivity Test to verify the connection between the HLC and the RDB
See “Connectivity test” on page 155.
■
a Phone Test to verify signaling between the digital telephone and the RDB
See “Phone test” on page 156.