TITLE
    PCI Token Ring Card: LED Indicators
Article ID:
Created:
Modified: 		30057
7/2/97
7/3/97
TOPIC


    This article describes the LED lights on the PCI Token Ring Card.

DISCUSSION


    PCI Token Ring Card LED's description:


    Lights:

    Amber         Green             Explanation

    Startup sequence

    Blinking      Blinking          Awaiting initialization
    Off           Off               Card being initialized or computer powered off
    Off           Blinking          Passed diagnostics; card waiting to open
    Off           On                Card open and operating correctly

    Operating conditions

    Off           On                 erating correctly
    Blinking      On                 Possible problem

    Problem indicators

    Blinking      Off               Card is not open (indicates wire fault or self-test failure)
    Blinking      On                 Detected "beaconing" or hard error
    On            On                 Card has failed

    Notes:
    • Beaconing is the card's signal to other devices on the network that a hard error has occurred. Beaconing can in the card removing itself from the network and conducting self-tests to determine if it is causing the problem.
    • A hard error is a problem that requires removal of the source of the error or reconfiguration of the network before the network can resume reliable operation.
    • The card is open when it has established communications with other devices on the network.
    • A wire fault is an error caused by a break or a short circuit in the cable that connects the card to its access unit.

Document Information
Product Area: Computers
Category: Cards
Sub Category: Networking Cards
Keywords:

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