Cisco MGX 8200 Series Edge Concentrators

Field Notice: Removal of W1 from the AUSM-8 Port Cards in the Field

Revised October 14, 1997

Products Affected

All AUSM-8 cards.

Problem Description

An AUSM-8 card may "hang" and not pass data.


The AUSM-8 has a jumper labeled "W1" which should be removed. Several manufacturing runs of these cards were shipped with W1 installed, which disables a Watchdog Timer. With W1 removed the Watchdog Timer is enabled, and the "hung" card will reset itself and restore traffic continuity without external intervention. "Hung" cards with W1 still installed can be restored to operation by resetting the card.

RCN Number

Not Available.

Bug Details

Not Applicable.

Additional Information

It is recommended that a maintenance window be set for the removal of W1 from the AUSM-8 cards unless the AUSM-8 is displaying signs of being "hung," such as not passing traffic. No other action is needed.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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