Chapter 4. Status4-6 MX2800 STS-1 User Manual 61200659L1-1with the exception of the S WITCHED condition (which is clearedmanually).To clear the SWITCHED condition, select A CKNOWLEDGE A LARMS(ACO) or push the ACO button on the front panel. See the sectionsACO Buttons on page 2-12 and Acknowledge Alarms (ACO) onpage 4-12 for more information. Possible alarm types are listed inthe following chart:Card A/Card BThese fields display the current state of the two controller cards.Possible states for the controller cards are listed in the followingchart:Condition DescriptionSupply Failure A power supply card has failed.Card Failure A controller card is not passing data.ExcessiveSwitchesThe MAX S WITCHING T HRESHOLD has beenexceeded. See Max. Switch Threshold on page3-6.Switched A card switch has occurred.Condition DescriptionNot Installed No controller card is installed in this slot.Stand By The controller card is ready to pass data, but iscurrently acting as a backup card.Active The controller card is acting as the primary card.Failure The controller card has failed and needs to bereplaced.
