This read-only counter tracks how many times the card's Peabody bus LSB state has transitioned upward, for example moving from idle toward monitoringBus. An admin watches this counter to gauge how often the card is re-establishing its bus state, since frequent transitions can indicate an unstable link to the Peabody backplane rather than a card that acquired the bus once and stayed stable. For example, a rapidly incrementing teraTDMPeabodyTransitionUpCount alongside CRC errors would point to a card repeatedly losing and regaining bus synchronization.