HCT-SDH-155 Manual

LTC: loss of external clockRS: related to regenerator sectionLOF: loss of frame alignment (6)OOF: frame alignment (5)EFAS: frame alignment (1-4)TIM: trace identifying mark mismatch of regenerator sectionB1: error code monitoring of regenerator section, and BIP8 check errorMS: related to mux sectionAIS: remote alarm indication of mux sectionRDI: remote defect indication of mux sectionREI: remote error indication of mux sectionB2: error code monitoring of mux section, and BIP-24 check errorAU: related to administration unit pointerAIS: status indication signal of AU pointer alarmLOP: loss of AU pointer+PJE: positive AU pointer adjustment-PJE: negative AU pointer adjustmentNDF: AU pointer new data symbolINV: invalid AU pointerNEW: new AU pointerPAIS: AU pointer H1, H2 whole 1 alarm indication signalHP: related to high-order pathUNQ: high-order path unloaded or monitoring unloaded with signal alarmREI: remote error indication of high-order pathRDI: remote defect indication of high-order pathPLM: payload mismatch alarm of high-order pathTIM: trace identifying mark mismatch of high-order pathB3: error code monitoring of high-order path, and high-order B3 check errorTU: related to bypass pointerAIS: TU pointer alarm indication signalLOP: loss of TU pointer+PJE: positive TU pointer adjustment-PJE: negative TU pointer adjustmentNDF: new data flag of TU pointerINV: invalid TU pointerNEW: new TU pointerPAIS: TU pointer H1, H2 whole 1 alarm indication signalLP: related to low-order pathUNQ: low-order path unloaded or monitoring unloaded with signal alarm16