9W006 and 9W007 261SYSTEM S TATISTICSWAN L1P StatisticsL1 DeactivatesThe number of times the upper ISDN layers requested layer 1 to deactivate.Loss of Frame (RED)The number of times layer 1 has detected a qualified loss of frame condition; excluding AIS (alarmindication signal).Loss of Signal (RED)The number of times layer 1 has detected an all zero signal (or complete lack of signal).AIS (Blue)The number of times layer 1 has detected a qualified unframed all ones signal.RAI (Yellow)The number of times layer 1 has detected a qualified RAI (remote alarm indication) signal.L AYER 1 PRI ERROR S TATISTICSNote: Layer 1 PRI error statistics apply to the line connected to the indicated slot.Bipolar ViolationsThe number or times there has been either a mismatch between encoding types (B8ZS not selected)or line noise.ESF CRC ErrorsThe number of Cyclic Redundancy Check (CRC) errors in the PRI framing format (ESF framingonly).Framing Bit ErrorsThe number of errors in the framing bits of the PRI layer 1 framing format.Recv Negative SlipsThe Number of PRI frames lost due to timing problems in the negative direction.Global Parity ErrorsThe number of parity errors seen across all transmit and receive channels.Recv Positive SlipsThe number of PRI frames lost due to timing problems in the positive direction.Recv Parity ErrorsThe number of receive parity errors.Xmit SlipsThe number of times an error has occurred in the host clock system. If the wander of the transmitroute clock is too great, data transmission errors will occur.Xmit Parity ErrorsThe number of transmit parity errors.
