Section 5, User Interface Guide - UIG-510, Status61186003L1-1D 5-21DS3 StateStateThis field displays the current state of the DS3 network for the specified M13 MUX module.Table 5-2 lists the possible conditions.AlarmThis field displays the current alarm condition for the M13 module. Table 5-3 lists thepossible alarm conditions.Table 5-2. DS3 State ConditionsCondition DescriptionNormal The MX2820 (M13 MUX module) is ready to pass data.Alarm The unit is currently receiving an alarm condition. Table 5-3 lists thealarms.Test The unit is currently in test mode.Alarm/Test The unit is in an alarm condition and in test mode.Table 5-3. DS3 Alarm ConditionsAlarm (Condition) DescriptionNone No alarms are currently being received.RAI This M13 MUX module is receiving an Remote Alarm Indication (RAI)(yellow) alarm from the network. This alarm is a signal sent backtoward the source of a failed transmit circuit. The X-bits (X1 and X2)are set to zero.LOS The M13 MUX module has lost the Rx signal.AIS The M13 MUX module is receiving an Alarm Indication Signal (AIS)(blue) alarm from the network. AIS alarms occur when consecutive1010s are received in the information bits. This indicates there is atransmission fault located either at the transmitting terminal orupstream from the transmitting terminal.LOF This alarm condition indicates the M13 MUX module detects a fram-ing loss from the network.XCV The M13 MUX module is receiving excessive code violations from thenetwork, which are exceeding the threshold set by the XCV Thresholdparameter.TLOS The transmitter has failed. This alarm condition indicates a Tx loss ofsignal.IDLE The M13 MUX module detects an idle sequence from the network.Service is immediately available for use.