3. Status and Statistics3-16 May 2003 9000-A2-GB33-20NetworkModels 9123, 9128, 9623, 9720:LinkorFRMode and LinkStatusMulti-coloredYellow – Depending on service mode, PPP orLMI is down.Green – Depending on service mode, PPP orLMI is up.OFF – Leased line mode is active (9123 and9623), or the link is down.Models 9783, 9788:ATM ATM Status Multi-coloredYellow – ATM is down.Green – ATM is up.Models 9520, 9520-ILM, 9820-45M:TD Transmit Data Green ON – At least one non-idle cell was transmittedto the network during the sampling period.OFF – No non-idle cell was transmitted to thenetwork during the sampling period.RD Receive Data Green ON – At least one non-idle cell was receivedfrom the network during the sampling period.OFF – No non-idle cell was received from thenetwork during the sampling period.LMI LMI Status Green ON – LMI is operating successfully on theframe relay link.OFF – LMI is not operating successfully.Models 9520, 9520-ILM:OOF Out Of Frame Green ON – At least one OOF error was detected onthe network during the sampling period.OFF – No OOF error was detected on thenetwork during the sampling period.LOS Loss Of Signal Green ON – An LOS error was detected on thenetwork during the sampling period.OFF – No LOS error was detected on thenetwork during the sampling period.AIS Alarm IndicationSignalGreen ON – An AIS was received during the samplingperiod.OFF – No AIS was received during thesampling period.YEL Yellow Alarm Green ON – A Yellow Alarm condition existed duringthe sampling period (meaning that the far-endequipment reported an OOF or LOF error).OFF – No Yellow Alarm condition was detectedduring the sampling period.Table 3-1. Front Panel LEDs (2 of 4)Label Indication Color What It Means