13LED DiagnosticsThe PCX2600 has five status LEDs for diagnostics. You can monitor the LEDs duringinstallation and during normal operations.Table 1 shows PCX2600 status LEDs and identifies what each LED light means. Thistable will help you to diagnose problems.Function Color DefinitionCable Green - dark for no downstream RF carrier present or poweroff- flashing slowly(*1) for downstream RF carrier presentand ranging in progress- flashing fast(*2) for registration in progress- solid for the Cable Modem registered and ready totransfer dataPC Green - dark for no carrier to/from PC present or power off- solid for carrier to/from PC presentData Green - dark for no user data going through the Cable Modemor power off- flashing for user data going through the Cable ModemTest Amber - dark for initial self-test of the Cable Modem OK(*3) orpower off- flashing for initial self-test of the Cable Modem inprogress(*3) or software down loading of the CableModem in progress- solid for self-test failure of the Cable ModemPower Green - dark for power off- solid for power onTable 1 Status LEDs(*1) flashing slowly : flashing every 2 seconds (approximately)(*2) flashing fast : flashing every 0.1 second (approximately)(*3) It takes about 30 seconds to complete the self-test of the Cable Modem after power on.Then searching the downstream RF carrier will be started.