10/100/1000BASE-T Port LEDsThe following table describes 10/100/1000BASE-T port LEDs (items 1 and 2 in Figure 2).C1048P 10/100/1000BASE-T Port LEDsLED DescriptionLink Link speed on port• Off: No link is up.• Solid green: The port is operating at 1000 Mbps.• Solid yellow: The port is operating at 10/100 Mbps.Activity Data transmission on port• Off: No transmit/receive activity and PoE power is off.• Flashing green: The port is actively transmitting/receiving and PoE power isoff.• Flashing yellow: The port is actively transmitting/receiving and PoE power ison.• Solid yellow: No transmit/receive activity and PoE power is on.System LEDsThe following table describes the system LEDs on the C1048P front panel (items 3 to 11 in Figure 2).C1048P System LEDsLED DescriptionPE ID | Stack When the C1048P is online and connected to a C9010, a scrolling port-extender ID (PE ID) from 0 to 255 displays in the left, seven-segment LED. Afixed stack-unit ID number from 0 to 7 displays in the right LED. If the C1048Pis not connected to a C9010, the PE ID LED is blank. For more information, seePre-provisioning a Port Extender.NOTE: The PE ID number displays as a scrolling three-digit number. Eachdigit displays briefly followed by a dash ( - ) before the next digit displays.A blank displays before the three-digit number repeats in the display. Forexample, the PE ID 175 displays 1, -, 7,-, 5, followed by a blank before thePE ID number repeats. Similarly, the PE ID 7 displays as 007: 0, -, 0, -, 7,followed by a blank.TemperatureTemperature status• Solid green: Normal operation; the temperature is below the minorthreshold of 140°F (C60°C).• Solid red: Warning condition; the temperature exceeds the major thresholdof 167°F (75°C).Power/LocatorInternal power status• Solid green: Normal operation• Blinking green: The PE locator is enabled.C1048P Hardware Description 7