Chapter 2 Introduction Back Panel LEDs© 2012 Harmonic Inc. 19 Electra 1000, Version 3.0, Rev M2.10.8 Serial Data PortThe serial data port may be supported at some future time.2.11 Back Panel LEDsThe following sections describe the back panel LEDs and their functions.2.11.1 Main Board LEDsThe back panel contains two LEDs on the main board. Table 2-6 describes the LEDs locatedon the main board.2.11.2 Video Lock LEDsEach video port has an associated Video Lock LED. Table 2-7 describes the LED located oneach video port.2.11.3 Audio Port LEDsEach AIC contains a status LED. Table 2-8 describes the LED located on each AIC.Table 2-6: Rear Panel Main Board LEDsLED Color DescriptionLocator Blue The Locator LED lights when this encoder is enabled throughNMX. Use the Locator LED to help you identify a specific chassisin a rack.Fault Red The Fault LED lights when the application software detects analarm. The front panel and back panel Fault LEDs light at the sametime.Table 2-7: Rear Panel Video Lock LEDsLED Color DescriptionVideo 1Video 2Green When illuminated and steady, the Video Lock LED indicates thatthe video signal is locked. When off, the Video Lock LED indicatesthat the encoder has lost video sync.Table 2-8: Rear Panel Audio Port LEDsLED Color DescriptionSTAT Blue The Audio Port LED is on during bootup as the audio input cardcomes online. The LED is off during normal operation.