T3SU 300 LEDs

Version 1
    Article ID: 1914
    Q&A

     

     

      T3SU 300 LEDs


     

    Q:

     

    A:

     

     

    • IN SERVICE: This LED is active when a valid signal is being received on the DS3 interface.

     

    • IN TEST: This LED is active when the network interface has been put in loopback by the service provider.

     

    • ALARM: This LED is active when the DS3 receive signal contains framing errors, a yellow alarm is received from the far end unit, or other alarm messages are received from the network.

     

    • LOS: This LED is active when no receive signal from the network is detected on the Rx (in) circuit.

    DTE Port LEDs:

     

    • STATUS: This LED indicates the following conditions:

             -- Off: No option card is installed.         -- Flashing green: Interface is available but not configured.         -- Solid green: Interface is available and configured.         -- Solid red: DTE fault condition (for HSSI interface, no clock from DTE).         -- Solid yellow: For HSSI interface, terminal available (TA) signal inactive.

    • IN TEST: This LED is active when the DTE interface is in a loopback condition or is performing a BERT test.

     

    • TD: This LED is active when the T3SU 300 DTE port is transmitting data.

     

    • RD: This LED is active when the T3SU 300 DTE port is receiving data.