T320 LED Overview

Craft Interface LEDs

The craft interface is the panel on the front of the router that displays system status messages and allows you to troubleshoot the router. The craft interface is located at the top of the chassis above the FPC card cage. It contains LEDs, buttons, and an LCD showing status messages for the router.

To display system alarm messages on the LCD, see T320 Chassis and Interface Alarm Messages Overview.For more information about using the craft interface, see T320 Craft Interface Description.

• Host subsystem LEDs—Three LEDs (one green MASTER, one green OK, and one red FAIL) indicate the status of each host subsystem. The host subsystem LEDs are located on the upper right of the craft interface, and are labeled HOST0 and HOST1.

  See T320 Craft Interface Host Subsystem LEDs.

• SIB LEDs—Two LEDs (one red FAIL and one green OK) indicate the status of each SIB. The SIB LEDs are located on the upper right of the craft interface, and are labeled SIB0 through SIB2.

  See T320 Craft Interface SIB LEDs

• FPC LEDs—Two LEDs (one red FAIL and one green OK) indicate the status of each FPC. The FPC LEDs are located along the bottom edge of the craft interface, and are labeled FPC0 through FPC7.

  See T320 Craft Interface FPC LEDs.

• Alarm LEDs—One large red circular LED and one large yellow triangular LED, located on the upper left of the craft interface, indicate two levels of alarm conditions. You can determine the cause of the alarm condition by looking at the LCD on the craft interface.

  See T320 Craft Interface Alarm LEDs and ACO/LT Button.

T320 Component LEDs

• SIB LEDs—Three LEDs on each SIB faceplate—ACTIVE, OK, and FAIL—indicate the status of that SIB.

  See T320 SIB LEDs.

• Control board LEDs—Three LEDs on each control board faceplate indicate the status of that control board. If no LEDs are lit, the control board is not receiving power.

  See T320 Standard Control Board and T-CB LEDs.

• PIC LEDs—Each port on each PIC has an LED that indicates the status of the port.

  See the T320 Core Router PIC Guide.

• SCG LEDs—Three LEDs on each SCG faceplate indicate the status of that SCG.

  See T320 SCG LEDs.

• Power supply LEDs—One LED on each power supply faceplate indicates the status of that power supply.

  See T320 Power Supply LEDs.

• Routing Engine LEDs—One or more LED on each Routing Engine faceplate indicates the status of that Routing Engine or disk activity.
  • T320 RE-600 LEDs
  • T320 RE-1600 LEDs
  • T320 RE-2000 LEDs