5 – Diagnostics/Troubleshooting Power-On Self Test Diagnostics
5.2.1.1
Internal Firmware Failure Blink Pattern
An internal firmware failure blink pattern is 2 blinks followed by a two second pause. The 2-blink error pattern indicates that the firmware has failed, and that the switch must be reset. Momentarily press and release the Maintenance button to reset the switch.
2 seconds
5.2.1.2
Fatal POST Error Blink Pattern
A system error blink pattern is 3 blinks followed by a two second pause. The
3-blink error pattern indicates that a POST failure or a system error has left the switch inoperable. If a system error occurs, contact your authorized maintenance provider. Momentarily press and release the Maintenance button to reset the switch.
2 seconds
