Service manual

4
Power Off Switch
4-3
Repair Information
— The green LED associated with the Ethernet port blinks
momentarily while the port is tested.
— The green and amber LEDs associated with Fibre Channel
ports blink momentarily while the ports are tested.
After successful POST completion, the PWR LED remains
illuminated and all amber LEDs extinguish.
5. If a POST error occurs, go to MAP 0000: Start MAP to isolate the
problem.
Power Off Switch
Inform the customer the switch is to be powered off. Ensure the
system administrator quiesces Fibre Channel frame traffic through
the switch and sets attached devices offline.
To power off the switch, use the following steps:
1. Set the switch offline. Refer to Setting Online State (EFCM Basic
Edition) or Setting Online State (Element Manager) for
instructions.
2. Twist external power supply adapter cords counterclockwise to
unlock connections, then disconnect cords from threaded output
jacks at the rear of the switch.
IML or Reset Switch
An initial machine load (IML) or reset is performed at the switch
front panel using the RESET button. An IML does not cause
power-on diagnostics to execute and is not disruptive to Fibre
Channel traffic. An IML:
• Reloads switch firmware from FLASH memory.
• Resets the Ethernet LAN interface, causing the connection to the
browser PC or management server to drop momentarily until the
connection automatically recovers.
A reset is disruptive to Fibre Channel traffic and resets the:
• Microprocessor and functional logic for the control processor
(CTP) card and reloads the firmware from FLASH memory.