Service manual

4
4-2
McDATA Sphereon 4400 Fabric Switch Installation and Service Manual
Repair Information
Procedural Notes
Observe the following procedural notes:
1. Follow all electrostatic discharge (ESD) precautions and
DANGER, CAUTION, and ATTENTION statements.
2. Before performing a procedure, read the procedure carefully and
thoroughly to familiarize yourself with the information.
Power On Switch
To power on the switch:
1. One alternating current (AC) power cord is required for each
external power supply. Ensure the correct power cords are
available.
DANGER
Use the supplied power cords. Ensure that the facility power
receptacle is the correct type, supplies the required voltage, and is
properly grounded. (D004)
2. Plug power cords into facility power sources and AC connectors
on each external power supply.
3. Connect each power supply adapter cord to a threaded output
jack at the rear of the switch.
4. Twist the cord clockwise to lock and secure the connection. When
the first adapter cord is connected, the switch powers on and
performs power-on self-tests (POSTs).
NOTE: For high availability, plug the power cords into
separate facility power circuits.
During POSTs:
— The green PWR LED on the switch front panel illuminates.
—The amber ERR LED on the switch front panel blinks
momentarily while the switch is tested.