Operation Manual

Chapter 3 Installing the Electrical Supply 25
▼ To Power Off the System
Caution – Prior to turning off system power, exit from the operating system. Failure
to do so may result in data loss.
1. Where necessary, notify the users that the system is going down.
2. Back up system files and data.
3. Halt the operating system.
4. Continue with step a. or b., as appropriate.
a. Set the ON/STBY switch at the front of the system cabinet to the STBY
position and release it immediately to initiate a clean shut down followed by a
power off.
b. Set the ON/STBY switch at the front of the system cabinet to the STBY
position and hold it for five seconds to shut the system down immediately.
5. Verify that the System LED is off.
6. Disconnect the AC or DC power connector(s) from the rear of the system, or open
the external circuit breaker(s).
7. Verify that the Power LED is off.
Caution – Regardless of the position of the ON/STBY switch, where an AC power
cord remains connected to the system, potentially dangerous voltages are always
present within the power supply.
LW3User.book Page 25 Wednesday, November 10, 1999 9:00 AM