Owner`s manual

SF72 Storage Enclosure Operation 3–15

3.4 Applying Power to the Enclosure

This section describes the correct procedure for powering up an SF72

storage enclosure. Perform all steps in the order in which they are

presented.

NOTE

Do not change the DSSI ID setting while the power is on.

Apply power to the enclosure as follows:

1. Verify that the drive dc power switches and all disk ISE control

buttons on the front of the enclosure are in the off (0) position.

2. Set the ac power switch to the on (1) position to apply ac power to the

dc power supply.

3. Verify that the power is on by checking that the fan starts and there

is normal airﬂow through the enclosure.

NOTE

It is possible to have airﬂow through the enclosure and not

have output voltage. This indicates that the line voltage

selector switch, located behind the rear panel of the enclosure,

is in the wrong position.

Set the ac power switch to off (0) and reset the line voltage

selector switch.

4. Verify that the termination power indicator is on.

5. Verify that the bus mode indicator is on, only if that SF72 is in the

split-bus mode.

6. Turn the drive dc power switch on. Verify that the green indicator

lights.