4.18 Replace a Power Supply Unit (
Netra
1
240)
OVERVIEW
This procedure is used to replace a faulty power supply unit in a Netra 240
Administrative Workstation (AW). The Netra 240 AW has dual redundant power
supply units. One power supply can be hot-swapped while the other is still running,
without having to power off the AW.
Warning: Hands and fingers can be pinched while opening and closing the
levers on the power supply unit. Keep hands and fingers away from the base
and sides of the levers.
PROCEDURE
1. Locate the faulty power supply unit at the rear of the AW. The power supply
units are labeled on the top cover of the AW as PS 0 and PS 1.
2. Disconnect the power input cable from the power supply unit being replaced.
Caution: Do not remove the power input cable from the remaining power
supply unit. Doing so causes the system to go through an immediate
ungraceful shutdown.
3. Pull the lever on the back of the power supply unit down (FIGURE 4.18-1). This
disconnects the power supply unit from the power distribution board inside the
AW.
1. Registered trademark of Sun Microsystems, Inc.
235-200-150
October 2005
ADMINISTRATIVE WORKSTATION MAINTENANCE
Procedure 4.18
Issue 8.00O Page 4.18-1
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