Locating The New System Serial Number Label; Preparing The External I/O Expansion Unit - Sun Microsystems SPARC Enterprise T5120 Installation And Service Manual

4.10.1

Locating the New System Serial Number Label

The replacement chassis has a new system serial number. This serial number label is
located inside the left I/O boat bay.
In the following procedure, new serial number labels will be attached to the old
bezel, and the old bezel will be used with the new chassis.
New system serial number labels are not provided for the top cover. The old top
cover will not be used on the new chassis.
4.10.2

Preparing the External I/O Expansion Unit

The External I/O Expansion Unit must be powered off during this procedure.
1. Use an antistatic strap for this procedure.
2. Unpack the replacement chassis and place it on an antistatic work space.
Note – Use an antistatic work space that is wide enough to accommodate two
External I/O Expansion Units side by side (40 in./1000 mm).
3. Stop the domains that are connected to the External I/O Expansion Unit.
For information about stopping a domain, refer to the documentation for the
server.
4. Turn off the AC switches on both PSUs at the front of the External I/O
Expansion Unit.
5. At the rear of the External I/O Expansion Unit, disconnect the AC cords from the
internal AC cables.
6. Move the cable plate to the service position:
a. Loosen the cable plate locking screw(s) (item 3 in
b. Pull the cable plate toward you approximately 0.5 in./13 mm, then raise it
c. Push the cable plate forward to its service position (
7. Label all I/O cables.
4-22 External I/O Expansion Unit Installation and Service Manual for SPARC Enterprise T5xxx Servers • April 2011
approximately 0.75 in./20 mm, until the bottom of the plate is above the tops
of the support brackets.
cable plate rests on the support brackets.
The tabs on the sides of the cable plate should lie in the small notches on the
tops of the support brackets.
.
FIGURE 4-4
) so that the
FIGURE 4-4