Step 5. Affix The Mcm/L3/Passthrough Plug Map To The Right Frame Extender; Using The Map Label; Step 6. Observe This Safety Notice During Installation - IBM pseries 690 Installation Manual

Step 5. Affix the MCM/L3/Passthrough Plug Map to the Right Frame
Extender
With the front cover open, locate the right frame extender (located on the opposite side of the unit
emergency power off (UEPO) switch. The 50-mm (approximately 2 inch) wide label should be installed
vertically, along this extender, approximately in line with EIA frame positions 22 - 28.
The trifold label has two hook-and-loop strips attached to the back. Remove the adhesive backing from the
fastener and attach it to the frame extender as described above. A small piece of fastener is used to help
keep it folded while attached to the frame.

Using the Map Label

Whenever an MCM or passthrough module is added as an MES, or replaced or reseated during a repair
action, a sticker with the module's serial number is provided for use with the map label according to its
plugging location. If the serial number label is not available, record the serial number of the MCM or
passthrough module when it is added, reseated, or replaced, along with the number of times plugged. This
module is then allowed three plugs with each plug recorded on label. If the module must be removed and
reinstalled a fourth time, it must be replaced from field spares or with an MES.
The process is similar for the L3 module, except that a separate serial number sticker is not provided.
Instead, the serial number is located on a sticker attached to the L3 heatsink. Record the serial number of
the L3 module when it is added, replaced, and reseated, along with the number of times plugged. If the
module must be removed and reinstalled a fourth time, it must be replaced from field spares or with an
MES.
In addition, whenever an MCM, passthrough, or L3 module is replaced or reseated, the interposer plug
count menu, which is one of the service processor menus, must be updated. See the "Interposer Plug
Count Menu" in the Eserver pSeries 690 Service Guide for more information.

Step 6. Observe this Safety Notice During Installation

DANGER
An electrical outlet that is not correctly wired could place hazardous voltage on metal parts of
the system or the devices that attach to the system. It is the responsibility of the customer to
ensure that the outlet is correctly wired and grounded to prevent an electrical shock.
Use one hand, when possible, to connect or disconnect signal cables to prevent a possible
shock from touching two surfaces with different electrical potentials.
During an electrical storm, do not connect cables for display stations, printers, telephones, or
station protectors for communication lines.
CAUTION:
This product is equipped with a four-wire (three-phase and ground) power cables for the user's
safety. Use this power cable with a properly grounded electrical outlet to avoid electrical shock.
CAUTION:
This unit has more than one power supply cord. Follow procedures for removal of power from the
system when directed.
CAUTION:
Energy hazard, remove all jewelry before servicing.
16 Eserver pSeries 690 Installation Guide