IBM 0551, Manual

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11. Attach the front cover. See “Installing the front cover on a 7311-D11, 5791, or 5794 expansion unit” on
page 140 or “Installing the front cover on the 7314-G30 or 5796” on page 139.
Attaching the RIO/HSL, power controller (SPCN), and power cables
You might need to attach the Remote I/O (RIO)/High Speed Link (HSL), System Power Control Network
(SPCN), and power cables to the system. Use the procedure in this section to perform this task.
For instructions on cabling and connecting your expansion units, see Enclosures and expansion units.
Powering on the system
You might need to power on the system. For information about powering on the system, refer to Start the
system or logical partition.
Installing the model 5786, or 7031-D24 into a rack
You might need to install the expansion unit into a rack. This section includes procedures so that you can
perform these tasks.
This procedure assumes that you are installing the expansion unit into an existing rack.If the rack is not
installed, follow the instructions in Chapter 2, “Installing the rack,” on page 3, and then return to this
procedure for instructions on installing the expansion unit into the rack.
When you have installed the expansion unit into the rack, you will need the instructions in Disk drives,
to connect and configure the 7031-D24 or 5786.
Note: This procedure applies only to the models that are designed to be mounted into a rack.
To install the expansion unit into a rack, perform the following steps:
Attention: Installing the rails in the rack is a complex procedure. To install the rails correctly, you must
perform each task in order. Failure to do so might cause rail failure and potential danger to yourself and
the expansion unit.
1. Read the “Rack safety notices” on page 106. Failure to read these notices could cause damage to the
equipment or injury to the installer.
2. Complete a parts inventory (See “Completing a parts inventory” on page 93).
3.
Locate the rack-mounting template
(A)
, the rack-mounting hardware kit
(B)
, and the system rail
assemblies
(C)
that were included with your expansion unit. See Figure 94 on page 93 for the relative
locations of these items. The system rails are identical.
Note: An 8-mm nut driver and a flat-blade screwdriver, represented in the following diagram, are not
listed in the inventory or included in the parts shipped, but these tools will assist you in completing
the installation.
92
Installing into a rack