Installation guide

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Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Chapter 2 Preparing to Install
IGX 8420 or IGX 8430 Enclosure Installation
Power Supply Quantities
Table 2-5 shows the required number of power supplies for the different IGX systems. In Table 2-5, the
locations for primary (or minimal) power supplies are marked with an X. The primary supplies reflect
redundancy of AC inputs and backup supplies. An O indicates a slot that must have a supply, because
the card cage contains more than 12 cards.
In Table 2-5, the System column lists the IGX model number coupled with the number of AC inputs and
whether the single-AC input models have power supply redundancy. The table also shows the slot
locations A through F and the part number of the kit that contains all the pieces for the item in the System
column. Extra supplies for more than 12 cards (O) are not a part of a kit under Kit Part No. but have
another part number. The part number of a supply ordered to fill extra power demands is IGX-AC-PS.
Note that, with all power supply configurations, locations for the power supplies begin at the lowest
lettered slot on either side, and the occupied positions are contiguous. For example, in a dual AC system,
insert a supply in A, B, D, and E.
AC Installation in a Rack-Mount Cabinet
The procedures in this section apply to both the IGX 8420 and the IGX 8430 switch in a rack. (For
standalone systems, the power supplies are already installed.) To replace a power supply, follow the
steps in Chapter 5, “Replacing Parts on the IGX.”
Step 1 Attach the mounting brackets to the frame. For illustrative purposes, Figure 2-12 shows mounting
brackets at mid-frame and the back (using rear and mid-mount brackets is not a likely configuration). In
this view of the cabinet, the rear bracket shown is labeled with a -00. Brackets on the other side of the
system are labeled with a -01.
Step 2 This step might require more than one person. If rear-mount brackets are used, slide in the power supply
tray so that its back rests on the rear bracket.
For a mid-mount rack only, attach the tray to the mounting brackets with the head of each mounting
screw on the inside of the tray and each associated nut on the outside of the bracket.
Step 3 Secure the front of the power supply tray with the front screws. When tightening each of the front
screws, hold the adjacent front flange of the tray slightly to the outside so that the hinged door can freely
open and close. See “Front flange” in Figure 2-12. The space between the right-angle edge of the flange
and the edge of the hinged door should be approximately the width of a thumbnail.
Table 2-5 Locations of Power Supplies in an IGX 8420 or IGX 8430 Node
System ABCDEF
IGX 8420: 1 AC input, no power supply redundancy X O
IGX 8420: 1 AC input, with power supply redundancy X X O
IGX 8420: 2 AC inputs X O X O
IGX 8430: 1 AC input, no power supply redundancy X X O
IGX 8430: 1 AC input, with power supply redundancy XXXO
IGX 8430: 2 AC inputs XXOXXO