Installation guide

2-3
Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Chapter 2 Preparing to Install
Parts Checklist
Fill in the blank cells in Table 2-2 using the following rules:
Step 1 Determine which power supply option will be used with the system. The following options are available:
8410-AC, 8420/8430-AC, 8410-DC, and 8420/8430-DC.
Step 2 Enter the number of power supply units (PSUs) to be installed in the Quantity column for all AC Power
Supply and DC Power Supply rows (lines 22, 25, and 28). The allowable values are:
• 8410-AC—One or two power supply units (PSUs)
• 8430/30-AC—One, two, or three PSUs
• 8410-DC & 8420/30-DC—One or two PSUs
Step 3 Multiply the number in the Quantity column by the value in the Rating column, and enter the result in
the Total Power column (for lines 22, 25, or 28).
Step 4 Compare the total power number (lines 22, 25, or 28) to the shelf rating (lines 23, 26, or 29). The
available power is the lowest of these two numbers. For example, if the total power number is higher
than the shelf rating, the available power will equal the shelf rating.
Step 5 Enter the available power in the Available power row (lines 24, 27, or 30) and in the Total shelf power
row (line 31).
Step 6 Subtract the Total Power Demand (line 21) from the Total shelf power (line 31), and enter the result in
the Total shelf power - total power demand row (line 32).
Tip If the number in the Total shelf power - total power demand row (line 32) is negative, the system is short
of power. Either add more power by increasing the number of power supply units as applicable (if
possible) or decrease the power demand by removing cards from the chassis.
Parts Checklist
Before you install the system, verify that all the required parts are present and in good condition. If
anything is missing or damaged, contact your sales representative.
31 Total shelf power ____
32 Total shelf power - total power demand ____
Table 2-2 Cisco IGX 8400 Series Power Supply Worksheet (continued)
Line Power Supply Rating Quantity Total Power