AC Power Supply Units (PSUs)

5 Field replaceable and hot swappable 100 VAC to 240 VAC Power Supply Units (PSUs) supply:

• Power to the Chassis
• Power filtering and over-current protection.

Each PSU is located on a tray that slides directly into the backplane.

The AC Power inlets are located in the rear of the Chassis. Each power supply has one power inlet.

Item	Description (AC Power Unit)
1	Air filter. Prevents dust entering the PSU.
2	Latch for extracting and inserting the PSU.
3	AC Power Supply LED Green: AC Power is OK. OFF: AC power is OFF
4	DC Power Supply LED Green: DC Power is OK. Red: DC power failure or Hot swap ready
5	Extraction handle for holding the PSU during extraction and insertion

Power Requirements:

Each PSU supplies power at these values:

1500W at 220VAC
1200W at 110VAC

Power Consumption Data:

• Chassis (constant) - 100W
• Fan - 240W maximum
• CMM - 10W maximum
• SGM - 300W maximum
• SSM- 300W maximum

Recommended quantity of PSUs

Important - One power supply cannot supply a fully loaded Chassis. This table shows how to calculate the recommended number of power supplies.

	For a PSU that supplies 1500W
Number of SGMs	Minimum (N)	Recommended (N+1)
2	2	3
4	2	3
6	3	4
8	3	4
10	4	5
12	4	5