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    AC Power Supply in the NSM4000 Appliance

    An NSM4000 appliance ships with a single AC power supply module, shown in Figure 1. An additional AC power supply module can be installed to provide redundancy.

    Note: While it is possible to provide redundancy in the NSM4000 appliance using a combination of AC and DC power supply modules, we recommend that you do not provide redundancy in this manner. Instead, use two AC power supply modules or two DC power supply modules if you want to provide redundancy.

    Figure 1: AC Power Supply Module

    AC Power Supply
Module

    Table 1 shows details of the AC power supply module for an NSM4000 appliance.

    Table 1: Details of an AC Power Supply Module

    Item

    Details

    Model number

    UNIV-250W-PS-AC

    Field replaceable unit type

    Cold-swappable, if the appliance has only one power supply module

    Hot-swappable, if the appliance has an additional redundant, functioning power supply module that is plugged into a separate power circuit

    Power supply module weight

    2.05 lb. (0.93 kg)

    Fans

    One internal fan per power supply module

    Airflow

    From the front of the chassis to the back

    Power Supply Module (Status) LED

    One Power Supply Module LED present on the power supply faceplate:

    • Green indicates that the power supply module is working properly; the module is powered on and is powering the appliance.
    • Amber indicates that the power supply module is in standby mode; the module is powered on but it is not powering the appliance.
    • Off indicates that the power supply module is not powered on or that the module is not working properly.

    AC Input Voltage

    100 to 240 VAC

    AC Input Line Frequency

    50 to 60 Hz

    Peak Inrush Current

    • 40 A maximum at 115 VAC and 77° F (25° C)
    • 80 A maximum at 240 VAC and 77° F (25° C)

    Maximum Output Power

    250 W

    Power Module Maximum Efficiency

    80Plus 250 W AC

    Published: 2014-10-30