MLS200

The appliances have a redundant Power Supply Unit (PSU). They support AC PSUs.

If necessary, you can replace a PSU. Note that all PSUs on an appliance must be of the same type (AC).

Warning:

  • To protect yourself and the appliance PSUs from electrostatic discharge, make sure that you are electromagnetically grounded before you install, uninstall, or replace a PSU.

  • We recommend that you use an ESD grounding wrist strap. Connect the grounding plug on the wrist strap to the chassis grounding point.

Legend

Item

Component

Description

1

Release lever

Used together with the extraction handle to remove the PSU

2

Extraction handle

Used together with the release lever to remove the PSU

3

LED indicator for each PSU

  • Off - PSU is not connected to an electric outlet

  • Amber - Power off

  • Green - Power on

  • Red - Failure

4

PSU socket

Connects to an electric outlet with a power supply cable.

Use the cable restraint clips to avoid accidental removal of the power supply cable.

5

Alarm Off button

If a power supply cable is not connected to the outlet, an alarm sounds continuously. Press this button to turn off the alarm for the PSU.

Removing a Power Supply Unit

Before you remove a Power Supply Unit, we recommend that you make sure that either:

  • Another PSU is installed and connected to a working power source

    Or

  • The appliance is shut down

To remove a Power Supply Unit:

  1. Remove the power supply cable from the PSU.

  2. If the alarm sounds, press the Alarm Off button to the right of the PSU.

  3. While holding the release lever, pull the extraction handle to remove the Power Supply Unit.

Note - Remove the power supply unit only with the extraction handle to prevent any possible damage.

Installing a Power Supply Unit

To install a replacement power supply unit:

  1. Insert the PSU into the power supply slot.

  2. Push in the power supply unit until the release lever clicks.

  3. Insert the power supply cable into the power supply socket.

  4. Make sure that the power LED is lit up.

Using the Power Supply Cable Restraint Clip

The appliance has power supply cable restraint clips attached to the Power Supply Units. Use the restraint clip to prevent accidental removal of the power supply cable.

To secure the restraint clip on the power supply cable:

  1. Make sure the restraint clip is in the open position (facing upward) and connect the power supply cable to the power supply socket on the PSU.

  2. Push down on the restraint clip to close it and secure the power supply cable.

Legend

Item

Description

1

Restraint clip in the open position (facing upward)

2

Restraint clip in the closed position

PSU Configuration and Monitoring

See the Getting Started Guide for PSU configuration and monitoring options:

Quantum LightSpeed Appliances Getting Started Guide