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Power Supply LEDs
When you encounter a problem with the power supply, check for:
• Missing or damaged power cords
• Incorrect or ungrounded circuits
• Proper power is supplied to the Engine
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When the Engine is turned on, all LEDs are lit for a short period to ensure that they are working. This does not
indicate a fault unless the LEDs remain lit after a few seconds.
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If a power supply’s firmware is being programmed and the download fails, the power supply LEDs will flash.
See “Power Supplies” on page 18 for more information.
Replacing a Power Supply (2U and 4U)
The power supplies in the 2U and 4U chassis include cooling fans as well as supplying power to the system. The
power supplies are bi-directional; you can insert a power supply into either the left or right slot. When installed on
the left side of the Engine, the plug is below the ON/OFF switch. When installed on the right side, the plug is
above the ON/OFF switch.
To remove a power supply:
1. Open the strain relief and unplug the power cord.
2. Press the black release latch (see “Power Supplies” on page 18) towards the center of the module.
3. Open the silver latch, which disengages the power supply module from the Engine.
To insert a power supply:
1. Position the power supply so that the release latch and handle are closest to the Controller.
2. Slide the power supply into its slot and close the handle until the latch clicks in place.
3. Reconnect the power cord and secure the strain relief.
Replacing a Cooling Module (E5 only)
The Avid NEXIS | E5 is the only Avid NEXIS Engine with cooling modules that are not built in to the power
supply. The Avid NEXIS | E5 designed to continue working with at least two of the five cooling modules.
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Make sure you have a replacement before removing a failed component to maintain proper airflow. When the
Engine power is left on, insert the new cooling module within two minutes after removing the defective cooling
module.
To remove a cooling module:
1. Identify the cooling module to be removed. If the module has failed, the fan fault LED will be lit amber (see
“Avid NEXIS | E5 Rear View” on page 10).
2. Push down and hold the red release latch (callout 1 in the following figure) and pull the module out by its
handle (callout 2).
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