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Hardware Installation and Maintenance Guide

CloudEngine 8800, 7800, 6800, and 5800

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Installing Power Modules and Fan Modules

Installing Power Modules and Fan Modules

Context

NOTE:

If a switch is delivered with the power modules and fan modules installed in the chassis, you do not need to install the power modules and fan modules again.

The methods for installing a fan module and a power module are the same. Fan modules and power modules are both classified into two types: one type is secured by a captive screw and the other is secured by a lock. Power modules are used as an example here to describe the installation procedure.

The airflow direction of the power modules and fan modules required on the CE8800&7800&6800&5800 series switches depends on which direction the switches in the cabinets are facing. Typically, cabinets in a data center have cold air flowing in from the front and hot air exhausted from the back. If the CE8800&7800&6800&5800 series switches are installed with the power supply side facing the front, use fan modules and power modules with front-to-back airflow in the switches. See Figure 7-1.

Figure 7-1 Fan modules and power modules installation example
  • A switch must use the power modules it supports. Using unsupported power module may bring unknown risks to the switch.
  • FAN-060A fan modules can only be installed in the CE6850HI, CE6850U-HI, CE6855-48T6Q-HI, and CE6856-48T6Q-HI switches. Do not force them into other switch models as this may damage the fan modules or switches.
  • Power modules and fan modules must be installed in the specified slots. Power modules with different airflow directions or power values cannot be used on the same switch. For the fan modules and power modules applicable to the CloudEngine 8800, 7800, 6800, and 5800 series switches, see Switches Overview.
  • Fan modules of different types or with different airflow directions cannot be used on the same switch.
  • If only one power module is installed, install a power module filler panel in the empty power module slot. For a CE8800 switch, it is recommended to install the power module in PWR slot 2. A filler panel has been installed in PWR slot 1 before delivery.
  • Power modules (with fans) and fan modules on a switch must have the same airflow direction. For example, power modules with back-to-front airflow must be used with fan modules with back-to-front airflow. When a switch uses fanless 150 W AC power modules, it can use fan modules with either airflow. Determine the airflow of the fan modules based on the actual conditions.
  • The power modules and fan modules with front-to-back airflow have a or flag, and the power modules and fan modules with back-to-front airflow have a or flag.
  • A switch must have two fan modules running to ensure normal operation. If a fan module needs to be replaced, complete the replacement procedure within 3 minutes.
  • When installing a power module or fan module, slowly push it into the slot. If you feel resistance or find the module inclined, pull the module out and push it into the slot again. Do not push the module with force; otherwise, the connectors on the module and the switch may be damaged.
  • Power modules and fan modules are hot swappable. Do not put your fingers into the corresponding slot when installing or removing a module.

Tools and Accessories

  • ESD wrist strap or ESD gloves
  • Phillips screwdriver

Procedure

  1. Wear an ESD wrist strap or ESD gloves. Ensure that the ESD wrist strap is grounded and in close contact with your wrist.
  2. Remove the filler panel from the slot where the power module needs to be installed. Keep the filler panel for future use.
    • To remove a filler panel secured by a captive screw, perform the following steps:
      1. Use a Phillips screwdriver to loosen the captive screw on the filler panel counterclockwise.
      2. Pull the filler panel out by the captive screw.



    • To remove a filler panel secured by a lock, perform the following steps:
      1. Press and hold the lock on the filler panel rightward with your thumb.
      2. Pull the filler panel out by the handle.



  3. Install a power module.
    • To install a power module secured by a captive screw, perform the following steps:
      1. Hold the handle on the power module with one hand and support the bottom with the other hand. Horizontally push the power module into the slot until it is completely in the slot.
      2. Use the Phillips screwdriver to fasten the captive screw on the power module clockwise.



    • To install a power module secured by a lock, hold the handle of the power module with one hand and support the bottom with the other hand, and horizontally push the power module into the slot. When the power module is completely seated in the slot, the lock is locked automatically. (Make the side marked TOP face up when installing the power module.)



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Updated: 2019-10-14

Document ID: EDOC1000036822

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