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S9300, S9300E, and S9300X Series Switches Hardware Installation and Component Replacement

This document describes hardware installation procedures of the S9300, S9300E, and S9300X series switches, troubleshooting methods for common hardware faults, and switch maintenance instructions.

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Installing S9312 and S9312E Chassis

Installing S9312 and S9312E Chassis


  • Do not block the air intake vent (on the left side) and air exhaust vent (at the rear) on the chassis. Leave 70 mm to 90 mm clearance to ensure effective heat dissipation.
  • Do not move or lift a switch by the top edges of the chassis as this may distort the chassis.
  • When installing a switch, ensure that the chassis bottom is completely attached to the guide rails or tray in the cabinet or rack.
  • Keep the tweezers delivered with the switch for future use.
  • The methods for installing the S9312 and S9312E chassis are the same. This section uses S9312E as an example to describe the installation procedure.

Tools and Accessories

  • Scissors
  • Flat-head screwdriver
  • Phillips screwdriver
  • Marker
  • Installation template
  • Floating nuts and matching screws
  • Guide rails and matching screws (separately purchased)
  • Removable handles


  1. Install mounting brackets. Measure the distance a from the front mounting rails to the interior side of the front door (see Checking the Cabinet or Rack), and then install mounting brackets to the switch based on the mapping between distance a and mounting bracket installation positions.

    Table 7-3 Mapping between distance a and mounting bracket installation positions

    Distance a

    Mounting Bracket Installation Position

    68 mm

    See Figure 7-17.

    • 95 mm

    • 100 mm

    See Figure 7-18.

    193 mm

    See Figure 7-19.

    Figure 7-17 Mounting bracket installation position (a = 68 mm)
    Figure 7-18 Mounting bracket installation position (a = 95 mm or a = 100 mm)
    Figure 7-19 Mounting bracket installation position (a = 193 mm)

  2. Mark mounting holes on the mounting rails.
    1. Cut off the installation template. Use a pair of scissors to cut off the installation template along the cutting line marked "12 (Huawei guide rails not used)". See Figure 7-20.

      Figure 7-20 Cutting off the installation template

    2. Determine the chassis installation position in the cabinet, use the installation template to locate 12 mounting holes, and use a marker to mark these mounting holes. See Figure 7-21.

      • The installation height of a chassis must be a multiple of 1 U (including 1 U).

      • 1 U equals 1.75 inch (44.45 mm). U is a unit of height defined in International Electrotechnical Commission (IEC) 60297.

      Figure 7-21 Locating mounting holes

    3. Remove the installation template.
  3. Install the floating nuts and guide rails.
    1. Use a flat-head screwdriver to install 12 floating nuts in the marked mounting holes. See callout 1 in Figure 7-22.
    2. Secure the guide rails in the marked position with screws. See callout 2 in Figure 7-22.

      If no guide rails are available, use a tray instead.

      Figure 7-22 Securing the guide rails

  4. Install the chassis in the cabinet.
    1. Install the removable handles on two sides of the chassis. Two persons lift the chassis using the handles several times to verify that the handles are installed correctly. See callout 1 in Figure 7-23.
    2. Three persons lift the chassis onto the guide rails from the front door and slowly push the chassis into one third of the cabinet depth. Hold the chassis while removing the removable handles. Then push the chassis completely in the cabinet. See callout 2 in Figure 7-23.
    3. Use screws to secure the chassis to the cabinet. See callout 3 in Figure 7-23.
    4. Hang the handles on the handle slots at rear of the chassis. See callout 4 in Figure 7-23.

    Figure 7-23 Installing the chassis in the cabinet

  5. Connect the ground cable.
Updated: 2019-11-30

Document ID: EDOC1000069582

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