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Sun Rack II

User’s Guide

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Document Information

Using this Documentation

1.  Preparing to Install the Rack

Installing the Rack Task Overview

Observing Safety Guidelines and Warnings

Verifying Requirements

Size and Space Requirements

Access Route Guidelines

Power Requirements

Grounding Requirements

Airflow Requirements

Electrostatic Discharge Prevention

Preparing the Installation Site

Mounting Holes and Cable Routing Floor Cutout

Leveling Feet and Castor Dimensions

Cable Routing Space Dimensions

Sun Rack II 1042 Rear Cabling Space

Sun Rack II 1242 Rear Cabling Space

Top Cable Window Dimensions

2.  Installing the Rack

Unpacking the Rack

Differences Between Standard and Enterprise Packaging

Tools Required

Moving the Rack to the Installation Site

Move the Rack to the Installation Site

Stabilizing the Rack

Stabilize the Rack With the Mounting Brackets

Stabilize the Rack With the Leveling Feet

Attaching an Optional Ground Cable

Attach a Ground Cable

3.  Installing Equipment Into the Rack

Installing Equipment Task Overview

Observing Equipment Installation Guidelines

Preparing to Install Equipment Into the Rack

Using the Anti-Tilt Legs

Extend the Anti-Tilt Legs

Retract the Anti-Tilt Legs

Taking Antistatic Precautions

Attach an Antistatic Wrist Strap

Adjusting the RETMA Rails

Adjust the Front RETMA Rails

Adjust the Rear RETMA Rails

Preparing Factory-Installed Power Distribution Units

Prepare Factory-Installed PDUs

Installing Power Distribution Units

Insert Cage Nuts Into Rail Holes

Using the Cable Management Hooks

Install a Cable Management Hook

Installing Equipment Into the Rack

Installing Optional Components

Install Filler Panels

Install Third-Party Cable Trays

4.  Servicing the Rack

Servicing Equipment in the Rack

Observing Equipment Service Guidelines

Servicing Power Distribution Units

Powering the Rack Off and On

Power the Rack Off

Power the Rack On

Locating and Disconnecting Panel Grounding Straps

Disconnect a Grounding Strap

Removing and Replacing the Doors

Remove the Doors

Replace the Doors

Removing and Replacing the Side Panels

Remove the Side Panels

Replace the Side Panels

Removing and Replacing Filler Panels

Remove Filler Panels

Replace Filler Panels

Removing and Replacing the Top Panel

Remove the Top Panel

Replace the Top Panel

5.  Repacking a Rack for Shipment

Securing the PDUs in the Rack

Secure the PDUs in the Rack

Repacking the Rack in the Enterprise Packaging

Repack the Rack in the Enterprise Packaging

Index

Preparing to Install Equipment Into the Rack

Prior to installing equipment in the rack, extend the anti-tilt legs, take antistatic precautions, and adjust the RETMA rails if your equipment requires it. If your rack shipped with factory-installed power distribution units, prepare and connect them to your site’s AC power source.

Using the Anti-Tilt Legs


Caution

Caution - To reduce the risk of personal injury or equipment damage, always extend the anti-tilt legs whenever you install or extend any equipment in the rack. The rack might become unstable and can possibly tip over if these anti-tilt legs are not extended.


The rack has two anti-tilt legs that must be extended each time you install or service equipment in the rack.

Extend the Anti-Tilt Legs

  1. Open the front door.
  2. Pull the top release pin to unlock the anti-tilt leg from the rack frame, and then pull the bottom foot of the anti-tilt leg away from the rack until it extends completely (see Extending the Anti-Tilt Legs).

    The leg support will make a clicking sound when it fully extends and locks in place.


    Figure 3-1 Extending the Anti-Tilt Legs

    image:Figure showing how to extend the rack’s anti-tilt legs.
  3. Rotate the leg’s leveling foot clockwise until it touches the floor (see Extending the Anti-Tilt Legs).

    The foot must touch the floor to stabilize the rack securely.

  4. Repeat Step 2 and Step 3 to extend the other anti-tilt leg.

Retract the Anti-Tilt Legs

  1. Pull on the anti-tilt leg release pin to unlock the leg and lift it off of the floor.

    If necessary, retract the leg’s leveling foot by turning it counterclockwise.


    Figure 3-2 Retracting the Anti-Tilt Legs

    image:Figure showing how to retract the anti-tilt legs.
  2. Push the leg securely into the rack.

    The leg should snap into place.

  3. Repeat Step 1 and Step 2 to retract the other anti-tilt leg.

Taking Antistatic Precautions


Electrical

Caution - To protect rack equipment from damaging static shock, always wear an antistatic wrist strap connected to an electrostatic discharge (ESD) ground jack whenever installing or servicing equipment. The ESD ground jacks will provide adequate static protection only if the rack is grounded to a building ground.


Attach an Antistatic Wrist Strap

Adjusting the RETMA Rails

The default depth of the RETMA rails should provide adequate space to install the majority of equipment. However, you can adjust the front and rear rails to accommodate equipment of different sizes and to provide additional room for cabling and large bezels.


Note - Moving the rear rails back might decrease the number of power distribution units you can install in your rack. Refer to the Sun Rack II Power Distribution Units User’s Guide for the dimensions of the power distribution units.



Caution

Caution - Adjusting the rear RETMA rails can make the rack less stable. If you adjust the rear RETMA rails, you must install the equipment only after you have stabilized the rack at the installation site (see Stabilizing the Rack). Do not move the rack after installing the equipment.


Adjust the Front RETMA Rails


Note - You can move the front rails back 35 mm (1.4 in.) into the rack from the default position.


  1. Open both rack doors.

    You might prefer to remove the doors from the rack before adjusting the RETMA rails. For instructions, see Removing and Replacing the Doors.

  2. Using a No. 2 Phillips screwdriver, remove the five No. 2 Phillips screws securing the right, front RETMA rail to the front rack frame (see Removing the Front RETMA Rail Screws).
  3. Using a T-30 Torx wrench key, remove and save the 15 self-tapping M6 screws securing the right rail to the rack frame.

    Note - Do not discard these self-tapping screws.



    Figure 3-4 Removing the Front RETMA Rail Screws

    image:Figure showing how to remove the screws securing the front RETMA rails.

    There are four sets of screws securing the rail to the frame and the support braces (see Removing the Front RETMA Rail Screws):

    • 4 screws at the top the rail

    • 3 screws securing the rail to the horizontal brace

    • 4 screws securing the rail to the triangular brace

    • 4 screws at the bottom of the rail


      Note - To prevent stripping the screw threads, carefully remove these screws from the rack.


  4. Move the rail back 35 mm (1.4 in.) into the rack.

    You will find an indentation and screw holes on the rack frame 35 mm in the rack.

  5. Using a T-30 Torx wrench key, secure the rail to the rack frame and braces using the 15 M6 self-tapping screws you removed in Step 3 (see Repositioning and Securing the Front RETMA Rails).

    You will not need to re-use the No. 2 Phillips screws you removed in Step 2, so save these screws for future use.


    Figure 3-5 Repositioning and Securing the Front RETMA Rails

    image:Figure showing how to secure a repositioned front RETMA rail.
  6. Repeat Step 2 to Step 5 for the left rail.

Adjust the Rear RETMA Rails


Note - You can move the rear rails in 25 mm (approx. 1 in.) intervals all the way to the rear of the rack.


  1. Open both rack doors.

    You might prefer to remove the doors from the rack before adjusting the RETMA rails. For instructions, see Removing and Replacing the Doors.

  2. Using a T-30 Torx wrench key, remove and save the 14 self-tapping M6 screws securing the right rail to the rack frame.

    Note - Do not discard these M6 self-tapping screws.


    There are four sets of screws securing the rail to the frame and the support braces (see Removing the Rear RETMA Rail Screws):

    • 4 screws at the top the rail

    • 3 screws securing the rail to the horizontal brace

    • 3 screws securing the rail to the triangular brace

    • 4 screws at the bottom of the rail


    Note - To prevent stripping the screw threads, carefully remove these screws from the rack.



    Figure 3-6 Removing the Rear RETMA Rail Screws

    image:Figure showing how to remove the screws securing the rear RETMA rails.

    Caution

    Caution - By separating the rails from the support braces, you will decrease the overall stability and strength of the rack. You can still use the horizontal brace if you move the front rails the same distance into the rack as you moved the rear rails (35 mm).


  3. Move the rail to the desired location and use a T-30 Torx wrench key to secure the rail to the rack frame and braces using eight M6 self-tapping screws.

    Secure the top of the rail using 4 screws and bottom of the rail using 4 screws (see Repositioning and Securing the Rear RETMA Rails). Save the remaining 6 M6 self-tapping screws for future use.


    Figure 3-7 Repositioning and Securing the Rear RETMA Rails

    image:Figure showing how to secure a repositioned rear RETMA rail.
  4. Repeat Step 2 and Step 3 for the left rail.

Preparing Factory-Installed Power Distribution Units

If you ordered a Sun Rack II cabinet with factory-installed power distribution units (PDUs), you must prepare these PDUs for use.


Note - Refer to the Sun Rack II Power Distribution Units User’s Guide for instructions on how to install, service, and use these PDUs.


Prepare Factory-Installed PDUs

  1. Open the rear door and attach an antistatic wrist strap.

    See Attach an Antistatic Wrist Strap for instructions.

  2. Use a box cutter to cut the tie-wraps securing the PDU power lead cords to the shipping brackets.

    The standard and compact PDUs are secured to the rack using the same type of shipping brackets.


    Figure 3-8 Removing the Standard PDU Shipping Brackets

    image:Figure showing how to free the PDU lead cords and remove the shipping brackets.

    Figure 3-9 Removing the Compact PDU Shipping Brackets

    image:Figure showing how to remove the compact PDU shipping brackets.
  3. If your rack contains standard PDUs, use a T-25 Torx wrench key to remove the screws securing the two shipping brackets to the rack.
  4. (Optional) If your rack contains standard PDUs, use a T-25 Torx wrench key to remove the four screws and washers securing the standard PDU to the mounting brackets (two screws per mounting bracket, see Removing the Shipping Screws From a PDU).

    Leaving these screws and washers in place will secure the standard PDU firmly to the rack. However, you must remove these screws and washers if you move or service the PDU in the future.


    Figure 3-10 Removing the Shipping Screws From a PDU

    image:Figure showing how to remove the four shipping screws from a PDU.
  5. If you have a standard PDU, connect the grounding strap from the rack frame to the standard PDU (see Connecting the PDU Grounding Straps).

    Note - If your rack contains compact PDUs, the grounding straps will already be attached to the rack.



    Figure 3-11 Connecting the PDU Grounding Straps

    image:Figure showing how to connect the grounding strap to a PDU.
  6. Route the power input lead cords between the rear RETMA rail and side panel.

    A PDU will have one to three power input lead cords, which you must route between the side panel and the rear RETMA rail.

    Route the power input lead cords either down through the bottom of the rack (see Routing Standard PDU Power Input Lead Cords Down Through the Bottom of the Rack for standard PDUs and Routing Compact PDU Power Input Lead Cords Down Through the Bottom of the Rack for compact PDUs), or up through the top of the rack (see Routing the Standard PDU Power Input Lead Cords Through the Top Cable Window for standard PDUs and Routing the Compact PDU Power Input Lead Cords Through the Top Cable Window for compact PDUs), depending on where you plan to connect them to the main power source.


    Electrical

    Caution - Never twist, kink, or tightly bend a power input lead.



    Figure 3-12 Routing Standard PDU Power Input Lead Cords Down Through the Bottom of the Rack

    image:Figure showing how to route and secure the standard PDU power lead cords down through the bottom of the rack.

    Figure 3-13 Routing Compact PDU Power Input Lead Cords Down Through the Bottom of the Rack

    image:Figure showing how to route and secure the Compact PDU power lead cords down through the bottom of the rack.


    Figure 3-14 Routing the Standard PDU Power Input Lead Cords Through the Top Cable Window

    image:Figure showing how to route and secure the standard PDU power lead cords down through the top of the rack.

    Figure 3-15 Routing the Compact PDU Power Input Lead Cords Through the Top Cable Window

    image:Figure showing how to route the compact PDU power lead cords up through the top cable window.

    Hot

    Caution - If you route power input lead cords through the top cable window, do not rest the cables on the plastic sliding doors.


  7. If your rack contains standard PDUs, use a T-30 Torx wrench key to secure cable routing brackets to the rack frame using two M6 screws per bracket.

    Install these brackets near where the power input lead cords exit the rack (see Routing Standard PDU Power Input Lead Cords Down Through the Bottom of the Rack and Routing the Standard PDU Power Input Lead Cords Through the Top Cable Window).


    Note - The compact PDUs do not ship with cable routing brackets. Route and secure the power input leads using a method that works best for your environment.


  8. If your rack contains standard PDUs, use tie-wraps to secure the standard PDU input lead cords to the tie-down brackets.

Installing Power Distribution Units

For detailed instructions on installing and cabling power distribution units in the rack, refer to Sun Rack II Power Distribution Units User’s Guide. Besides installation instructions, this user’s guide provides service procedures and specifications for the power distribution units designed for Sun Rack II cabinets.

If you plan to install power distribution units or power strips not designed specifically for the Sun Rack II cabinet, refer to the documentation that came with that power equipment.

Insert Cage Nuts Into Rail Holes

Because the RETMA rails have square holes, you might need to use cage nuts to secure the equipment into the rack. The rack shipping kit contains M6 cage nuts and M6 screws. If possible, use the cage nuts that shipped with the equipment’s rackmounting hardware.

image:Figure showing how to use cage nuts to secure equipment in the rack.

Note - Use the cage nut insertion tool in the shipping kit to install the cage nuts in the rails.


  1. Using your equipment’s rack alignment template, or other equipment documentation, locate the rail holes you will use to install the equipment.
  2. Retrieve a cage nut and hook the bottom lip of the nut in the square rail hole.
  3. Insert the tip of the cage nut insertion tool through the rail hole and hook the top lip of the cage nut (see Using the Cage Nut Insertion Tool to Insert a Cage Nut).

    Figure 3-16 Using the Cage Nut Insertion Tool to Insert a Cage Nut

    image:Figure showing how to use the cage nut installation tool.
  4. Using the insertion tool, pull the cage nut through the hole until the top lip snaps into place.

Using the Cable Management Hooks

You can route your equipment’s data cables using the cable management hooks and spring nuts found in the shipping kit.

Install a Cable Management Hook

  1. Retrieve a cable management hook, M5 screws, and a spring nut from the shipping kit.
  2. Insert a spring nut at a 45-degree angle into the desired rack frame groove.

    Once in the groove, position the spring nut so that the threaded nut is showing through the rack frame (see Inserting and Positioning Spring Nuts).


    Figure 3-17 Inserting and Positioning Spring Nuts

    image:Figure showing how to install a spring nut into the rack frame.
  3. Move the spring nut up or down the rack frame groove to where you will install the cable management hook (see Inserting and Positioning Spring Nuts).
  4. Place the cable management hook over the spring nut, and using a No. 2 screwdriver, tighten an M5 screw to secure the hook into the spring nut.

    Figure 3-18 Installing a Cable Management Hook

    image:Figure showing how to install a cable management hook.
  5. Route data cables from the installed equipment through the installed cable management hooks out of the rack.

    See Installing a Cable Management Hook for a cable routing example using these hooks.


    Note - Refer to the server or equipment documentation for additional cable routing instructions or guidelines.