Sun Microsystems 820-4733-10 service manual Removing Cables From the Sun Datacenter Switch

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Caution – Do not allow any IB cable to experience extreme tension. Do not pull on an IB cable or allow it to drag. Unroll an IB cable for its length. Pulling on an IB cable can break the cables internally.

Caution – Do not twist an IB cable more than 1 revolution for its entire length. Twisting an IB cable can break the cable internally.

Caution – Do not route IB cables where they might be stepped upon or experience rolling loads. Such a crushing effect can break the cable internally.

Removing Cables From the Sun Datacenter Switch 3456

This procedure describes how to remove the cables from one line card, so that line card can be replaced. If you are removing cables for several line cards or all line cards, work from the upper line card down. This way, you have more working space as your task progresses.

If you are removing a cable from the switch to replace that cable, consider the following:

If you are removing a cable from connectors 0A through 11B, start the procedure at Step 8.

If you are removing a cable from connectors 12A through 23B, start the procedure at Step 1.

1.Locate the connector at 12B. This is the upper cable.

2.Grasp the cable connector to support its weight and apply the removal force.

3.Pull on the loop of the retractor strap while simultaneously pulling on the cable connector.

The cable connector comes free.

4.Carefully move the cable out of the front branch of the cable tree.

5.Consider your next step:

If you are disconnecting cables for a cable replacement:

Chapter 2 Chassis Service Procedures 2-21

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Contents Sun Datacenter Switch Please Recycle Contents Fan Service Procedures Fabric Card Service Procedures Index Index-1 Preface Using Unix CommandsShell Prompts Typographic ConventionsRelated Documentation Sun Welcomes Your Comments Documentation, Support, and TrainingPage Switch Chassis Sun Datacenter Switch Overview1Parts of the Switch Chassis Power SuppliesFan Units 2Parts of the Power Supplies3Parts of the Fan Units Chassis Management Controllers4Parts of the CMCs Fabric Cards2lists the Ipmb addresses for the fabric cards Line Cards3lists the Ipmb addresses for the line cards Page Removing the Filler Panel Filler PanelsTurn the levers counter-clockwise to the unlock position 2Removing the Filler Panel Installing the Filler PanelSlide the filler panel into the chassis until it stops Tools Midplane Connector PinsInspecting the Pins on the Rear Side of the Midplane Connector identified is FC-R13-F15 Look for any light reflection inconsistencies Inspecting the Pins on the Front Side of the Midplane Connector identified is LC-C14-L10 Look at the pins as straight on. See Figure 10Locating the Bent Pin and Surrounding Pins Removing PinsRemoving a Pin With Needle-Nose Pliers 11Using Pliers to Pull a Pin Inserting PinsInstalling Cable Plates Cable Management HardwareRemoving Cable Plates 12Cable Plate Locations Removing Cable TreesIdentify the cable trees Installing Cable TreesFinger tighten the screw only Removing Cable Trays Installing Cable TraysCable Cautions InfiniBand CablesRemoving Cables From the Sun Datacenter Switch Attaching Cables to the Sun Datacenter Switch Plug the first cable into the connector at 23A Slowly move the connector Chassis Service Procedures Page Power Supply Service Procedures Powering Off Power Supplies Troubleshooting Power SuppliesRemoving a Power Supply Removing Power SuppliesSet the power supply aside Installing a Power Supply Installing Power SuppliesReconnect the power cord 6Attaching the Power Cord Powering On Power Supplies# enablepsu Troubleshooting Fans Removing FansRemoving a Fan 1Removing the Fan Installing Fans2Installing the Fan Installing a FanPage Chassis Management Controller Service Procedures Powering Off CMCs Troubleshooting CMCsRemoving a CMC Removing CMCsInstalling a CMC Installing CMCs2Installing and Securing the CMC Powering On CMCs Fabric Card Considerations Fabric Card Service Procedures1Fabric Card Status LEDs Troubleshooting Fabric CardsInspecting Fabric Cards Inspecting the Fabric Card iTRAC ConnectorsLook for any closed over or contaminated holes Inspecting the Retainers Inspecting the Fans# deactivate fc 14 Deactivating FC Powering Off Fabric CardsRemoving a Fabric Card Removing Fabric CardsInstalling a Fabric Card Installing Fabric CardsFabric Card Service Procedures # activate fc 14 Activating FC Powering On Fabric CardsCheckvoltages Checkswitches Showtemps Page Line Card Considerations Line Card Service Procedures1Line Card Status LEDs Troubleshooting Line CardsInspecting Line Cards Inspecting the Line Card iTRAC Connectors1Inspecting Line Card Connectors Inspecting the Line Card iPASS Connectors # deactivate lc 20 Deactivating LC Powering Off Line CardsRemoving a Line Card Removing Line CardsStop when the line card is halfway out. See Figure 5Turning Filler Panel Lock Levers Counter-Clockwise 6Installing the Filler Panel Installing a Line Card Installing Line Cards8Turning Filler Panel Lock Levers 9Removing the Filler Panel # activate lc 20 Activating LC Powering On Line CardsCheckvoltages Checkswitches Showtemps Page Index Page Switchover Clia command, 5-3,5-6