> Adding Application and Line Cards
> to an Existing Installation
> This chapter provides instructions for installing additional application and line cards in an installed chassis that is processing calls.
> IMPORTANT: Note that all application and line cards are hot swappable. This means that you can install or remove cards from the chassis without powering the chassis down. However, it is strongly recommended that you add system components during a maintenance window.
> Chassis Slot Numbering and Assignments
> The following figure shows the front and rear chassis slots.
> Chassis Slot Numbering
> IMPORTANT: In ST16 systems, the Switch Processor Cards (SPCs) must be installed in slots 8 and 9. Their associated line cards are the Switch Processor Input Output card (SPIO) and the Redundant Crossbar Card (RCC). Assure that the SPIOs are installed in slots 24 and 25, and the RCCs are installed in slots 40 and 41 to prevent damage to the cards or the chassis midplane.
> Adding Application Cards
> The installation procedure is identical for all application cards. This section provides the instructions for adding application cards to the chassis.
> IMPORTANT: If you are adding PACs to a live system, it is recommended that you add them two at a time. This evenly distributes software tasks between the CPUs on the cards for optimal performance.
> You can add single PACs to a production system. However, you must reboot the system to ensure optimal operation and capacity. For this reason Starent Networks suggests that you perform the installation during a maintenance window when a reboot will have minimal impact.
> ESD During installation, maintenance, and/or removal, wear grounding wrist straps to avoid ESD damage to the components. Failure to do so could result in damage to electrical components and could potentially void your warranty.

> 1 | Determine the type of application card you are installing. Each application card is identified by the text near the bottom of its front panel.

> IMPORTANT: In ST16 systems, if you are installing PACs, note that there are two types: a 4GB PAC and an 8GB PAC. Only one type of PAC can be installed in a system. You can not mix 4GB and 8GB PACs in the system. If a system has mixed PACs, failover and migration of PACs fails.

> 2 | Determine which chassis slot to install the card in based on the information in the Chassis Slot Numbering and Assignments section in this guide.

> IMPORTANT: To achieve optimal airflow performance in minimal system deployments, populate PACs from the middle of the chassis outward, leaving an empty slot between them. For example, with four PACs, use slots 3, 5, 12, and 14. For two PACs, place them in slots 5 and 12.

> 3 | Remove the blanking panel, if one is installed, covering the slot.

> a | Use a #2 Phillips screwdriver to loosen the screw at the top of the blanking panel.

> b | Use a #2 Phillips screwdriver to loosen the screw at the bottom of the blanking panel.

> c | Holding the screws on the blanking panel, pull the blanking panel away from the chassis to expose the chassis slot.

> CAUTION: Do not leave chassis slots uncovered for extended periods of time. This reduces airflow through the chassis and could cause it to overheat. Make sure there is a card or blanking panel in every chassis slot at all times.

> 4 | Properly support the weight of the card and align it with the upper and lower card guides of the chassis slot. Gently slide the card into the slot until the levers touch the chassis frame.

> CAUTION: To avoid damaging the card’s interlock switch, ensure that it is completely down prior to proceeding. For additional information, refer to the Product Overview Guide.
> In addition, take extra care when you install PACs. These cards contain heat sinks that could become loose or damaged if they come into contact with another card while the PAC is being inserted in the chassis slot.

> 5 | Push the ejector levers inward firmly and straight until the card is seated in the chassis midplane and you cannot push the ejector levers in any further. Press firmly on the card’s faceplate to ensure that it is fully seated. The card’s front panel should be flush against the chassis’ upper and lower card mounts for the slot.

> 6 | Raise the interlock switch on the front panel of the application card to lock the ejector tab in place. The flange on the left-side of the interlock switch prevents movement of the ejector tab when raised completely.

> IMPORTANT: Make sure the interlock switch is fully raised in order to properly secure the application card’s top screw to the chassis.

> 7 | Use a #2 Phillips screwdriver to tighten the screws at the top and bottom of the application card’s front panel to secure the card to the chassis.

> 8 | Repeat step 1 through step 7 for every application card you are installing.

> 9 | Install blanking panels over any unused chassis slots.

> WARNING: To reduce the risk of electric shock and ensure proper ventilation, blanking panels must be used to cover any chassis slot not occupied by an application card.
> Leere Steckplaetze muessen mit der dafuer vorgesehenen Abdeckplatte geschlossen werden, um die Luftzirkulation innerhalb des Geraets zu gewaehrleisten und um einen elektrischen Schlag zu vermeiden.

> a | Use a #2 Phillips screwdriver to tighten the screw at the top of the blanking panel to secure the panel to the chassis.

> b | Use a #2 Phillips screwdriver to tighten the screw at the bottom of the blanking panel to secure the panel to the chassis.

> c | Repeat step a through step c for any additional unused chassis slots.

> 10 | Proceed to the next section of this chapter for instructions on adding the respective line card(s) for every application card just installed.

> Adding Half-Height Line Cards
> This section provides instructions for adding half-height line cards to the chassis.
> ESD During installation, maintenance, and/or removal, wear grounding wrist straps to avoid ESD damage to the components. Failure to do so could result in damage to electrical components and could potentially void your warranty.

> 1 | Determine the type of line card you are installing. Each line card is identified by the label near the bottom of its front panel.

> 2 | Determine which chassis slot to install the card in based on the information in the Chassis Slot Numbering and Assignments section of this guide.

> 3 | Remove the blanking panel covering the slot:

> a | Use a #2 Phillips screwdriver to loosen the screw at the top of the blanking panel.

> b | Use a #2 Phillips screwdriver to loosen the screw at the bottom of the blanking panel.

> c | Hold the screws on the blanking panel, and pull the blanking panel away from the chassis to expose the chassis slot.

> CAUTION: Do not leave chassis slots uncovered for extended periods of time. This reduces airflow through the chassis, which could cause it to overheat. Install a card or a blanking panels in every chassis slot.

> 4 | Hold the card by its ejector levers and align the card with the upper and lower card guides of the chassis slot. Gently slide it into the slot until the levers touch the chassis frame.

> CAUTION: To avoid damaging the card’s interlock switch, ensure that it is completely down prior to proceeding. For additional information, refer to the Product Overview Guide.

> 5 | Push the ejector levers inward firmly until the card is firmly seated in the chassis midplane and the ejector levers can be pushed in no further. Press firmly on the card’s faceplate to ensure that it is fully seated. The card’s from panel should be flush against the chassis’ upper and lower card mounts for the slot.

> 6 | Raise the interlock switch on the front panel of the line card to lock the ejector tab in place. The flange on the left-side of the interlock switch prevents movement of the ejector tab when raised completely.

> 7 | Use a #2 Phillips screwdriver to tighten the screws at the top and bottom of the line card’s front panel to secure the card to the chassis.

> 8 | Repeat step 1 through step 7 for every other line card that to be installed.

> 9 | Install blanking panels over any unused chassis slots.

> WARNING: To reduce the risk of electric shock and to ensure proper ventilation, blanking panels must be used to cover any chassis slot that is not occupied by an application card.
> Leere Steckplaetze muessen mit der dafuer vorgesehenen Abdeckplatte geschlossen werden, um die Luftzirkulation innerhalb des Geraets zu gewaehrleisten und um einen elektrischen Schlag zu vermeiden.

> a | Position the blanking panel over the unused chassis slot(s).

> b | Use a #2 Phillips screwdriver to tighten the screw at the top of the blanking panel to secure the panel to the chassis.

> c | Use a #2 Phillips screwdriver to tighten the screw at the bottom of the blanking panel to secure the panel to the chassis.

> 10 | Refer to one of the following chapters in this guide for information on cabling the line cards you just installed.

> Line Card | Chapter
> Switch Processor Input/Output | Cabling the Switch Processor Input/Output Line Card
> Ethernet 10/100 | Cabling the Ethernet 10/100 Line Card
> Ethernet 1000 | Cabling the Gigabit Ethernet Line Cards

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