Installing an SF Module in an EX8208 Switch

You can install either zero Switch Fabric (SF) modules or one SF module in an EX8208 switch depending on the switch configuration you want to have. One SF module is included in the base configuration. See EX8208 Switch Configurations.

The SF module can be installed only in the slot labeled SF. The SF module is keyed so that it does not fit in any other slot in the chassis.

Note: Do not lift the SF module by holding the ejector levers. The levers cannot support the weight of the module. Lifting the module by the levers might bend the levers. Bent levers prevent the SF module from being properly seated in the chassis.

Before you begin installing an SF module in an EX8208 switch:

• Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

Ensure that you have the following parts and tools available to install an SF module:

• Electrostatic discharge (ESD) grounding strap
• Phillips (+) screwdriver, number 2

To install an SF module (see Figure 1):

1. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
2. If the slot has a cover panel on it, use the Phillips (+) screwdriver, number 2 to remove the two screws on each side of the cover panel. Save the cover panel for later use.
3. Taking care not to touch the leads, pins, or solder connections, pull the SF module out from the bag.
4. Pull both the ejector levers outwards, away from the faceplate of the SF module, until they go no further.
5. Align the sides of the SF module with the guides inside the chassis.
6. Ensuring that the module remains correctly aligned, slide the SF module into the chassis until you feel resistance.
7. Push both the ejector levers towards the faceplate of the SF module until the levers are flush against the faceplate and are fully engaged.
8. Tighten the screws on each side of the SF module by turning them clockwise using the Phillips (+) screwdriver, number 2. Ensure that the SF module is fully seated in the chassis.
9. Verify that the SF module is installed correctly and functioning normally by checking the LEDs on the faceplate of the SF module. The ST LED and SF LED should be lit steady green a few minutes after the SF module is installed.

   If the ST LED is unlit, check whether there are enough power supplies installed. See Calculating Power Requirements for an EX8208 Switch. If more power supplies are needed, install additional power supplies. See Installing an AC Power Supply in an EX8200 Switch. If there are enough power supplies in the switch, remove and install the SF module again. See Removing an SF Module from an EX8208 Switch.

   If the ST LED or the SF LED is lit steady yellow, the SF module has failed. Remove the SF module and install a new one. See Removing an SF Module from an EX8208 Switch.

Figure 1: Installing an SF Module in an EX8208 Switch