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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 on EX Series Switches” on page 292.
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 56 on page 159):
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. Iftheslothasacoverpanelonit,usethePhillips(+)screwdriver,number2toremove
the two screws on each side of the cover panel. Save the cover panel for later use.
3. Takingcare 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 thatthe SF module is installed correctly and functioningnormallybychecking
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
“CalculatingPower Requirementsforan EX8208Switch” onpage114. If morepower
supplies are needed, install additional power supplies. See “Installing an AC Power
Supply in an EX8200 Switch” on page 150. If there areenough powersupplies in the
switch, remove and install the SF module again. See“Removing an SF Module from
an EX8208 Switch” on page 217.
If the ST LED or the SF LED is lit steady yellow, the SF module has failed. Remove
theSF moduleandinstall anewone. See“Removingan SFModulefroman EX8208
Switch” on page 217.
Copyright ©2010,Juniper Networks,Inc.158
CompleteHardwareGuide forEX8208 EthernetSwitches