Installing An Sre Module In An Ex8208 Switch - Juniper EX8208 Hardware Manual

Installing an SRE Module in an EX8208 Switch

You can install either one or two Switch Fabric and Routing Engine (SRE) modules in an EX8208 switch.
The SRE modules install horizontally in the front of the chassis in the slots labeled SRE0 and SRE1.
NOTE: We recommend that you install two SRE modules for redundancy. If you install only one
SRE module, we recommend that you install it in the slot SRE0.
CAUTION:
support the weight of the module. Lifting the modules by the levers might bend the
levers, and the bent levers will prevent the SRE module from being properly seated in
the chassis.
Before you begin installing an SRE module in an EX8208 switch:
Ensure you understand how to prevent ESD damage. See
on page 381.
Ensure that you have the following parts and tools available to install an SRE module:
Electrostatic discharge (ESD) grounding strap
Phillips (+) screwdriver, number 2
To install an SRE module in an EX8208 switch (see
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. Taking care not to touch the leads, pins, or solder connections, pull the SRE module out from the bag.
3. Pull both the ejector levers outward, away from the faceplate of the SRE module, until they go no
further.
4. If the slot has a cover panel on it, unscrew the two screws on either side of the cover panel
counterclockwise using the Phillips (+) screwdriver, number 2. Remove the cover panel. Save the cover
panel for later use.
5. Carefully align the sides of the SRE module with the guides inside the chassis.
Do not lift the SRE module by holding the ejector levers. The levers cannot
Figure 76 on page
"Prevention of Electrostatic Discharge Damage"
256):
255