Juniper EX9214 Hardware Manual page 239

The Routing Engine module (RE module) in an EX9200 switch is a hot-insertable and hot-removable
field-replaceable unit (FRU); you can remove and replace it while the switch is running without turning
off power to the switch or disrupting switching functions. Each RE module is installed horizontally in a
Switch Fabric module (SF module) installed in the switch.
NOTE: In an EX9214 switch, you must install an RE module only in the SF modules installed in
slots 7 and 8 labeled 0 and 1.
CAUTION: Do not lift the RE module by holding the ejector handles. The ejector
handles cannot support the weight of the module. Lifting the ejector handles by the
levers might bend the levers, and the bent ejector handles will prevent the RE module
from being properly seated in the chassis.
To install an RE module in an EX9200 switch:
1. Attach the 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 RE module out from the bag.
3. Ensure that the ejector handles are not in the locked position. If necessary, flip the ejector handles
outward.
4. Place one hand underneath the RE module to support it.
5. Carefully align the sides of the RE module with the guides inside the RE module slot on the SF.
6. Slide the RE module into the SF module until you feel resistance, and then press in the faceplate of
the RE module until it engages the connectors.
7. Press both of the ejector handles inward to seat the RE module.
8. Tighten the screws, one on each side of the RE module, using a screwdriver.
9. Connect the management device cables to the RE module.
The RE module might require several minutes to boot.
After the RE module boots, verify that it is installed correctly by checking the RE0 and RE1 LEDs on
the craft interface. If the switch is operational and the Routing Engine is functioning properly, the
ONLINE LED glows steady green. If the FAIL LED glows red steadily instead, remove and install the
RE module again. If the FAIL LED still glows red steadily, the RE module is not functioning properly.
Contact your customer support representative.
You can use the show chassis routing-engine command to check the status of Routing Engines.
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