PEM 0 Rev 10 740-029970 QCS1251U020 PS 1.4-2.52kW; 90-264V AC in
PEM 1 Rev 10 740-029970 QCS1251U028 PS 1.4-2.52kW; 90-264V AC in
Routing Engine 0 REV 02 740-049603 9009153805 RE-S-EX9200-1800X4
Routing Engine 1 REV 02 740-049603 9009153993 RE-S-EX9200-1800X4
CB 0 REV 08 750-048307 CABC6474 EX9200-SF2
CB 1 REV 10 750-048307 CABH8948 EX9200-SF2
...
Upgrading to an EX9200-SF3
IN THIS SECTION
Preparing the EX9200 Switch for an EX9200-SF3 Upgrade | 234
Powering O the Switch | 234
Removing a Roung Engine from an SF Module | 234
Replacing the EX9200-SF or EX9200-SF2 with the EX9200-SF3 | 234
Installing a Roung Engine into an EX9200-SF3 | 235
Powering On the Switch | 235
Compleng the EX9200-SF3 Upgrade | 235
If you are upgrading to the EX9200-SF3 from an older SF module, the Roung Engine must be upgraded
to the rst supported Junos release for the EX9200-SF3 (20.3.R1) before you install it in the EX9200-
SF3. Also, we recommend that you update the recovery snapshot with the 20.3R1 or later image before
you begin the upgrade. If the Roung Engine fails to boot from the primary image, it will aempt to boot
from the recovery image. Since the older recovery image does not support the EX9200-SF3, the Roung
Engine will crash if it aîš‚empts to boot from the old recovery image.
CAUTION: If you plug the Roung Engine into the EX9200-SF3 without rst upgrading
Junos to 20.3R1 or later, Junos might crash and go to a db prompt. Should this occur,
you’ll need to recover the router by copying the Junos soware image for the 20.3R1 or
later release and then boong from the USB drive to install 20.3R1 Junos on the
EX9200-SF3. The USB install will wipe out the router conguraon and all user les on
the Roung Engine.
233
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