Juniper MX480, Hardware Manual

Page: 243 / 420

2.5 V 2375 mV
3.3 V 3138 mV
5.0 V 4763 mV
1.2 V Rocket IO 1160 mV
1.5 V Rocket IO 1408 mV
1.8 V RLDRAM 1717 mV
I2C Slave Revision 15
For more information about using the CLI, see the Junos OS manuals.
See Also MX480 Craft Interface Description on page 37
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•
MX480 Routing Engine Description on page 60
Replacing an MX480 Routing Engine
1.
Removing an MX480 Routing Engine on page 243
2. Installing an MX480 Routing Engine on page 245
Removing an MX480 Routing Engine
Before you remove a Routing Engine, remove the cables that connect to it.
CAUTION: Before you replace a Routing Engine, you must take the host
subsystem offline. If there is only one host subsystem, taking the host
subsystem offline shuts down the router.
CAUTION: If the Routing Engine to be replaced is currently functioning as
the master Routing engine, switch it to be the backup before removing it.
To remove a Routing Engine from an SCB (see Figure 94 on page 244 ):
1.
Take the Routing Engine offline gracefully.
2.
Place an electrostatic bag or antistatic mat on a flat, stable surface.
3.
Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
ESD points on the chassis.
4.
Verify that the Routing Engine LEDs are off.
5.
Loosen the captive screws on the top and bottom of the Routing Engine.
6.
Flip the ejector handles outward to unseat the Routing Engine.
243 Copyright © 2019, Juniper Networks, Inc.
Chapter 4: Maintaining Components