Replacing An M320 Routing Engine; Removing An M320 Routing Engine - Juniper M320 Hardware Manual

M320 Router Hardware Guide

Replacing an M320 Routing Engine

Removing an M320 Routing Engine

166
M320 Control Board (CB) Description on page 23
Removing an M320 Routing Engine on page 166
Installing an M320 Routing Engine on page 167
The router can have one or two Routing Engines. They are located in the upper rear of
the chassis in the slots marked
2.4 lb (1.1 kg).
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. See "Taking the M320 Host
Subsystem Offline" on page 160.
To remove a Routing Engine (see Figure 84 on page 167):
Take the host subsystem offline as described in "Taking the M320 Host Subsystem
1.
Offline" on page 160.
Place an electrostatic bag or antistatic mat on a flat, stable surface.
2.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
3.
the strap to one of the ESD points on the chassis.
If applicable, loosen the screws on the extractor handles at either end of the Routing
4.
Engine faceplate, using a Phillips screwdriver.
Press the red tabs on the ejector handles on both sides of the Routing Engine faceplate.
5.
Flip the ejector handles outward to unseat the Routing Engine.
6.
Grasp the Routing Engine by the ejector handles, and slide it about halfway out of the
7.
chassis.
Place one of your hands underneath the Routing Engine to support it, and slide it
8.
completely out of the chassis.
Place the Routing Engine on the antistatic mat.
9.
If you are not replacing the Routing Engine now, install a blank panel over the empty
10.
slot.
and . Each Routing Engine weighs approximately
RE0 RE1
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