• Supported Platforms
• MX240 Routers

• Related Topics
• Preventing Electrostatic Discharge Damage to an MX240 Router
• Replacing Connections to MX240 Routing Engine Interface Ports
• Removing an MX240 Routing Engine
• MX240 Routing Engine Description

Installing an MX240 Routing Engine

To install a Routing Engine into an SCB (see Figure 1):

1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.For more information about ESD, see Preventing Electrostatic Discharge Damage to an MX240 Router.
2. Ensure that the ejector handles are not in the locked position. If necessary, flip the ejector handles outward.
3. Place one hand underneath the Routing Engine to support it.
4. Carefully align the sides of the Routing Engine with the guides inside the opening on the SCB.
5. Slide the Routing Engine into the SCB until you feel resistance, and then press the Routing Engine's faceplate until it engages the connectors.
6. Press both of the ejector handles inward to seat the Routing Engine.
7. Tighten the captive screws on the left and right of the Routing Engine.
8. Connect the management device cables to the Routing Engine.

The Routing Engine might require several minutes to boot.

After the Routing Engine boots, verify that it is installed correctly by checking the RE0 and RE1 LEDs on the craft interface. If the router is operational and the Routing Engine is functioning properly, the green ONLINE LED lights steadily. If the red FAIL LED lights steadily instead, remove and install the Routing Engine again. If the red FAIL LED still lights steadily, the Routing Engine is not functioning properly. Contact your customer support representative.

To check the status of the Routing Engine, use the CLI command:

Routing Engine status:      Slot 0:     Current state                 Master ...

For more information about using the CLI, see the Junos OS documentation.