Installing An M120 Cb; Figure 69: Removing An M120 Cb - Juniper Networks Hardware Manual

M120 Multiservice Edge Router Hardware Guide
144
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Figure 69: Removing an M120 CB

Installing an M120 CB

To install a CB (see Figure 70 on page 145):
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect
1.
the strap to an approved site ESD grounding point. See the instructions for your site.
Carefully align the sides of the CB with the guides inside the chassis.
2.
Slide the CB into the chassis, carefully ensuring that it is correctly aligned.
3.
Grasp both ejector handles and rotate them simultaneously clockwise until the CB is
4.
fully seated.
Tighten the captive screws on the ejector handles, using a Phillips (+) screwdriver,
5.
number 2.
To verify that the CB is functioning normally, check the LEDs on its faceplate. The
6.
green LED should light steadily a few minutes after the CB is installed. If the
OK
LED is lit steadily, remove and install the CB again. If the
the CB is not functioning properly. Contact your customer support representative.
To check the status of the CB, use the CLI command:
user@host> show chassis environment cb
LED still lights steadily,
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