Removing the M320 CBs
The router can have one or two CBs. They are located in the upper rear of the chassis in the slots marked CB0 and CB1. Each CB weighs approximately 3.4 lb (1.5 kg).
To remove the CBs (see Figure 1):
- Place an electrostatic bag or antistatic mat on a flat, stable surface.
- Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
- Loosen the captive screws on the ejector handles on both sides of the CB faceplate.
- Flip the ejector handles outward to unseat the CB.
- Grasp the ejector handles and slide the CB about halfway out of the chassis.
- Place one hand underneath the CB to
support it and slide it completely out of the chassis. Place it on
the antistatic mat.
Caution: Do not stack hardware components on one another after you remove them. Place each component on an antistatic mat resting on a stable, flat surface.
- Repeat the procedure for the second CB.
Figure 1: Removing a CB
