Installing the M120 Craft Interface

To install the craft interface (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.
2. Align the guide pin on the back side of the craft interface with the receptacle inside the upper left corner of the chassis.
3. Press the craft interface into place.
4. Install a washer and retaining nut over each threaded stud on each craft interface flange.
5. Tighten both retaining nuts.
6. Reinstall the front upper fan tray, if it was removed.

   Note: When you install the craft interface in an operating router, allow several minutes for the LEDs on the craft interface to reflect the current state of the router.

Figure 1: Installing the M120 Craft Interface