Installing The M120 Craft Interface; Figure 57: Installing The M120 Craft Interface - Juniper Networks Hardware Manual

Installing the M120 Craft Interface

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To install the craft interface (see Figure 57 on page 131):
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to one of the ESD points on the chassis.
Align the guide pin on the back side of the craft interface with the receptacle inside
2.
the upper left corner of the chassis.
Press the craft interface into place.
3.
Install a washer and retaining nut over each threaded stud on each craft interface
4.
flange.
Tighten both retaining nuts.
5.
Reinstall the front upper fan tray, if it was removed.
6.
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 57: Installing the M120 Craft Interface

Preventing Electrostatic Discharge Damage to an M120 Router on page 192
M120 Craft Interface Description on page 23
Alarm Relay Contacts on the M120 Craft Interface on page 28
Chapter 14: Replacing M120 Hardware Components
131