Replacing The M120 Craft Interface - Juniper Networks Hardware Manual

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Replacing the M120 Craft Interface

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Table 22: Tools and Parts Required (continued)
Tool or part
Electrostatic bag or antistatic mat
Electrostatic discharge (ESD)
grounding wrist strap
Flat-blade (–) screwdriver
Phillips (+) screwdrivers, numbers 1
and 2
Rubber safety cap
Wire cutters
M120 Field-Replaceable Units (FRUs) on page 127
M120 Router Chassis Description on page 6
Overview of Troubleshooting Resources for the M120 Router on page 117
The craft interface is located above the FPC card cage, as shown in Figure 1 on page 7.
It houses the Routing Engine interface ports, which accept connections to external
management and alarm-reporting devices.
Chapter 14: Replacing M120 Hardware Components
Components
Craft Interface
CB
FEB
FPC
PIC
Routing Engine
All
Cables and connectors
PIC (in an FPC1)
Routing Engine
Air filter
Cables and connectors
FEB
Fan tray (front or rear)
PIC
Power supply (AC or DC)
Fiber-optic PIC or PIC cable
Cables and connectors
DC power supply
129