Juniper M120 - Replacing Power System Components; Replacing an M120 AC Power Supply

CHAPTER 27
Replacing Line Card Components
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Replacing an M120 FPC on page 213
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Replacing an M120 CFPC on page 219
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Replacing an M120 PIC on page 223
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Replacing an M120 PIC Cable on page 228
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Replacing an M120 XENPAK Module on page 231
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Replacing an SFP or XFP Transceiver on page 234
Replacing an M120 FPC
The FPCs are hot-insertable and hot-removable. When you remove an FPC, the router
continues to function, although the PIC interfaces installed on the FPC being removed
no longer function. To replace an FPC, perform the following procedures:
•
Removing an M120 FPC on page 213
•
Installing an M120 FPC on page 216
Removing an M120 FPC
The router holds up to four FPCs, which are installed vertically in the front of the router.
An empty FPC weighs 9.0 lb (4.0 kg). A fully configured FPC can weigh up to
12.3 lb (5.6 kg).
To remove an FPC (see Figure 84 on page 215):
1. Have ready a replacement FPC or FPC blank panel and an antistatic mat for the FPC.
Also have ready rubber safety caps for each PIC using an optical interface on the FPC
that you are removing.
2. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
ESD points on the chassis.
3. Label the cables connected to each PIC on the FPC so that you can later reconnect
the cables to the correct PICs.
4. Use one of the following methods to take the FPC offline:
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