7750 SR-a4 and SR-a8 Installation Guide 171
Appendix C: Field-Replaceable Units
In This Chapter
This chapter describes how to remove and replace field-replaceable units (FRUs) in the
7750 SR-a4 and 7750 SR-a8 chassis. Topics in this chapter include:
• Removing and Replacing a PSU on page 172
• Removing and Replacing a Fan Tray on page 185
• Removing and Replacing an Air Filter on page 189
• Removing and Replacing a CPM-a on page 192
• Removing and Replacing an IOM-a on page 198
• Removing and Replacing an MDA-a or MDA-aXP Card on page 204
• Removing and Replacing an Impedance Panel on page 209
Note:
• Alcatel-Lucent recommends that you read the following sections in the Overview
chapter for detailed information and specific requirements that apply to the 7750 SR-a
component being replaced:
→
MDA-a Cards on page 36
→ PSUs on page 38
→ Fan Trays on page 40
→ Air Filters on page 42
→ Impedance Panels on page 43