Cisco C880 M4 Service Manual page 124

(3) Connect FBU cable and TFM module if flash backup unit is used.
See Appendix C.14.3, "FBU Cable Connection (APP0314030)".
(4) Connect POW Cable as shown in Figure C.15.1-3 ② and BP Board#0 and #1.
(5) Connect SAS Cable as shown in Figure C.15.1-3 ③.
Figure C.15.1-3
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