Mean Time Between Failures

Table 1. 5420M family MTBF

Model	MTBF at 25°C
48W-4YE without PSU	547,531
48W-4YE with 1 CRPS 920W PSU	219,609
48W-4YE with 2 CRPS 920W PSUs	274,975
48W-4YE with 1 CRPS 2000W PSU	288,273
48W-4YE with 1 CRPS 920W and 1 CRPS 2000W PSU	304,604
48W-4YE with 2 CRPS 2000W PSUs	342,300
48T-4YE without PSU	818,774
48T-4YE with 1 CRPS 150W PSU	337,509
48T-4YE with 2 CRPS 150W PSUs	419,750
24W-4YE without PSU	652,991
24W-4YE with 1 CRPS 920W PSU	236,680
24W-4YE with 2 CRPS 920W PSUs	301,563
24T-4YE without PSU	842,727
24T-4YE with 1 CRPS 150W PSU	341,393
24T-4YE with 2 CRPS 150W PSUs	425,775
16MW-32P-4YE without PSU	576,512
16MW-32P-4YE with 1 CRPS 920W PSU	224,128
16MW-32P-4YE with 2 CRPS 920W PSUs	281,986
16MW-32P-4YE with 1 CRPS 2000W PSU	296,110
16MW-32P-4YE with 1 CRPS 920W and 1 CRPS 2000W PSU	313,368
16MW-32P-4YE with 2 CRPS 2000W PSUs	353,406

Table 2. 5420F family MTBF

Model	MTBF at 25°C
48P-4XE without PSU	406,882
48P-4XE with 1 OFPS 860W PSU	270,052
48P-4XE with 1 OFPS 860W and 1 CRPS 920W PSU	264,420
48P-4XL without PSU	414,751
48P-4XL with 1 OFPS 860W PSU	273,496
48P-4XL with 1 OFPS 860W and 1 CRPS 920W PSU	267,721
48T-4XE without PSU	623,178
48T-4XE with 1 OFPS 120W PSU	541,636
48T-4XE with 1 OFPS 120W and 1 CRPS 150W PSU	441,361
16MW-32P-4XE without PSU	377,035
16MW-32P-4XE with 1 OFPS 1200W PSU	219,064
16MW-32P-4XE with 1 OFPS 1200W and 1 CRPS 1200W PSU	263,301
16W-32P-4XE without PSU	383,424
16W-32P-4XE with 1 OFPS 1200W PSU	221,205
16W-32P-4XE with 2 CRPS 1200W PSUs	266,401
8W-16P-4XE without PSU	541,183
8W-16P-4XE with 1 OFPS 660W PSU	271,147
8W-16P-4XE with 1 OFPS 660W and 1 CRPS 600W PSU	326,619
24P-4XE without PSU	548,157
24P-4XE with 1 OFPS 660W PSU	272,887
24P-4XE with 1 OFPS 660W and 1 CRPS 600W PSU	329,146
24S-4XE without PSU	590,144
24S-4XE with 1 OFPS 150W PSU	291,032
24S-4XE with 1 OFPS 150W and 1 CRPS 150W PSU	350,197
24T-4XE without PSU	637,131
24T-4XE with 1 OFPS 120W PSU	552,146
24T-4XE with 1 OFPS 120W and 1 CRPS 150W PSU	448,314