Specifications

DX-80 INSTALLATION AND MAINTENANCE MANUAL
P7290 IMM 1-20
MTBF (Mean-Time Between Failure) data:
Mean-Time Between Failure Analysis
System components
Cabinet Assembly 86.0
Power Supply Unit 170.0
CPM 2915.7
408M 11407.3
DPM8 3560.8
COM4 6146.5
APM4 6860.2
MDM 761.0
AAM 2337.3
Method:
1. Use the figures above for each unit installed (or to be
installed) and calculate the total for this system
configuration.
2. Use the total from step 1 in place of the variable “x” in the
formula at the right to calculate MTBF for this system
configuration.
(1 ÷
÷÷
÷ x)(10
9
) = MTBF hours