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Notes: CPS/TCN/044
Names: »2121A «
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…02…URH/820511…02……02…#
RELIABILITY FIGURES FOR TRACOR MEDIUM
SPEED PRINTER MODEL 8000 CAMPS
1̲ ̲ ̲P̲U̲R̲P̲O̲S̲E̲
The purpose of this document is to present an overall
reliability figure for the TRACOR medium speed printer
(MSP) based on the manufacturer supplied Parts List
Data.
2̲ ̲ ̲I̲N̲T̲R̲O̲D̲U̲C̲T̲I̲O̲N̲
Based on the assembly level reliability figures contained
in the manufacturer's NATO Codification and Parts List
Data, dated 02-10-82, an overall reliability figure
has been calculated.
The principle used in the calculation is that the different
assemblies contained in the MSP form a simple series
reliability model.
3̲ ̲ ̲R̲E̲L̲I̲A̲B̲I̲L̲I̲T̲Y̲ ̲F̲I̲G̲U̲R̲E̲S̲
In table 3 - 1 is shown the assembly level reliability
figures given in: TRACOR MODEL 8000 NATO CODIFICATION
AND PARTS LIST, dated 02-10-82.
The figures are calculated in accordance with MIL HDBK
217C.
By simple reciprocal summation of the tabulated MTBF
figures the reciprocal of the printer MTBF is found.
Thus,
MTBF for TRACOR 8000 MSP = 4593 hours.
M̲S̲P̲
P̲a̲r̲t̲s̲ ̲L̲i̲s̲t̲
P/N Name Quant. MTBF
MS21318-21 SCR Drive RND 4-7x1/4 2 -
(23384-0203)
MS16562-199) Pin Spring 1 -
(24619-0199)
924 Tape Adh. Transfer 3 -
(26474-0003)
141556-0013 Prom Assy 1 739.927
141556-014 Prom Assy 1 739.927
141569-0001 CUT CD Assy, mtr.drvr. 1 102.246
141572.0001 CUT CD Assy, Ptr-Intrfc 1 78.051
141596-0001 MTG Kit 1 -
141609-0001 CKT CD Assy, Singal Int. 1 54.955
141625-0003 TCM ASY 1 24.357
141657.0001 CUT CD ASSY, CPU 1 14.796
141697-0002 RO Panel 1 -
141716-0001 CUT CD ASSY, PMDDRIR 1 146.308
142854-0001 Printer, 132COL 1 17.520
142888-0001 Cable ASSY Key-lock 1 601.814
142899-0001 Decal Switch Label 1 -
152177.0001 Name plate TCM 1 -
152178.0001 Name plate PTR 1 -
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142900-0001 MSP Receive only 1 4593
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