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TABLE 2-1 (CONTINUED)
ELECTRICAL AND OPERATIONAL SPECH'ICATIONS
Flux Reversals Per Inch (FRPI),
inside track
Both models, Side 0
TM50-2, Side 1
Unformatted Recording Capacity
TM50-1
TM50-2
D. C. Voltage and
Current Requirements
+5 volts D. C. Power
+12 volts D. C. Power
Shipment
5,535 FFPI
5,877 FRPI
250 kilobytes per disk
500 kilobytes per disk
+5 volts + 0.25 volt at 800
milliamperes, maximum, with
less than 100 millivolts
peak-to-peak ripple.
+12 volts
~
0.6 volt, 1.3
amperes, maximum,
surge for
50 milliseconds, 800
milliamperes average.
When prepared for shipment by
Tandon, the drive meets the
requirements of NSTA preship-
ment test procedure
Project lAo
TABLE 2-2
RELIABILITY SPECIFICATIONS
Error Rates, exclusive of
external sources, e.
g.:
electronics, defective and
contaminated diskettes
Soft Errors (Recoverable)
Hard Errors (Nonrecoverable)
Seek Errors
Mean Time Between Failures
Mean Time To Repair
One in 10 9 bits
One in 10 12 bits
One in 10 6 seeks
Cl,OOO hours,
25 percent duty cycle
30 minutes
TANDON CORPORATION, CHATSWORTH, CALIFORNIA 91311
2-4
I
179DDD-001
REV. A
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