home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Night Owl 6
/
Night Owl's Shareware - PDSI-006 - Night Owl Corp (1990).iso
/
010a
/
7080.zip
/
7080
Wrap
Text File
|
1991-10-05
|
6KB
|
157 lines
SPECIFICATIONS 7080A
Typical formatted capacity (MBytes)
7080A 81.4
Embedded Controller AT
Actuator Type Voice Coil
Number of Disks 2
Data Surfaces 4
Data Heads 4
Servo Embedded
Tracks per Surface 1,170
Track Density (Avg.) 1,394 tpi
Track Capacity (formatted) 18,432 bytes
Bytes per Block 512
Blocks per Drive 83,488
Sectors per Track 36 physical
PERFORMANCE
Seek Times (ms)
Track to Track 4
Average 19
Maximum 40
Average Latency (ms) 8.1
Rotation Speed (+/- 5%) 3,703
Controller Overhead 1 ms
Data Transfer Rate
(MBytes per sec)
To/From Media 1.35
To/From Buffer 5.4
Start Time
Power Up (0-3,703RPM)
Typical 10 sec
Maximum 10 sec
Start/Stop Cycles 10,000
Interleave 1:1
Buffer Size 32K
Interface AT
Recording Method 1,7 RLL
Recording Density - ID 30,625 bpi
Flux Density - ID
(Flux reversals per inch) 22,969
POWER REQUIREMENTS
MODE +12V DC +/-5% +5V DC +/-5% POWER
R/W 185 ma 300 ma 3.7W
Seek 243 ma 200 ma 3.9W
Idle 85 ma 180 ma 1.9W
Sleep 2 ma 20 ma 0.1W
Spin-Up 700 ma 180 ma 10 W peak
Standby 2 ma 120 ma 0.6W
PHYSICAL
Height 1.00" (2.54 cm)
Length 5.75" (14.61 cm)
Width 4.00" (10.16 cm)
Weight 1.3 lbs (.50 kg)
ENVIRONMENTAL
Temperature
Operating 5 deg C to 50 deg C
Non-operating -40 deg C to 60 deg C
Thermal Gradient 20 deg C per hour max
Humidity
Operating 8% to 80% non-condensing
Non-operating 8% to 80% non-condensing
Maximum Wet Bulb 26 deg C
Altitude (relative to sea level)
Operating -200 to 10,000 feet
Non-operating 40,000 feet max
RELIABILITY and MAINTENANCE
MTBF 150,000 hours
MTTR 30 minutes typical
Preventitive maintenance None
Component Design Life 5 years
SHOCK and VIBRATION
Shock measured a half-sine pulse. Vibration measured at swept sine,
1 Octave per minute.
Non-operating shock 70 Gs, 11 ms
Operating Shock 5 Gs, 11 ms (without
non-recoverable errors)
Non-operating Vibration
5-23 Hz 0.072" (double amplitude)
24-500 Hz 2 Gs peak amplitude
Operating Vibration
5-23 Hz 0.036" double amplitude
24-300 Hz 1 G peak amplitude
7080A INSTALLATION GUIDE
1.) Install the drive with the stripe on the 40 pin cable facing the
power connector. Use the user definable BIOS type to set up the
drive with 981 Cyls., 10 Hds., and 17 Sectors. No pre-comp and
no Landing Zone. This will format to 81 MBytes.
NOTE: If a user definable drive type is not available the other
acceptable parameters are 1024 Cyls., 9 Hds., and 17 sectors.
This drive type will only format to 76.5 MBytes.
2.) Boot the computer with your DOS boot disk. (at least 3.3 or higher)
3.) Go into the "FDISK" program and set the partitions as required for your
application.
4.) High-Level Format your partitions i.e. "FORMAT C:/S". Repeat
this for each of the partitions created.
5.) The 7080A is now ready for use. This drive does not require nor do
we recomend a Low-Level Format.
7040A/7080A Jumper Designation
J20| J19| J18| J17| J16| J15| J14| J13| J11
| | | | | | | |
Master/Slave | | | | | | | |
Only drive* J | J | | | | | | |
Master J | O | | | | | | |
Slave O | J | | | | | | |
ECC Bytes | | | | | | | |
4 Bytes* | | J | | | | | |
7 Bytes | | O | | | | | |
Drive Model Number | | | | | | | |
7040-40 MB | | | O | | | | |
7080-80 MB | | | J | | | | |
Idle Mode Latch | | | | | | | |
Option enabled | | | | J| | | |
Option disabled | | | | O| | | |
| | | | | | | |
| | | | | | | |
Drive Type | | | | | | | |
Cyls Heads Sec/Track MB | | | | | | | |
40 MB 981 5 17 40.7* | | | O | | O | O | O |
524 4 40 40.9 | | | O | | J | O | O |
J20 J19 J18 J17 J16 J15 J14 J13 J11
80 MB 832 6 33 80.4 | | | J | | J | O | O |
981 10 17 81.4* | | | J | | O | O | O |
1024 9 17 76.5 | | | J | | O | J | O |
528 8 39 80.4 | | | J | | J | J | O |
I/O Channel Ready | | | | | | | |
Typical AT bus* | | | | | | | | O
Faster I/O bus | | | | | | | | J
| | | | | | | |
J= Jumpered O=Open *= Default | | | | | | | |