Q M 3 0 8 5 0 T B A T R A I L B L A QUANTUM
Native| Translation
------+-----+-----+-----
Form 3.5"/SLIMLINE Cylinders 3653| | |
Capacity form/unform 850/ MB Heads 4| | |
Seek time / track 14.0/ 5.0 ms Sector/track | | |
Controller IDE / ATA2 FAST/ENHA Precompensation
Cache/Buffer 128 KB ADAPTIVE Landing Zone
Data transfer rate 6.700 MB/S int Bytes/Sector 512
16.667 MB/S ext PIO4
Recording method RLL 1/7 operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 55 | -40 75
Power: sleep 1.0 W Humidity % 5 85 | 5 95
standby 1.0 W Altitude km -0.226 3.048| -0.226 12.192
idle 3.3 W Shock g 10 | 70
seek 6.6 W Rotation RPM 4500
read/write 4.5 W Acoustic dBA 30
spin-up W ECC Bit 48,REED SOLOMON
MTBF h 300000
Warranty Month 36
Lift/Lock/Park YES Certificates
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L A Y O U T
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QUANTUM QM30420/30850AT TRAILBLAZER JUMPER SETTING
+-----------+---------------------------------------------+
| | +-+-+-+ |XX
++ | +-+ +-+-+-+ |XX
|+----------+-+ | SP DS CS |XX
|+----------+-+ | |XX
++ | +-+ |XX AT-Bus
| | |XX
| | |XX
| | |XX
| | |XX
| | |XX
| | |XX
| | |
| | |
| | |xx
| | |XX Power
+-----------+---------------------------------------------+xx
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J U M P E R S
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QUANTUM QM30420/850AT TRAILBLAZER JUMPER SETTING
Jumper Setting
==============
The Trailblazer 420/850AT has three drive mode jumper options; DS,
SP, and CS.
- The MASTER of a two drive configuration or as the only drive:
Jumper DS only, SP and CS open.
- A SLAVE drive in a two drive configuration: Remove any jumpers
across DS, SP or CS.
- CS not used, DO NOT install a jumper across this position.
Drive Select
------------
The DS jumper is used to identify the drive as a MASTER drive in a
single or dual drive configuration. This is the factory default
setting.
Slave Present
-------------
The SP jumper is only used when the second drive in a two drive
configuration does not support DASP. DASP (Drive active/drive 1
present) is a CAM (Common Access Method) defined signal that
indicates the presence of a second drive, DASP is used during power
on initialization and after a reset. Prior to this definition,
products were introduced which did not utilize this method to detect
the presence of a second drive. The SP jumper is only used on the
Master drive, with the DS jumper, when the second drive does not
support DASP.
Cable Select
------------
The CS (Cable Select) jumper is only used in systems that support
this feature. Cable Select allows for each IDE disk drive to be
jumped the same and the position on the cable determines the ID.
This requires special cable and both drives on the interface would
have to support this feature.