D 5 1 2 7 NEC
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 5.25"/FH Cylinders 615| | |
Capacity form/unform 33/ 38 MB Heads 4| | |
Seek time / track 85.0/ 8.0 ms Sector/track 26| | |
Controller RLL / ST506 Precompensation
Cache/Buffer KB Landing Zone
Data transfer rate 0.938 MB/S int Bytes/Sector 512
0.938 MB/S ext
Recording method RLL operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C |
Power: sleep W Humidity % |
standby W Altitude km |
idle W Shock g |
seek W Rotation RPM 3600
read/write W Acoustic dBA
spin-up W ECC Bit
MTBF h
Warranty Month
Lift/Lock/Park NO Certificates
**********************************************************************
L A Y O U T
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NEC D5127/5147H PRODUCT DESCRIPTION
+---------------------------------------------------------+
| |XX
| |XXJ2
| |XX 20-P
| PWB |2X
| Terminator +-------+ |x J4
| Resistor | SW1 |1 | Ground
| ON/OFF Switch-------+ |XX
| |XX
| |XXJ1
| |XX
| Drive Address---+ |XX 34-P
| Switch | SW2 |1 |XX
| +-----+ |XX
| |2X
| |
| |XXPower
| |XXJ3
+---------------------------------------------------------+ 1
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J U M P E R S
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NEC D5127H/5147H PRODUCT DESCRIPTION
Jumper Setting
==============
Switch1 - 1, 2, 3, 4 Drive Select
----------------------------------
+----------+--------------------------------+
| Drive | SWITCH 1 |
| Select | SW1 | SW2 | SW3 | SW4 |
+----------+-------+-------+-------+--------+
| 1 | CLOSED| OPEN | OPEN | OPEN |
+----------+-------+-------+-------+--------+
| 2 | OPEN | CLOSED| OPEN | OPEN |
+----------+-------+-------+-------+--------+
| 3 | OPEN | OPEN | CLOSED| OPEN |
+----------+-------+-------+-------+--------+
| 4 | OPEN | OPEN | OPEN | CLOSED |
+----------+-------+-------+-------+--------+
Switch1 - 5, 6, 7 Not USED!
---------------------------
Switch1 - 8 Radial, daisy chain mode
-------------------------------------
CLOSED Drive configured for radial mode.
OPEN Drive configured for daisy chain mode.
Switch2 - 1-8 Termination
-------------------------
All jumpers
CLOSED Termination is enabled
**********************************************************************
F E A T U R E S
**********************************************************************
NEC D5127H/5147H PRODUCT DESCRIPTION
Seek Time
---------
| D5147 |
| D5127 |
----------------------------------+--------+
Track-to-Track msec. typ. | 8 |
Average msec. typ. | 40 |
Average msec. max. | 70 |
----------------------------------+--------+