W R E N V F H 9 4 1 8 1 - 3 8 5 H IMPRIMIS
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 5.25"/FH Cylinders 791| | |
Capacity form/unform 330/ 385 MB Heads 15| | |
Seek time / track 10.7/ 3.0 ms Sector/track 55| | |
Controller SCSI1 SINGLE-ENDED Precompensation
Cache/Buffer 32 KB LOOK-AHEAD Landing Zone
Data transfer rate 1.875 MB/S int Bytes/Sector 512
4.700 MB/S ext SYNC
Recording method RLL 2/7 operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C |
Power: sleep W Humidity % |
standby W Altitude km |
idle 21.0 W Shock g 10 | 32
seek W Rotation RPM 3600
read/write W Acoustic dBA
spin-up 59.0 W ECC Bit
MTBF h 100000
Warranty Month 12
Lift/Lock/Park YES Certificates
**********************************************************************
L A Y O U T
**********************************************************************
SEAGATE ST4385N PRODUCT SPECIFICATION
+---------------------------------------------------------+
| |+-+
| || |J4
| |+-+
| see Note (1)++ |XX
| || |XX
| || |XX
| Terminator +1 |XX J3
| resistor (1)++ |XX SCSI
| (SIPs) || |XX I/O
| || |XX
| +1 |XX
| (1)++ |XX
| || |XX
| || |XX1
| +1 |
| |XX Power
| |XX
+---------------------------------------------------------+ 1
NOTE
If you have #77701215k silk-screened near the 50-pin SCSI cable
connector, the pin-1 for the 3 terminating resistors is away from the
DC power connector.
**********************************************************************
J U M P E R S
**********************************************************************
SEAGATE ST4385N PRODUCT SPECIFICATION
Jumper setting
==============
J4 SCSI ID/Option Select Header
-------------------------------
+-----
|O O O
-PWA---+2--4--6--8--10-12-14-16----+
|o o o o o o o o| |O O
|o o o o o o o o| +-----
+1--3--5--7--9--11-13-15
| | +--+--+ | | +-------- RESERVED (some PWA's do not
| | | | | have these pins)
| | | | +----------- Parity check enable
| | | +-------------- Motor start option enable
| | +-------------------- SCSI ID
| +-------------------------- Terminator power
+----------------------------- Terminator power
J4 1-2/3-4 Terminator Power
-----------------------------
+-2-4--- +-2-4---
| X x | o x
| X o | xxx
+-1-3- +-1-3-
Terminator Power Terminator Power
from Drive from SCSI Bus
J4 SCSI ID
-----------
+----------+-----------------------+
| SCSI ID | Jumpers |
| | 5-6 | 7-8 | 9-10 |
+----------+-------+-------+-------+
| 0 | OPEN | OPEN | OPEN |
| 1 | OPEN | OPEN | CLOSED|
| 2 | OPEN | CLOSED| OPEN |
| 3 | OPEN | CLOSED| CLOSED|
| 4 | CLOSED| OPEN | OPEN |
| 5 | CLOSED| OPEN | CLOSED|
| 6 | CLOSED| CLOSED| OPEN |
| 7 | CLOSED| CLOSED| CLOSED|
+----------+-------+-------+-------+
J4 11-12 Motor Start Option
---------------------------
11-12 CLOSED Enables the Motor Start Option. In this mode of
operation the drive will wait for a Start Unit Command
from the Host before starting the Motor.
J4 13-14 Parity Check
----------------------
13-14 CLOSED Parity checking is enabled.
DC Power and pin connector assignments
--------------------------------------
--+------------+-- pin 1 +12 VDC
| 4 3 2 1 | pin 2 +12 Volts Return
+------------+ pin 3 + 5 Volts Return
pin 4 + 5 VDC
The drive is already low-level formatted at the factory.