193 lines
9.3 KiB
Plaintext
193 lines
9.3 KiB
Plaintext
SEAGATE TECHNOLOGY, INC.
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Customer Technical Support FAX Network +1 408 438-8137
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Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
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ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿
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³ United States +1 408 438-8771 ³ United Kingdom +44 628 478011 ³
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ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´
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³ Germany +49 89 140-9331 ³ Singapore +65 227-2217 ³
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ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ
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(C)opyright 1991
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ST-1401A AT Interface
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NOTE: This figure and the following description of each jumper position
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is only valid on drives that have J6 with 4 pins (2x2).-->¿
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³
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J5 Drive ID Select and ³ ³ J6 (located on side
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Configuration Select Header³ ³ near rear)
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ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÙ ÀÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄ
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³ o o1
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40-pin I/O Cable Connector ³ +5v ---o o
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ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͸ o o o o o1 ÍÍÍÍÍÍ
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J4³::::::::::ù::::::::1³ /ÄÄÄÄÄÄÄÄÄ\ o o o o o ³ ³
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ÍÏÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÏͳ 0 0 0 0 ³ÍEÍDÍCÍBÍAÍ Remote LED³Ù À³Reserved
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(pin 20 missing for ÀÄ5ÄGÄGÄ12Ù (see below) Connection³ ³Jumper
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keying purposes) DC Power ³Position
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J5
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JUMPER | FUNCTION:
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A REFSIG: This location provides a port for external connection
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of the synchronized spindle reference signal (pin-1) and ground
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(pin-2). The reference signal is bi-directional, single-ended, and
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terminated without an external resistor. It is also available on J4
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pin-28 if the factory jumper is installed. The drive will
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self-determine if it is a master of slave for spindle synchronization.
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B HOST SLV/ACT: When this shunt is installed, -SLAVE PRESENT
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(provided by the output of a 74HCT14) is applied to J4 pin-39 for
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systems that require this signal from the Master drive. If jumper "B"
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is installed, then jumper "E" must not be installed.
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C MASTER: When this shunt is installed, the drive is configured
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as the Master. When not installed, the drive is a Slave.
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D SLAVE PRESENT: When installed, this shunt indicates to the
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Master drive that a Slave is present. This shunt must be installed on
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the Master drive in a two-drive system.
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E ACTIVE: When this shunt is installed, DASP- is made present on
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J4 pin-39. If "E" is installed, then "B" must not be installed.
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======================================
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NOTE: This figure and the following description of each jumper position
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is only valid on drives that have J6 with 6 pins (2x3).-->¿
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³
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J5 Drive ID Select and ³ ³ J6 (located on side
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Configuration Select Header³ ³ near rear)
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ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÙ ÀÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄ
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³ o o o1
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³ +5v ---o o o
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40-pin I/O Cable Connector ³ ÍÍÍÍÍÍÍÍ
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ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͸ o o o o o1 1 2 3
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J4³::::::::::ù::::::::1³ /ÄÄÄÄÄÄÄÄÄ\ o o o o o Remote LEDÃÙ ³ À´Reserved
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ÍÏÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÏͳ 0 0 0 0 ³ÍÍÍÍÍÍÍÍÍÍÍ ConnectionÙ ³ ³Jumper
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(pin 20 missing for ÀÄ5ÄGÄGÄ12Ù (see below)Ä¿ ³ ÀPosition
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keying purposes) DC Power ÚÄÄÄÄÄÄÄÄÙ ATA mode ÄÄÙ
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³
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ÚÄJ5ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄ¿
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³ ÚÄ¿ ÚÄ¿ ÚÄ¿ 1 ³
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³ ³o³ o-C´oÃE´oÃG-o ³
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³ ³oÃB-o ³o³ ³o³ o ³
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³ ÀAÙ ÀDÙ ÀFÙ ³
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³ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ³
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ÀÄÄDefaults shown in solid linesÄÄÙ
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J5 Jumper Function Description
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-------------------------------
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A B (A=vertical, pins 9 & 10; B=horizontal, pins 8 & 10)
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OFF OFF Drive is the slave (Drive 1).
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OFF ON Drive is the master (Drive 0) with slave (Drive 1) present.
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ON* OFF Drive s the master (Drive 0).
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C (C=horizontal, pins 5 & 7)
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ON Slave (Drive 1) Present is connected to J4 pin 39. Jumpers
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"D" or "E" cannot be installed if jumper "C" is installed.
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D (D=vertical, pins 5 & 6)
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ON* DASP- is connected to J4 pin 39. Jumpers "C", "D", "F", or
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"G" cannot be installed if jumper "E" is installed.
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OFF REFSIG is not connected to J4 pin 39.
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E (E=horizontal, pins 3 & 5)
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ON REFSIG is connected to J4 pin 39. Jumpers "C", "D", "F",
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or "G" cannot be installed if jumper "E" is installed.
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OFF REFSIG is not connected to J4 pin 39.
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F (F=vertical, pins 3 & 4)
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ON* No external reference for REFSIG. Jumpers "E", "G", or "H"
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cannot be installed if jumper "F" is installed.
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OFF This location provides a port for external connection of
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the synchronized spindle reference signal (pin 3) and
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ground (pin 4).
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G (G=horizontal, pins 1 & 3)
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ON REFSIG is connected to J4 pin 28. Jumpers "E" or "F" cannot
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be installed if jumper "G" is installed.
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OFF REFSIG is not connected to J4 pin 28.
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J6 Jumper Funtion Description (2x3 jumper block)
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-------------------------------------------------
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1 Remote LED connection. Pin 6 is connected to +5v through a
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147 ohm resistor. Pin 5 is the LED driver.
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2 ATA mode. When the jumper is ON, IORDY is not connected to
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J4, DMACK- is connected to J4 pin 27, and DMARQ is
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connected to J4 pin 29. When the jumper is OFF, IORDY is
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connected to J4 pin 27, DMACK- is connected to J4 pin 29,
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and DMARQ is connected to J4 pin 21.
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3 Reserved jumper position.
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ST - 1401A
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UNFORMATTED CAPACITY (MB) ________________395.7
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FORMATTED CAPACITY (xx SECTORS) (MB) _____343.7*
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AVERAGE SECTORS PER TRACK ________________65 (rounded down)
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ACTUATOR TYPE ____________________________VOICE COIL
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TRACKS ___________________________________10,188
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CYLINDERS ________________________________1,132
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HEADS ____________________________________9
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DISCS ____________________________________5
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MEDIA TYPE _______________________________THIN FILM
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RECORDING METHOD _________________________ZBR RLL (1,7)
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INTERNAL TRANSFER RATE (mbits/sec) _______20 to 25
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SPINDLE SPEED (RPM) ______________________4,412
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AVERAGE LATENCY (mSEC) ___________________6.8
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BUFFER ___________________________________64 Kbyte
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Read Look-Ahead, Non-Adaptive,
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Multi-Segmented Cache
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INTERFACE ________________________________AT
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BYTES PER TRACK __________________________38,803 avg.
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TPI (TRACKS PER INCH) ____________________1,760
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BPI (BITS PER INCH) ______________________
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AVERAGE ACCESS (ms) ______________________12
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SINGLE TRACK SEEK (ms) ___________________2.5
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MAX FULL SEEK (ms) _______________________24
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MTBF (power-on hours) ____________________150,000
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POWER REQUIREMENTS: +12V START-UP (amps) _2.5
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+12V TYPICAL (amps) __0.54
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+5V TYPICAL (amps) ___0.53
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TYPICAL (watts) ______8
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MAXIMUM (watts) ______15
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WRITE PRECOMP (cyl) ______________________N/A
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REDUCED WRITE CURRENT (cyl) ______________N/A
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LANDING ZONE (cyl)________________________AUTO PARK
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IBM AT DRIVE TYPE ________________________**
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Possible translation: 726 cyl, 15 heads, 61 sectors = 340,116,480
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Note: A "custom" or "user-definded" CMOS drivetype may ask for a
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numerical value for the Write Precompensation cylinder and for the
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Landing Zone cylinder. A basic rule-of-thumb for drive models that do
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not require the old Write Precomp technique or a Landing Zone because
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they are Auto-Parking is to add 1 to the cylinder value being used. As
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an example: If cylinders equaled 820, then both Write Precomp and
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Landing Zone would be entered as 821. Some BIOS will convert this to
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65535 or -1, which are functionally equivalent to "none (not used)".
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* Two spare sector per cyliner, two spare cylinders per drive.
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** MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE. ALSO, CHECK TO
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SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE
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AVAILABLE. (see below)
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PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION
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ZBR = Zone Bit Recording = Variable sectors per track
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Already low-level formatted at the factory.
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Since a User-definable or Custom translation geometry may be used, it
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is imperative that the values be written down and kept with your
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permanent records for retrieval in the event of CMOS battery failure.
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Seagate reserves the right to change, without notice, product
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offerings or specifications. (4/12/91)
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