2 1 1 2 A MICROPOLIS NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/HH Cylinders 1760| 1024| 1010| Capacity form/unform 1050/ 1214 MB Heads 15| 16| 16| Seek time / track 10.0/ 1.5 ms Sector/track | 63| 63| Controller IDE / AT Precompensation Cache/Buffer 512 KB SEGMENTED Landing Zone Data transfer rate MB/S int Bytes/Sector 512 5.600 MB/S ext Recording method RLL operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 5 50 | -40 65 Power: sleep W Humidity % 10 90 | 10 95 standby W Altitude km -0.061 3.048| -0.305 15.240 idle W Shock g 5 | 60 seek 13.0 W Rotation RPM 5400 read/write 11.5 W Acoustic dBA 35 spin-up W ECC Bit 88,REED SOLOMON MTBF h 300000 Warranty Month 60 Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** MICROPL. 2112A PRODUCT DESCRIPTION 135814 REV. A +---------------------------------------------------------+ | |XX J2 | 1xx Power | |XX ++ LED |XX ++ |XX | |XX J1 | 1-+ |XX | W1+-+J6 |XX | W2+-+ |XX | Reserved+-+ |XX | Reserved+-+ |XX | Reserved+-+ |XX | |X1 | | | |XX J3 | |XX Power +----------------------------------xxxxxx-----------------+ 1 +--------------------------------------+ | ++J4 | | ++ Frame Ground | | | | | | | | J2 J1 1 J3 | +xxxxx1-XXXXXXXXXXXXXXXXXXXXXX-XXXXXXXX+ +Power--------Signal------------Power-1+ ********************************************************************** J U M P E R S ********************************************************************** MICROPL. 2112A PRODUCT DESCRIPTION 135814 REV. A Jumper Setting ============== Master/Slave Selection ---------------------- The interface allows up to two drives (a Master and one Slave) to be attached to the AT/IDE bus. +----------------+-------------------------------------+ | Jumpers | | | W2 W1 |Description | +----------------+-------------------------------------+ | CLOSED CLOSED |Drive emulates both Master and Slave | | |(The factory default definition) | +----------------+-------------------------------------+ | CLOSED OPEN |Drive is Master, Slave is present | +----------------+-------------------------------------+ | OPEN CLOSED |Drive is Slave | +----------------+-------------------------------------+ | OPEN OPEN |Drive is Master | +----------------+-------------------------------------+ Drive emulates both Master and Slave: Specifies that one 2112A can emulate both the Master drive (Drive 0) and the Slave Drive (Drive 1). This option allows for existing host systems to utilize the full capacity of the drive. When the drive is configured as both the Master and the Slave, the Master's (Drive 0) capacity is set to 1024 logical cylinders, 16 logical heads, and 63 logical sectors. This setting yield 528,482,304 bytes. The Slave's Drive (Drive 1) is set to the remaining storage on the disk drive. For this configuration, the recommended drive type setting in the computer's CMOS memory is as follows: Drive 0: 1024 logical cylinders, 16 logical heads, 63 logical sectors Drive 1: 1010 logical cylinders, 16 logical heads, 63 logical sectors Note: The capacity of the 2112A drive may exceed the capacity that the host can access. This limitation stems from the communication link between the DOS and the BIOS. A typical limit is 1024 cylinders, 16 heads, and 63 sectors. For optimum use of the following options, the BIOS may need to be modified. Drive is Master, Slave is present: Specifies the Master Drive (Drive 0) when two 2112A drives are used in a system. The other drive is Slave. Drive is Slave: Specifies the Slave drive (Drive 1) when two 2112A drives are used in a system. The other drive is Master. Drive is Master: Specifies the Master drive (Drive 0) when one 2112A drive is used in a system. J2 DC Power and pin connector assignments ------------------------------------------- +---------+ pin 1 +5 V | 1 2 3 | pin 2 +12 V +---------+ pin 3 Return J3 DC Power and pin connector assignments ------------------------------------------- +------------+ pin 1 +12 V | 1 2 3 4 | pin 2 +12 Return +------------+ pin 3 + 5 Return pin 4 + 5 V ********************************************************************** I N S T A L L ********************************************************************** MICROPL. 2112A PRODUCT DESCRIPTION 135814 REV. A Notes on installation ===================== Drive mounting -------------- horizontally vertically +-----------------+ +--+ +--+ +------------------+ | | | +-----+ +-----+ | | | x | | | | | | | | x+----------------+x +-+-----------------+-+ | | | | | | ||x x|| +---------------------+ | | | | | | || x x || | | | | | | || x x || x x | | | | | | || x x || +------x------x-------+ | +-----+ +-----+ | || xx || +-+------x--x-------+-+ +--+ +--+ || x x || | xx | || x x || | x x | || x x || +---x--------x----+ |x x| x x x++----------------++x Dimensions and Mounting ----------------------- The 2112A drive uses industry-standard mounting techniques for 3 -inch full-height Winchester disk drives. The drive is designed such that the outer frame should be hard mounted to the host equipment; no additional/external shock mounts should be used. Recommended orientation is vertical on either side, or horizontal with the Device Electronics board down; other mounting orientations may be used provided the ambient air temperature around the drive is kept at or below 50*C (122*F). The term "ambient" becomes imprecise when referencing a drive in a system, since it is difficult to determine where the air temperature should be measured. To help resolve this confusion, Micropolis specifies that the maximum HDA casting temperature (regardless of the air temperature around the drive) is 60*C (140*F). Not exceeding this temperature will ensure that the head-to-media interface never exceed its temperature limit. Mounting Screws --------------- 3 per side 6-32 UNC-2B thru 4 on bottom 6-32 UNC-2B thru Caution: The mounting screws must be selected so that they do not penetrate the bottom mounting holes by more than 0.20 inches or the side mounting holes by more than 0.156 inches. Screws that are too long will short to PCBA components and/or prevent proper operation of the shock mount system and may damage the HDA. Interface Electrical Characteristics ------------------------------------ Interface control, data, and status signals are TTL compatible in both send and receive directions. Maximum cable length is 18 inches. The following cable specification are provided to ensure system integrity. Driver IOL sink current = 12 milliamps (minimum) Driver IOH source current is -400 microamps (maximum) Cable capacitive loading = 200 picofarads (maximum) Signal Connector J1 ------------------- J1 is a 40-pin connector. The bus interface connection is made via this connector. Signals on J1 include the 16-bit data bus and control and address lines. Recommended Cable: 3M Scotchflex 3302-40 or equivalent. Mating connector: 3M 3417-7000 or equivalent. J2 DC Power Connector ---------------------- J2 is a 3-pin, keyed connector. Both +5V and +12V are supplied to the drive via this connector. This power connector is usually used by low-power computer systems. Mating Connector: MOLEX 5480 or equivalent J3 DC Power Connector ---------------------- J3 is a 4-pin, keyed, AMP MATE-N-LOCK connector. Both +5V and +12V are supplied to the drive via this connector. This power connector is the industry standard and is used in most applications. Mating Connector: AMP 1-480424-0 or equivalent Pins: AMP 350078-4 Suggested Wire Size: 18 AWG Ground Connector J4 ------------------- 3/16-inch spade lug J4 is provided for grounding. Systems characteristics determine proper ground connection. Mating connector: AMP 60972-2 or equivalent. Adjustments and Maintenance --------------------------- 2112A drives requires no adjustments or periodic maintenance; additionally, no mechanical adjustments are required to prepare a system for handling or shipment. Field-Replacable Components --------------------------- The concept of repair by replacement of complete functional components is utilized in the 2112A, resulting in an MTTR of less than 15 minutes. ********************************************************************** F E A T U R E S ********************************************************************** MICROPL. 2112A PRODUCT DESCRIPTION 135814 REV. A The Micropolis 2112A high-performance, 3 -inch, full-height Rigid Disk Drive provides OEMs with high-speed, random access data storage and meet the needs of diverse applications environment. The drive is compatible with the proposed ANSI ATA (AT Attachment) specification. How to Access Large Capacity IDE Disk Driver -------------------------------------------- Many disk drive users think that the IDE interface cannot be used with high capacity disk drives. This is absolutely not so! The Disk Operating System (DOS) provides for the file system stored in the disk drive. The application programs access the disk drives by activating specific DOS interrupts. The DOS interrupt service program activates the DOS disk drive device driver that services disk access request. The DOS driver activates the BIOS interrupt 13H. The BIOS program services disk access request by activating the disk drive IDE interface commands. The ONTRACK MANAGER utility software including the following features: a. Automated installation and setup b. Driver software for single drive 1 GB operation c. Read/Write multiple sector performance driver Seek Time --------- | 2112A | ----------------------------------+--------+ Track-to-Track read msec. typ. | 1.5 | write msec. typ. | 2.5 | Average msec. typ. | 10 | msec. max. | 25 | Latency msec. avg. | 5.56 | ----------------------------------+--------+