A - 2 6 0 A T AREAL NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 2.5"/SUPERSLIMLINE Cylinders 1453| 856| | Capacity form/unform 263/ MB Heads 4| 10| | Seek time / track 15.0/ 3.0 ms Sector/track | 60| | Controller IDE / AT Precompensation Cache/Buffer 32 KB Landing Zone Data transfer rate 1.500 MB/S int Bytes/Sector 512 MB/S ext Recording method RLL 1/7 operating | non-operating -------------+-------------- Supply voltage 5 V Temperature *C 5 55 | -40 60 Power: sleep 0.1 W Humidity % 8 80 | 8 80 standby 0.2 W Altitude km -0.061 3.048| -0.061 12.192 idle 1.6 W Shock g 10 | 100 seek 3.1 W Rotation RPM 2981 read/write 2.2 W Acoustic dBA 35 spin-up 4.8 W ECC Bit 88,REED SOLOMON MTBF h 100000 Warranty Month Lift/Lock/Park YES Certificates CSA,TUV,UL1950 ********************************************************************** L A Y O U T ********************************************************************** AREAL A-130/A-260 TECHNICAL MANUAL REV. 2.0, JULY 1, 1993 +---------------------------------------------------------+ | | | |XX44 | |XX | PCBA SIDE |XX I | |XX N | |XX T | |XX E | |.X R | |XX F | |XX A | |XX C | |XX E | |XX | |XX | | 2 | |XXJP1 | |XX50 +---------------------------------------------------------+ ********************************************************************** J U M P E R S ********************************************************************** AREAL A-130/A-260 TECHNICAL MANUAL REV. 2, JULY 1, 1993 Jumper Setting ============== x = Factory default configuration JP1 Master/Slave Configuration ------------------------------- Interface Pins 47 and 48 OPEN Master CLOSED Slave ********************************************************************** I N S T A L L ********************************************************************** AREAL A-130/A-260 TECHNICAL MANUAL REV. 2.0, JULY 1, 1993 Notes on Installation ===================== Recommend Mounting Configuration -------------------------------- horizontally vertically +-----------------+ +--+ +--+ | | | +-----+ +-----+ | | | | | | | | | +-+-----------------+-+ | | | | | | +---------------------+ | | | | | | | | | | | | | | | | | | +---------------------+ | +-----+ +-----+ | +-+-----------------+-+ +--+ +--+ | | | | +-----------------+ The drive is designed to be used in applications where the unit may experience extreme levels of both shock and vibration. There are no limits on mounting orientation and mounting clearance is not required. Maximum insertion length of the 3 mm x .5 screws is 0.15" (3.81 mm). Physical Connection - AT Interface ---------------------------------- Both power and control signals are supplied to the drive through a single 44 pin cable. Please note that separate power is supplied to the logic and motor circuits to minimize noise coupling. Maximum length of this 44 pin cable is 18 inches (457 mm) since it is TTL driven. Two drives may be daisy chained on this cable, however, the cable remains restricted to 18 inches. Recommended mating connectors are as follows: +-------------------+-------------+---------+-------------------+ |Connector Style | 3M |Dupont | Elco | +-------------------+-------------+---------+-------------------+ |Flex Cable | N/A |86456-044|N/A | +-------------------+-------------+---------+-------------------+ |Ribbon Cable | N/A |N/A |20-8394-2044-04-101| +-------------------+-------------+---------+-------------------+ |PCBA Straight | N/A |86455-044|20-8390-2044-00-101| +-------------------+-------------+---------+-------------------+ |PCBA Rigth Angle | | | | |Areal Org. Height |150250-5122TH|N/A |N/A | |MCC Spec Height |150250-5022TH|88333-044|20-8390-2044-04-101| +-------------------+-------------+---------+-------------------+ Electrical Description - AT Interface ------------------------------------- All signal levels are TTL compatible. A logic "1" is from 2.0 volts to 5 volts. A logic "0" is from 0.0 volts to 0.7 volts. The interface between the drive adapter and the drive is termed the "Host Interface". The set of registers in the I/O space of the Host is known as the "Task File". All signals on the Host Interface have the prefix Host. All negativ- ely active signals are prefixed with a "-" designation. All positiv- ely signals are prefixed with a "+" designation. Signals whose source is the Host are "outbound" and those whose source is the drive are "inbound". +------+-------------------+------+----------------+ | Pin | Signal | Pin | Signal | +------+-------------------+------+----------------+ | 01 | -Host Reset | 02 | Gnd | | 03 | +Host Data 7 | 04 | +Host Data 8 | | 05 | +Host Data 6 | 06 | +Host Data 9 | | 07 | +Host Data 5 | 08 | +Host Data 10 | | 09 | +Host Data 4 | 10 | +Host Data 11 | | 11 | +Host Data 3 | 12 | +Host Data 12 | | 13 | +Host Data 2 | 14 | +Host Data 13 | | 15 | +Host Data 1 | 16 | +Host Data 14 | | 17 | +Host Data 0 | 18 | +Host Data 15 | | 19 | Gnd | 20 | Key | | 21 | +DREQ | 22 | Gnd | | 23 | -Host IOW | 24 | Gnd | | 25 | -Host IOR | 26 | Gnd | | 27 | -IOCHRDY | 28 | Not Connected | | 29 | -DACK | 30 | Gnd | | 31 | +Host IRQ | 32 | -Host IOCS16 | | 33 | +Host Address 1 | 34 | -Host PDIAG | | 35 | +Host Address 0 | 36 | +Host Address 2| | 37 | -Host CS0 | 38 | -Host CS1 | | 39 | -Host Active/Slave| 40 | Gnd | | 41 | +5 Volt Logic | 42 | +5 Volt Motor | | 43 | Gnd | 44 | +AT -XT | +------+-------------------+------+----------------+ Cabling ------- All 2.5 inch AT/IDE interface drives use a 44 pin male connector that incorporates power, control, and data signals. This configurations differs from the 3.5 inch IDE drives which employ a 40 pin signal connector and separate 4 pin power connector. Therefore, if you are replacing an existing 3.5 inch drive and are faced with a 40 pin connector, you will need an adapter card, such as the one shown below. If your computer is a laptop, a 44 pin connector should be mounted on the motherboard. Since power and ground are present at the interface connector, damage could be induced by offset or upside down connection. Please ensure that pin 20 of your system's female connector is properly keyed. Adapter Board ------------- GND +5VDC +----+-++ |O O O O| ++ +-----+-+ |+- Pin 44 | ++ |+----------------+ +------++ Pin 40 |+-------------------++-----++ |+--------------------++----++ |+---------------------++---++ |+----------------------+ || || || |+-----------------------+ ++Pin 1 +--++ Pin 1 ++ Functional Description ---------------------- The A130/260 contains all necessary mechanical and electronic parts to interpret control signals, position the heads, read and write data, and provide a contaminant free environment for the heads and disks. Air Filtration System --------------------- Inside the HDA, air is recirculated through a .3 micron filter, providing a clean environment for the recording heads and disks. Drive Mechanism --------------- A brushless DC motor rotates the spindle at 2981 RPM. Back EMF of the motor is used to quickly stop the spindle when power is removed. Read/Write Heads and Disks -------------------------- Data is recorded on a single 65 mm diameter glass disk using two 3370 type thin film heads. ********************************************************************** F E A T U R E S ********************************************************************** AREAL A-130/A-260 TECHNICAL MANUAL REV. 2.0, JULY 1, 1993 Introduction ------------ Areal Models A130 and A260 are 2.5 inch, high capacity, ruggedized, high performance, low power, low profile disk drives. By design, they are ideal for notebook, laptop, or portable applications. Both incorporate the IBM PC-AT/XT Task File control logic and requires only chip select decode logic to allow bus connection. This logic is typically embedded in your computer motherboard. Key Features ------------ - Automatic Microprocessor Controlled Diagnostics - Buffer Size 32 KB or 64 KB - Embedded Servo System with DSP Control - Extremely Low Power Requirement - Internal Air Filtration System - Lightweight at Less than 5 Ounces - Programmable Low Power Modes - Reed Solomon "Correction on the Fly" - Soft "Constant Density" Recording Method - 100 G Non-Operation Shock Tolerance Error Correction ---------------- The A130/260 employs a 88 bit ECC polynomial for Data Field error detection and correction, plus a 16 bit CRC code for ID Field error detection. One 31 bit burst or two 11 bit bursts can be corrected on the fly. Seek Time --------- +----------------------------------+--------+ |Track-to-Track msec. typ. | 3 | +----------------------------------+--------+ |Average msec. typ. | 15 | | msec. max. | 22 | +----------------------------------+--------+ |Latency msec. avg. | 10.1 | +----------------------------------+--------+ Formatting ---------- Once the drive has been partitioned, DOS requires that it be format- ted. Formatting checks for defective sectors (and deallocates them if necessary) and builds the FAT (file allocation table). Make sure to use the "/s" option so that your hard drive will be bootable. Example: type "FORMAT C:/S". Format will only recognize hard drives that have valid DOS partitions, therefore FDISK must precede formatting. If an "Invalid Drive Specification" error is reported, the drive has not successfully been partitioned. Please run FDISK once more. Setup Table Alteration ---------------------- Whenever a peripheral device is changed or assed, your computer's CMOS table may require modification. This table is typically accessed at power on by pressing the "Del" key, or by running the "Setup" program. Once inside this setup program, you will be prompted for various parameters, but only need to specify the number of heads, sectors, and cylinders. Other variables such as write current, landing zone, etc., are determined by Areal engineering during the design phase and are hard coded into the drive. The A130 is most efficient when specified as a 5 head, 60 sector, 856 cylinder device. These exact parameters may not be available as an existing drive type. If this is the case, please locate the user definable BIOS entry (typically 47 or 48) and enter the parameter listed above. From these parameters, you can calculate total capacity of the A260 for example as 856 x 10 x 60 x 512 = 262,963,200 bytes, however, even on a freshly formatted disk this total capacity cannot be used by the user, since some data space is used by DOS for FAT tables, directory space, etc. Most programs report capacity in this '262 million byte' format, however, some programs such as FDISK still use the old standard of 'megabytes'. In the megabyte measurement, total byte capacity is devided by 1.024 x 1.024, reducing the reported capacity to 250.781 megabytes.