6 2 8 ATASI NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/FH Cylinders 1225| | | Capacity form/unform 241/ 280 MB Heads 11| | | Seek time / track 20.0/ 5.0 ms Sector/track | | | Controller ESDI Precompensation Cache/Buffer KB Landing Zone Data transfer rate 1.250 MB/S int Bytes/Sector 512 MB/S ext Recording method RLL 2/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 10 50 | -40 60 Power: sleep W Humidity % 8 80 | 5 95 standby W Altitude km 3.000| 12.000 idle 29.0 W Shock g 2 | 20 seek 57.0 W Rotation RPM 3600 read/write W Acoustic dBA 50 spin-up 64.0 W ECC Bit MTBF h 30000 Warranty Month Lift/Lock/Park YES Certificates CSA,FCC,IEC380,UL478,VDE ********************************************************************** L A Y O U T ********************************************************************** PRIAM MODELS 617/628/638 OEM MANUAL 308083 REV. A EC 11904 +---------------------------------------------------------++-+ | +-------------J4 |+-J11 | +-------------+ |XX | |XX | |XXJ2 | +---------+ |XX | +---------S1 | ++-+ |XX ++-+J12 +---------+ |XX |Front Panel | J6 | |XX | +---------+ |XXJ1 | Terminator |XX | |XX | | | +---------------+ |XXLabel | | | |XX +-------------------+ J5 +---------------------+ +---------------+ ********************************************************************** J U M P E R S ********************************************************************** PRIAM MODELS 617/628/638 OEM MANUAL 308083 REV. A EC 11904 Jumper Setting ============== Switch S1 The first three switch positions select the drive's address number. They are binary coded, and no two drives in the chain may have the same number selected. The other three positions set sector size, and spindle control option. Drive Select S1 --------------- +----------+-----------------------+ | Drive | Jumpers | | Selected | 3 | 2 | 1 | +----------+-------+-------+-------+ | NONE | OPEN | OPEN | OPEN | OPEN = OFF | 1 | OPEN | OPEN | CLOSED| CLOSED = ON | 2 | OPEN | CLOSED| OPEN | | 3 | OPEN | CLOSED| CLOSED| | 4 | CLOSED| OPEN | OPEN | | 5 | CLOSED| OPEN | CLOSED| | 6 | CLOSED| CLOSED| OPEN | | 7 | CLOSED| CLOSED| CLOSED| +----------+-------+-------+-------+ Up to seven drives may be active and selected. The three positions, S1-1, S1-2, and S1-3, correspond to three drive select lines on the control bus. Setting the sector size ----------------------- There are two methods of selecting the size of a sector: via the SET SECTOR command and via switch S1 positions 4 and 5. You might prefer the command since it overides the switch settings. 1. Setting Sector Size by Command. Send SET SECTOR command with the desired sector size - in bytes per sector - in bit positions 11-0. The resulting sector will be an even number. 2. Setting Sector Size by Switch. +------------+--------------------+-------------+------------+ | | Physical |Logical | Track | |S1-4 S1-5 | Size in Bytes |Size in Bytes| Capacity | +------------+--------------------+-------------+------------+ | OFF ON | 64 Sectors of 324 | 256 | 16384 | +------------+--------------------+-------------+------------+ | ON OFF | 36 Sectors of 578 | 512 | 18432 | +------------+--------------------+-------------+------------+ | OFF OFF | 35 Sectors of 594 | 512 | 17920 | +------------+--------------------+-------------+------------+ | ON ON | 19 Sectors of 1096 | 1024 | 19456 | +------------+--------------------+-------------+------------+ S1 Spindle Control Option ------------------------- For those applications in which multiple devices share a common power supply, starting units sequentially i srecommended. With S1-6 off the drive will sequence up after both supplies are within tolerance. S1 RESERVED ----------- S1-7 RESERVED. S1 Write Protect ---------------- With S1-8 on, writing to the drive is prevented. Since this timeout can retard system performance, a 1 millisecond timeout priod is available if S1-7 is on. Note that the controller must also recognize this abbreaviated timeout if the system is to function correctly. J11 Remote Connector -------------------- An optional connector attached to J11 allows certain switch selectable options of switch S1 to be controlled remotely. The corresponding positions on S1 must be off. (Positions S1-4/5/6/7 must always be operated at the S1 location.) Use the following list to replace S1 options: J11-1 & 2 replaces S1-1 J11-3 & 4 replaces S1-2 J11-5 & 6 replaces S1-3 J11-7 & 8 replaces S1-8 ********************************************************************** I N S T A L L ********************************************************************** PRIAM MODELS 617/628/638 OEM MANUAL 308033 REV. A EC 11904 Notes On Installation ===================== Termination ----------- Every drive is shipped from PRIAM with a terminator installed to minimize reflections and ensure maximum data integrity. In a daisy chain of multiple drives, remove all terminators except the one in the final drive. DC power requirements --------------------- PRIAM's 5.25-inch drives require power from two dc voltages +5 and +12 volts. DC power is supplied via a 4-pin connector (AMP 350211-1 Receptacle or equivalent). Actuator -------- The read/write heads and servo head are mounted on a carriage, supported by precision ball bearings. A voice coil is attached to the carriage and mounted between permanent magnets. These components comprise the linear voice coil head mechanism. This mechanism provides the driving force to move the carriage for head positioning. The magnetic field in the gap between the magnets allows the acceleration of the carriage to be controlled by the voice coil current. Drive current for the coil is supplied by the actuator servo control circuit. Crash stops protect the heads if a malfunction causes the actuator servo circuit to lose control. When the drive is powered down, the carriage is driven to a non-data area (head landing zone) at the inner diameter of the disk, where it is locked to prevent head/media damage in case of shock during movement of equipment. Installation direction ---------------------- horizontally vertically +-----------------+ +--+ +--+ | | | +-----+ +-----+ | | | | | | | | | +-+-----------------+-+ | | | | | | +---------------------+ | | | | | | | | | | | | x x | | | | | | +------x------x-------+ | +-----+ +-----+ | +-+------x--x-------+-+ +--+ +--+ | xx | | x x | +---x--------x----+ x x Recommended orientation is either vertical on either side or horizontal with PCB down. In the final mounting configuration, ensure that operation of the four shock mounts is not inhibited. Shipping Damage Inspection -------------------------- Priam disk drives are packaged to withstand normal handling in reusable shipping containers. It is the customer's responsibility to notify the carrier if shipping damage should occur to a drive. Note: When handling the drive while still in the shipping container, ensure that the container remains in the upright position indicated by the attached labels. Do not place drives in vertical positions closer than 2 to 3 inches apart to avoid hitting and breaking components. Shock and Vibration Precautions ------------------------------- The drives must be handled in such a manner as not to exceed the Non- Operational Shock and Vibration limits. Mounting Holes -------------- Eight mounting holes, four on the bottom and two on each side, are provided for mounting the drive in an enclosure. The size and location of these holes, are identical to the industry standard mini- floppy drive. J1/P1 Connector - Control Signals --------------------------------- Connection of J1 is through a 34-pin edge connector. The pins are numbered 1 through 34 with the even pins located on the component side of the PCB. Pin 2 is labeled. The recommended mating connector for P1 is AMP ribbon connector P/N 88373-3 or Molex 15-35-1341. All odd pins are ground. J2/P2 Connector - Data Signals ------------------------------ Connection to J2 is through a 20-pin edge connector. The pins are numbered 1 through 20 with the even pins located on the component side of the PCB. The recommended mating connector for P2 is AMP ribbon connector P/N 88373-6, or Molex P/N 15-35-1201. Pin 2 is labeled. J3/P3 Connector - Power ----------------------- DC power connector (J3) is a 4-pin AMP Mate-N-Lok connector P/N 350211-1 mounted on the solder side of the PCB. The recommended mating connector (P3) is AMP P/N 1-480424-0 utilizing AMP pins P/N 61314-4 (Strip) or P/N 60617-4 (Loose piece). J4/P4 Frame Ground Connector ----------------------------- Faston AMP P/N 61761-2 Recommended mating connector AMP 62187-1 If used, the hole in J4 will accomodate a wire of size 18AWG max. ********************************************************************** F E A T U R E S ********************************************************************** PRIAM MODELS 617/628/638 OEM MANUAL 308083 REV. A EC 11904 General Information ------------------- PRIAM 5.25-inch disk drives use advanced Winchester and micro- processor technologies to provide users with low-cost disk drives having high capacity, fast access, and long-term reliability. A linear voice coil positioner with track following servo enables the PRIAM 5.25-inch drives to position mini-Winchester type heads quickly and precisely. These low-force heads promote high data reliability. Advanced 5.25-inch, carbon overcoated, thin film, Winchester technology disks are driven by a brushless dc motor. The heads, disks, and head positioner coil and carriage are enclosed in a sealed, contamination-resistant chamber to ensure high data reliability. Media Defects ------------- A media defect is some physical characteristic of the media which results in a repetitive read error when the drive is operating within specified operating conditions. Valid data must not be written over known media defects. All drives are chipped with a defect map, listing the following information: - Cylinder - Head - Defect Location - Defect Length (in bits) The defect location is specified in bytes ( 10 bytes) from the leading edge of index. The maximum number of defects allowed at the time of initial shipment is as follows: 617 628 638 - Defects per Drive (max allowed) 85 140 190 - Defects per Surface (max allowed) 25 25 25 There will be zero defects on track zero, heads 0-7 inclusive, at the time of initial shipment. Air Filtration Components ------------------------- A self-contained recirculating filter supplies clean air through a 0.3 micron filter to the sealed HDA. A separate filter allows for ambient atmospheric pressure equalization within the assembly without the induction of contaminants.