2 1 1 2 W D MICROPOLIS NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/HH Cylinders 1748| | | Capacity form/unform 1050/ 1214 MB Heads 15| | | Seek time / track 10.0/ 2.0 ms Sector/track | | | Controller SCSI2 DI/WIDE Precompensation Cache/Buffer 512 KB READ-AHEAD Landing Zone Data transfer rate MB/S int Bytes/Sector 512 20.000 MB/S ext SYNC 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 14.0 W Altitude km -0.061 3.048| -0.305 15.250 idle W Shock g 10 | 60 seek 15.5 W Rotation RPM 5400 read/write W Acoustic dBA 36 spin-up W ECC Bit 64 MTBF h 300000 Warranty Month Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** MICROPL. 2112WD PRODUCT DESCRIPTION 135863 REV. A +------------------------------------------------------------+ | ID0-+SCSI J9 | +J2 | || ID | W10-+ || ID3-+| | ++J7 Remote LED Connector +-W11 ++ +--+ ++++++ |XXXJ1 ++++W4 LED Option ID0+-+ |XXX | ID1| | |XXX | ID2| | ++ |XXX | ID3| | +W13XXX | COMPONENT SIDE PTY| | |XXX | WP | | |XXX | SP0| | |XXX | +-+ID3 SP1+-+ |XXX | | | SCSI ID |XXX | +-+ID0 | 1 | +-------+ |XXXJ3 | +++++++++ |XXXPower +---------------------------------------------------------+ 1 Connector J2 (detail) --------------------- J2, Right-angle Spindle Sync connector mounted on solder side (far side). Pin 1 Slave Sync; 2 Not Connected; 3 Master Sync; 4 Ground; +-+-+------------------------- | +-+ | | | | +-1-2-3-4--+ | | ++++++++ J2+----J1---- +-+-++++++++-+-+o o o o o +--++++++++----+o o o o | ++++++++ J9 +------- +ID0------------------- ********************************************************************** J U M P E R S ********************************************************************** MICROPL. 2112WD PRODUCT DESCRIPTION 135863 REV. A Jumper Setting ============== x = Factory default configuration SCSI ID ------- NOTE: THERE ARE THREE IDENTICAL GROUPS OF ADDRESS JUMPERS ON THE DEVICE ELECTRONICS BOARD - ONE GROUP IS NEAR THE LED; THE SECOND GROUP IS IN LINE WITH SP0, SP1, WP AND PTY; AND THE THIRD GROUP IS ADJACENT TO CONNECTOR J1. DON NOT USE MORE THAN ONE GROUP AT THE SAME TIME! +----------+-------------------------------+ | SCSI ID | Jumpers | | | ID3 | ID2 | ID1 | ID0 | +----------+-------+-------+-------+-------+ | 0 | OPEN | OPEN | OPEN | OPEN | +----------+-------+-------+-------+-------+ | 1 | OPEN | OPEN | OPEN | CLOSED| +----------+-------+-------+-------+-------+ | 2 | OPEN | OPEN | CLOSED| OPEN | +----------+-------+-------+-------+-------+ | 3 | OPEN | OPEN | CLOSED| CLOSED| +----------+-------+-------+-------+-------+ | 4 | OPEN | CLOSED| OPEN | OPEN | +----------+-------+-------+-------+-------+ | 5 | OPEN | CLOSED| OPEN | CLOSED| +----------+-------+-------+-------+-------+ | 6 | OPEN | CLOSED| CLOSED| OPEN | +----------+-------+-------+-------+-------+ | 7 | OPEN | CLOSED| CLOSED| CLOSED| +----------+-------+-------+-------+-------+ | 8 | CLOSED| OPEN | OPEN | OPEN | +----------+-------+-------+-------+-------+ | 9 | CLOSED| OPEN | OPEN | CLOSED| +----------+-------+-------+-------+-------+ | 10 | CLOSED| OPEN | CLOSED| OPEN | +----------+-------+-------+-------+-------+ | 11 | CLOSED| OPEN | CLOSED| CLOSED| +----------+-------+-------+-------+-------+ | 12 | CLOSED| CLOSED| OPEN | OPEN | +----------+-------+-------+-------+-------+ | 13 | CLOSED| CLOSED| OPEN | CLOSED| +----------+-------+-------+-------+-------+ | 14 | CLOSED| CLOSED| CLOSED| OPEN | +----------+-------+-------+-------+-------+ | 15 | CLOSED| CLOSED| CLOSED| CLOSED| +----------+-------+-------+-------+-------+ Up to sixteen devices (the host and fifteen targets) can be attached to the SCSI bus. The 2112WD has four ID jumpers. These jumpers are used to assign one of sixteen SCSI ID bits (0 - 15) to the drive. In multiple-device systems, each drive must have its own unique ID. Interface Termination --------------------- External termination only. Suggested end-of-cable Terminator: Methode DS2050-01-68D. External terminator provides termination for the interface lines. SP0/SP1 Spindle Control Option ------------------------------- SP0 CLOSED SP1 OPEN Spindle motor starts when START UNIT command is received. x SP0 OPEN Spindle motor starts at power-on. SP0/SP1 Spindle Delay Option ----------------------------- SP1 CLOSED SP0 OPEN Spindle start-up is delayed based on SCSI ID (12 seconds per ID). x SP1 OPEN Spindle start-up delay is disabled. PARITY Bus Parity Check Option ------------------------------- PTY CLOSED The drive neither generates nor detects parity. x OPEN The drive generates parity and and has parity detection enabled. WP Write Protect Option ------------------------ WP CLOSED The drive is write protected. x OPEN The drive is not write protected. W13 +5V to Bus Option ---------------------- x W13 CLOSED The drive sources TERMPWR OPEN Host system provides TERMPWR W4 Remote LED Option --------------------- x W4 CLOSED LED on Device Electronics board is enabled. OPEN LED (user supplied) at J7 is enabled. W10/11 Spindle Sync Termination -------------------------------- x W10/W11 CLOSED Spindle Sync is terminated OPEN Spindle Sync is not terminated The Rotational Position Locking field (MODE SELECT command, Page Code 04h) is used to specify spindle synchronization operation. Unsynchronized: If the drive is set to Unsynchronized (RPL = 00b), it ignores the SLAVE SYNC signal. Slave: If the drive is set to Slave (RPL = 01b), it does not generate the MASTER SYNC signal or the SLAVE SYNC signal but synchronizes its index to the SLAVE SYNC signal (J2, pin 1) generated by an external source. Signal termination is placed on the SLAVE SYNC signal at the first device and the last device in the chain only. Master: If the drive is set to Master (RPL = 10b), it generates the SLAVE SYNC signal (J2, pin 1) for use directly by the slave drives. Signal termination is placed on the SLAVE SYNC signal at the first device and the last device in the chain only. Master Control: If the drive is set to Master Control (RPL = 11b), it generates the MASTER SYNC signal (J2, pin 3). This output is used by the controller to generate the SLAVE SYNC signal (J2, pin 1) for the slaves. Signal termination is placed on the MASTER SYNC signal at the first device and the last device in the chain only. Signal termination is placed on the SLAVE SYNC signal at the first device and the last device in the chain only. J3 DC Power and pin connector assignments ------------------------------------------- -------------------+ --+ +-----J3-----+| pin 1 +12 VDC 1| | 4 3 2 1 || pin 2 +12 Volts Return -+ +------------+| pin 3 + 5 Volts Return ------------------+ pin 4 + 5 VDC ********************************************************************** I N S T A L L ********************************************************************** MICROPL. 2112WD/2112WS PRODUCT DESCRIPTION 135863 REV. A Notes on Installation ===================== Recommended mounting orientations --------------------------------- horizontally vertically +-----------------+ +--+ +--+ | | | +-----+ +-----+ | | | | | | | | | +-+-----------------+-+ | | | | | | +---------------------+ | | | | | | | | | | | | | | | | | | | +-----+ +-----+ | +--+ +--+ The drives use industry-standard mounting for 3 -inch full-height Winchester disk drives. The drives are designed such that the outer frame should be hard- mounted to the host equipment; no additional/external shock mounts should be used. Recommend orientation is vertical on either side, or horizontal with the Device Electronics board down; other mounting orientations may be used. No matter what mounting orientation is used, Micropolis specifies that the maximum HDA casting temperature not exceed 60*C (140*F). 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 mount- ing 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. Mounting holes -------------- 3 per side and 4 on bottom #6-32 UNC-2B thru. Multiple-Drive Systems ---------------------- Drive #1 +------HOST------+ +-----------------+ | +-----------+ +--+-SCSI-BUS-----+ J1 | | |Terminators| | | +------+ J3 J4 | | +-----------+ | | | +--------+--------+ | | | | +------------------+ +----------------+ | | Drive #2 | | | +-----------------+ | +-------+------+ J1 | | | o------+ J3 J4 | | | | +--------+--------+ | | | +------------------o | | Drive #3 | | | +-----------------+ | +-------+------+ J1 | | | o------+ J3 J4 | | | | +--------+--------+ | | | +------------------o | | Drive #4 | | | +--------------+--+ | +-------+------+ J1 |T | | o------+ J3 J4 +--+ | ---DC-VOLTAGES-----+ +--------+--------+ | ---GROUND--------------------------o------------------+ T = TERMINATORS Terminators are installed ONLY in the last physical drive in the control chain. Connection J4 is provided for grounding; system characteristics determine the proper ground connection. J1 Signal Connector ------------------- Recommended Cable: AMP P/N 2-57013-1 or equivalent Mating connector: AMP P/N 786090-7 or equivalent J2 Spindle Synchronization connector ------------------------------------ Recommended mating connector: MOLEX 10-11-2043 or equivalent Pins: MOLEX 08-50-0005 Suggested wire size: 22-24 AWG for all pins J3 Power Connector ------------------ Recommended mating connector: AMP 1-480424-0 or equivalent Pins: AMP 350078-4 Suggested wire size: 18 AWG (minimum) for all pins. J4 Ground Connector ------------------- 3/16-inch spade lug J4 is provided for grounding. System character- istics determine proper ground connection. Recommended mating connector: AMP 60972-2 or equivalent J7 Remote LED Connector ----------------------- Recommended mating connector: Dupont 69305-002 or equivalent Pins: Dupont 77138-001 Suggested wire size: 26-30 AWG for all pins SINGLE-ENDED Interface Electrical Characteristics ------------------------------------------------- Interface control and status signals are digital (open collector TTL) using industry-standard transmitters and receivers which provide a terminated, single-ended system. For active termination, the assigned signals are terminated with 110 ohms to +2.85V (nominal). For passive termination, the signals are terminated with 220 ohms to +5V (nominal) and 330 ohms to ground. All signals use open-collector or tri-state drivers. Single-ended drivers and receivers allow a maximum cable length of six meters (primarily for connection within a cabinet). Signal transmission requires a single 68-conductor (flat or twisted pair) cable. A characteristic impedance of 100 ( 10%) ohms is recommended. a. Input Characteristics Each of the drive's signal receivers has the following characteristics when measured at the interface connector. 1) Low-level input voltage (Signal true) = 0.0 VDC to 0.8 VDC 2) High-level input voltage (Signal false) = 2.0 VDC to 5.25 VDC 3) Low-level input current = -0.4 milliamps at 0.5 VDC 4) High-level input current = 0.1 milliamps at 2.7 VDC 5) Minimum input hysteresis = 0.2 VDC 6) Maximum input capacitance = 25 pF b. Output Characteristics Each of the drive's signal drivers has the following characteristics when measured at the interface connector. 1) Low-level input coltage (Signal assertion) = 0.0 VDC to 0.5 VDC 2) High-level input voltage (Signal negation) = 2.5 VDC to 5.25 VDC 3) Minimum driver output capability = 48 milliamps (sinking) at 0.5 VDC. c. Terminator Power (TERMPWR at Pins 33,34,35, and 36) Terminator Power has the following requirements: V(TERM) = 4.25 VDC to 5.25 VDC 1500 milliamps minimum source drive capability, with 2.0 amp recommended current limiting (e.g., a fuse). The drive will have a terminator power bus load of 1.0-milliamp, maximum (except for the purposes of providing power to an internal terminator). The drive provides keyed connectors to prevent accidental grounding or misconnection of terminator power. DIFFERENTIAL Interface Electrical Characteristics ------------------------------------------------- Differential interface signals consist of two signal lines which are denoted +SIGNAL and -SIGNAL. A signal is defined as true when the +SIGNAL is more positive than the -SIGNAL. A signal is defined as false when the -SIGNAL is more positive than the +SIGNAL. Differential drivers and receivers allow a maximum cable length of 25 meters. Signal transmission requires a single 68-conductor cable. A characteristic impedance of 100 ( 10%) ohms is recommended for un- shielded flat or twisted pair ribbon cable. A minimum conductor size of 28 AWG should be employed to minimize noise effects and ensure proper distribution of optional terminator power. A stub length of no more than 0.2 meters is allowed off the main-line interconnection within any connected equipment. a. Input Characteristics Each of the drive's signal receivers has the following characteristics when measured at the interface connector. I (input current on either input) = 2.0 milliamps, maximum Note: These characteristics include both receivers and passive drivers. This requirement is met with the input voltage varying between -7V and +12V, with power either on or off, and with hysteresis equaling 35 millivolts, minimum. b. Output Characteristics Each driven signal has the following characteristics when measured at the interface connector. VOL (low-level output voltage) = 1.7V maximum at IOL where IOL = 55 milliamps VOH (high-level output voltage) = 2.7V maximum at IOH where IOH = -55 milliamps VOD (differential voltage) = 1.0V minimum, with common-mode voltage ranges from -7 to +12 VOL and VOH are measured between the output terminal and the SCSI device's logic ground reference. c. Terminator Power (TERMPWR at Pins 33, 34, 35, and 36) Terminator Power has the following requirements: V(TERM) = 4.0 VDC to 5.25 VDC 1000 milliamps minimum source drive capability, with 1.0 amp recommended current limiting (e.g., a fuse). 1.0-milliamp maximum bus loading (except for the purposes of providing power to an internal terminator). The drive provides keyed connectors to prevent accidental grounding or misconnection of terminator power. Adjustments and Maintenance --------------------------- The 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 drive, resulting in an MTTR of less than 15 minutes. Data Transfers -------------- The drives are capable of transferring data up to 20 MBytes/sec in synchronous mode and 5 MBytes/sec in asynchronous mode. ********************************************************************** F E A T U R E S ********************************************************************** MICROPL. 2112WD/2112WS PRODUCT DESCRIPTION 135863 REV. A The single-ended and differential interface drive is compatible with the "ANSI CCS" and "SCSI-2" versions of the industry-standard Small Computer System Interface (SCSI) specification. Media Defects ------------- Media defects are physical characteristics of the media which result in repetitive read errors when a functional drive is operated within specified operating conditions. At the time of manufacture, a media test system evaluates every drive and identifies each media defect location. The defective areas are identified by head address (HD), cylinder address (CYL), and number of bytes from Index (BFI). The list of manufacturer-found defects is stored on the drive in a reserved, write-protected area accessible by the SCSI controller. This list is known as the MDL (Manufacturers Defect List) or PList (Primary Defect List). A printed listing of the defects is also shipped with each drive. The entries it contains can be mapped out (reassigned) automatically at format time by appropriate format control parameter bits. Seek Time --------- ----------------------------------+--------+ 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 | ----------------------------------+--------+ Internal Data Rate ------------------ 24 to 40 MHz Sector Size = Variable; programmable up to 4096 bytes. Specific Features of the Drives ------------------------------- 2112WS Drive - Industry-standard 68-pin, single-ended interface connection. - 13.5 Watts (46.1 Btu/hr) typical power dissipation. - Industry-standard mounting. - Active termination for improved bus termination/compatibility. 2112WD Drive - Industry-standard 68-pin, differential interface connection. - 15.5 Watts (52.9 Btu/hr) typical power dissipation. - Small increase in power consumption due to use if differential transceivers. - Protected against accidental misconnection by standard DIFFSENS signal. - Industry-standard mounting. - Schematically identical to the Single-Ended models except for termination, differential drivers/receivers, and SCSI Interface Connector pin assignments. - Uses the same SCSI control firmware for identical command and feature set to Single-Ended models. - Differential mechanics identical to Single-Ended.