2 1 1 2 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/FAST Precompensation Cache/Buffer 512 KB Landing Zone Data transfer rate MB/S int Bytes/Sector 512 10.000 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 13.5 W Shock g 5 | 60 seek 15.0 W Rotation RPM 5400 read/write 15.7 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. 2112D TECHNICAL MANUAL 135812 REV. A Differential Interface / Device Electronics Board 135662 +---------------------------------------------------------+ | +W1 |XX | J2 mounted ++ |XX | on solder W2++J2 |XX ++ side ++|| |XX ++ +W3 LED Option ++ |XX J1 |++++ W4+ |XX |+J9 Remote LED ID0+-+ ++ |XX | ID1| | |XX | ID2| | |XX | PT1| | |XX | WP1| | |XX | SP0| | |XX | SP1+-+ | 1 | | | | | +-------+ |XX J3 | +++++++++ |XX Power +---------------------------------------------------------+ 1 Connector J2 (detail) --------------------- Pin 1 Slave Sync; 2 Not Connected; 3 Master Sync; 4 Ground; ++-+-+------------------------- || +-J4 Frame Ground Connector || || +----------+ || | ++++++++ J2 ||++-+1+2+3+4-+------------- ||| o o o o o o o o o o o o ||| o o o o o o o o o o o ||+---------J1----------- || +----------------- |+----+ +--------------------- ********************************************************************** J U M P E R S ********************************************************************** MICROPL. 2112D TECHNICAL MANUAL 135812 REV. A Jumper Setting ============== SCSI ID ------- +----------+-----------------------+ | SCSI ID | Jumpers | | | ID2 | ID1 | ID0 | +----------+-------+-------+-------+ | 0 | OPEN | OPEN | OPEN | | 1 | OPEN | OPEN | CLOSED| | 2 | OPEN | CLOSED| OPEN | | 3 | OPEN | CLOSED| CLOSED| | 4 | CLOSED| OPEN | OPEN | | 5 | CLOSED| OPEN | CLOSED| | 6 | CLOSED| CLOSED| OPEN | | 7 | CLOSED| CLOSED| CLOSED| (default) +----------+-------+-------+-------+ Up to eigth devices (the host and seven targets) can be attached to the SCSI Bus. The 2112D has three ID jumpers ID0, ID1, and ID2. The jumpers are used to assign one of eight SCSI ID bits (0-7) to the drive. In multiple-device systems, each drive must have its own unique ID. Interface Termination --------------------- The 135662 differential interface board does not provide termination. The system should provide SCSI bus termination. EXTERNAL terminator only. The interface terminator provides proper termination for the inter- face lines and must be installed on the last device on the interface. For the differential drives, Micropolis recommends the use of an IN LINE TERMINATOR. The IN LINE TERMINATOR may be installed between the drive connector and the ribbon cable (Option 1), or the IN LINE TERMINATOR may be installed in the last plug on the ribbon cable (Option 2) . Option 1 -------- +-----------------------------------+ IN LINE | | TERMINATOR | 2112D +---+ ++-+ | | XX<- +--++-+<- +---+ To Host +-------------------------------+ J1 +--++-+ +-+-+ ++ |Cable Option 2 -------- ++ +-----------------------------------+ IN LINE ---+--++-+<-+---+ | | TERMINATOR +--++-+ +-+-+ | 2112D +---+ ++ | | | XX<- +---+ +-------------------------------+ J1 +-+-+ | To +------------------+ Host W1/W2 Spindle Sync Termination ------------------------------- W1/W2 CLOSED Spindle Sync signal is terminated. (default) OPEN Spindle Sync is not terminated. When this option is to be implemented, the jumpers are removed from all drives except the last drive on the cable. W3 Remote LED Option --------------------- W3 CLOSED LED on Device Electronics board is enabled. (default) OPEN LED (user supplied) at J9 is enabled. W4 +5V to Bus Option --------------------- W4 CLOSED Drive sources TERMPWR. (default) OPEN Host system provides TERMPWR. SP0/SP1 Spindle Control Option ------------------------------- SP0 CLOSED SP1 OPEN Spindle motor starts when START UNIT command is received. OPEN Spindle motor starts at power-on. (default) SP0/SP1 Spindle Delay Option ----------------------------- SP1 CLOSED SP0 OPEN Spindle start-up is delayed based on SCSI ID (12 seconds per ID). OPEN Spindle start-up delay is disabled. (default) WP1 Write Protect Option ------------------------- WP1 CLOSED Drive is write protected. OPEN Drive is not write protected. (default) PT1 Bus Parity Check Option ---------------------------- PT1 CLOSED Drive neither generates nor detects parity. OPEN Drive generates parity and has parity detection enabled. (default) 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. 2112S/D/2108S/2105S TECHNICAL MANUAL 135812 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. No matter what mounting orientation is used, Micropolis specifies that the maximum HDA casting temperature not exceed 60*C (140*F). If the HDA casting temperature measurement cannot be made, the ambient air temperature around the drive must be kept at or below 50*C (122*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 ---------------------- Up to seven drives may be connected to a single host controller/ formatter. Control signals at J1 are transmitted via standard, daisy-chain interconnection. Data signals at J2 are transmitted via radially connected data-transfer lines. 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: 3M Scotchflex 3365/50 or equivalent Mating connector: 3M P/N 3425-3000 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 Differential Terminator ----------------------- Suggested Terminator: Methode DM 103-01-0 or equivalent 135692 SINGLE-ENDED Interface Electrical Characteristics -------------------------------------------------------- Interface control and status signals are digital (open collector TTL) using industry-standard transmitters and receivers. The assigned signals are terminated with 220 ohms to +5V (nominal) and 330 ohms to ground at each end of the cable. 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 50-conductor (flat or twisted pair) cable. A characteristic impedance of 100 ( 10%) ohms is recommended. a. Input Characteristics 1) Signal true = 0.0 VDC to 0.8 VDC 2) Maximum total input load = -0.4 milliamps at 0.5 VDC 3) Signal false = 2.0 VDC to 5.25 VDC 4) Minimum input hysteresis = 0.2 VDC b. Output Characteristics Each driven signal has the following characteristics when measured at the interface connector. 1) Signal assertion = 0.0 VDC to 0.5 VDC 2) Minimum driver output capability = 48 milliamps (sinking) at 0.5 VDC. 3) Signal negation = 2.5 VDC to 5.25 VDC c. Terminator Power (TERMPWR at Pin 26) Terminator Power has the following requirements: V(TERM) = 4.25 VDC to 5.25 VDC 800 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. 135792 SINGLE-ENDED Interface Electrical Characteristics -------------------------------------------------------- Interface control and status signals are digital (open collector TTL) using industry-standard transmitters and receivers. For active termination, the assigned signals are terminated with 110 ohms to +2.85V (nominal). For passive termination, the assigned 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 50-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 Pin 26) Terminator Power has the following requirements: V(TERM) = 4.25 VDC to 5.25 VDC 800 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. 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 50-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 25 and 26) Terminator Power has the following requirements: V(TERM) = 4.0 VDC to 5.25 VDC 600 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. ********************************************************************** F E A T U R E S ********************************************************************** MICROPL. 2112S/D/2108S/2105S TECHNICAL MANUAL 135812 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 | ----------------------------------+--------+ Preventive Maintenance ---------------------- No preventive maintenance is required during normal use. Corrective Maintenance ---------------------- There are no field-replaceable components within the sealed area; therefore, clean-area integrity MUST NOT be violated. The Micropolis warranty will be invalidated if any of the screws in the Head/Disk Assembly are removed. Field-Replaceable Parts ----------------------- An ID is attached to the drive HDA casting. It indicates the model number, part number (Top Assembly number), and serial number of the drive. These numbers should be referenced when ordering the field- replaceable parts. Caution: DO NOT remove any of the screws securing the drive's top cover (Cover Assembly). Internal Data Rate ------------------ 24 to 40 MHz Sector Size = Variable; programmable up to 4096 bytes.