SCSI Peripheral Host Adapter, Technical Data
   For HP 9000 Series 300 DIO-I Computers Product Number 98658A
The Small Computer System Interface (SCSI) is a widely accepted ANSI
standard for connecting host computers to peripherals. SCSI peripherals
available in the market today include floppy and Winchester disks,
cartridge and reel-to-reel tape drives, CD-ROM, WORM drives, helical
scanners, and a wide range of other peripherals. The HP 98658A can
support 7 devices on one interface although performance and cable
restrictions will apply.
   The HP 98658A host adapter provides a standard 8-bit SCSI bus for
HP 9000 Series 300 DIO-I* systems and is capable of performing 16-bit
DMA transfers. When connected with the 7957S, 7958S or 7959S SCSI 5.25"
disks from Disc Memory Division, it provides a high performance
solution for direct access storage. By itself, the 98658A provides the
flexibility of an industry standard and allows connection to compatible
peripherals.
   Note:  HP 9000 Models 310 and 320 are not supported.

Features
o Industry-standard interface
o Fully ANSI X3T9.131-1986 compliant
-  Support of bus arbitration
-  Full parity across the interface
-  Single-ended transceivers
-  Disconnect/reconnect
o High-speed throughput:
-  asynchronous or synchronous mode
-  16-bit DMA transfers
   Note:  System level performance is application dependent and may not
reflect the higher I/O rate achievable with SCSI.
o Connects up to 7 devices per adapter
-  1-meter cable ships with the adapter card
-  cable uses Alt 2 male connectors on each end
o Up to 6 meters connectivity distance
o Compatible with HP's 7957S, 7958S, and 7959S disks
o Support on HP-UX only, refer to HP 9000 Series 300 Configuration
  Guide, P/N 5951-6796, for supported configurations.
o Customer installable

Functional Specifications
Software
   The SCSI drivers provided in the HP-UX kernel implement a subset of
the Common Command Set outlined in the ANSI publication X3T9.2/85-52,
Rev4B. Supported commands and messages include:
   Commands Supported      HEX
      Test Unit Ready      00
      Request Sense        03
      Format Unit          04
      Inquire              12
      Mode Sense           1A
      Read Capacity        25
      Read                 28
      Write                2A
   Messages Used           HEX
      Command Complete     00
      Save Pointer         02
      Restore Data         03
      Pointer              04
      Disconnect           06
      Abort                07
      Message Reject       08
      No Operation         80-OFF

Ordering Information
   Software Reference Manuals
      98658-90001 DIO-I SCSI Adapter Installation Manual
      98265-90010 HP 9000 Series 300 SCSI Technical Reference Manual
      98577-90010 HP-UX Driver Development Guide
      97005-90000 HP 9000 Series 300 Peripheral Installation Guide
   Hardware
   The HP 98658A includes:
      98658-66501 DIO-I SCSI Adapter
      98658-90001 DIO-I SCSI Adapter Installation Manual
      1252-2297 1 SCSI terminator
      8120-5158 1-meter shielded twisted-pair cable with two 50-pin Alt
         2 connectors
   Note:  Cable length may not exceed 6 meters in a daisy-chain
configuration. For cable extension, female to male cables are available
through Direct Marketing Division.
   HP 98658A Option:
      001 Adds self-test hood connector (5061-6565)

Warranties and Disclaimers
Standard HP 90-day warranty with purchase of the product.
   HP fully supports SCSI for use with HP peripherals. Use of the SCSI
adapter with non-HP peripherals is at the users own risk and is not
HP supportable. Hardware and/or software may require modification for
system/peripheral compatibility. Upon modification of the software,
HP waives all responsibility for proper operation including transaction
accuracy and data integrity. Modification of software should only be
taken on by users experienced with HP-UX drivers and SCSI
implementations.
   HP specifically disclaims the implied warranties of merchantability
and fitness for a particular purpose. In addition, HP specifically
disclaims all responsibility for the operation of the SCSI interface
software with non-HP products, and for results or data loss in
connection with use of the software.

Power Requirements
   Input Voltages:
      +5 volts:  4.78 to 5.25
      +12 volts:  11.5 to 12.7
      -12 volts:  -11.5 to -12.7
   Consumption:  5.3 watts maximum
   Termpower:  0.4 amps at 5 volts for external termination
   Environmental Range
   Operating Temperature:  0 degrees C to +55 degrees C (+32 degrees F
      to +131 degrees F)
   Storage Temperature:  -40 degrees C to +70 degrees C (-40 degrees F
      to +158 degrees F)
   Relative Humidity:  15% to 95% at 40 degrees C (104 degrees F)
      noncondensing
   MTTR:  Less than one hour for failure isolation and card replacement
   Dimensions
      Height:  15.8 cm (6.25 in)
      Width:  19.7 cm (7.75 in)
      Thickness:  3.30 cm (1.31 in)
      Net Weight:  0.31 kg (0.68 lbs)

Sister Products
From Disk Memory Division:
   7957S  107 Mbytes SCSI Disk
   7958S  161 Mbytes SCSI Disk
   7959S  323 Mbytes SCSI Disk
   From Fort Collins Division:
      98242A 4-Slot DIO-I Backplane-converts two DIO-II slots to two
          pairs of DIO-I slots.
      98242B 2-Slot DIO-I Backplane-converts one DIO-II slot to one
          pair of DIO-I slots.
   Note:  See HP 9000 Series 300 Price Guide, part number 5951-6796.

From HP Networking Communications Specifications Guide,
   5091-3821E, 9205, p 088
Associated files: none
SCSI Peripheral Host Adapter, Technical Data