
DISTRIBUTED PROCESSING TECHNOLOGY

PM2124, PM2124W, PM2124-MAC, PM2124W-MAC

  Data bus:               32-bit PCI

  Size:                   Three-quarter length, full-height card

  Hard drive supported:   Up to seven SCSI-2 or Fast SCSI-2 devices
                          (PM2124/PM2124-MAC)

                          Up to fifteen Wide SCSI-2 devices
                          (PM2124W/PM2124W-MAC)

  Floppy drives           None
  supported:

[Image]

                    CONNECTIONS (CM4000 CACHING MODULE)

                    Function                             Location

  Fault LED (red)                                          DS1

  ECC enabled LED (green)                                  DS2

  Proprietary CM4000 connector - caching board              J1
  to controller

  Proprietary CM4000 connector - caching board              J2
  to controller

  Note: Proprietary connectors J1 and J2 are on the reverse side of the
  board.

                         CONNECTIONS (CONTROLLER)

                    Function                             Location

  50/68-pin SCSI connector - external                      J11

  Proprietary CM4000 connector - controller to              P1
  caching board

  Proprietary CM4000 connector - controller to              P2
  caching board

  3-pin connector - factory test LED                        P4

  4-pin connector - drive active LED                        P6

  Proprietary DM4000 (disk array module)                    P5
  connector

  Proprietary DM4000 (disk array module)                    P7
  connector

  50/68-pin SCSI connector - internal                      P10

  LED - adapter busy                                       LED1

  LED - computer bus transfer to adapter                   LED2

  LED - computer bus transfer from adapter                 LED3

  LED - cache hit                                          LED4

  LED - disk read/ahead active                             LED5

  LED - disk read                                          LED6

  LED - disk write                                         LED7

  LED - adapter reset                                      LED8

  LED - interrupt to computer pending                      LED9

  LED - DRQ to computer asserted                          LED10

  Note: 50-pin ports are on models PM2124 and PM2124-MAC. 68-pin ports
  are on the PM2124W and PM2124W-MAC.

                     CACHING MODULE DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB         (1) 256K x       None           None           None
                    36

     1MB           None         (1) 256K x       None           None
                                   36

     1MB           None           None         (1) 256K x       None
                                                  36

     1MB           None           None           None         (1) 256K x
                                                                 36

     2MB         (1) 256K x     (1) 256K x       None           None
                    36             36

                      DRAM CONFIGURATION (CONTINUED)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     2MB           None         (1) 256K x     (1) 256K x       None
                                   36             36

     2MB           None           None         (1) 256K x     (1) 256K x
                                                  36             36

     3MB         (1) 256K x     (1) 256K x     (1) 256K x       None
                    36             36             36

     3MB           None         (1) 256K x     (1) 256K x     (1) 256K x
                                   36             36             36

     3MB         (1) 256K x       None         (1) 256K x     (1) 256K x
                    36                            36             36

     3MB         (1) 256K x     (1) 256K x       None         (1) 256K x
                    36             36                            36

     4MB         (1) 256K x     (1) 256K x     (1) 256K x     (1) 256K x
                    36             36             36             36

     4MB        (1) 1M x 36       None           None           None

     4MB           None        (1) 1M x 36       None           None

     4MB           None           None        (1) 1M x 36       None

     4MB           None           None           None        (1) 1M x 36

     8MB        (1) 1M x 36    (1) 1M x 36       None           None

     8MB           None        (1) 1M x 36    (1) 1M x 36       None

     8MB           None           None        (1) 1M x 36    (1) 1M x 36

     12MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36       None

     12MB          None        (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     12MB       (1) 1M x 36       None        (1) 1M x 36    (1) 1M x 36

     12MB       (1) 1M x 36    (1) 1M x 36       None        (1) 1M x 36

     16MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     16MB       (1) 4M x 36       None           None           None

     16MB          None        (1) 4M x 36       None           None

     16MB          None           None        (1) 4M x 36       None

     16MB          None           None           None        (1) 4M x 36

     32MB       (1) 4M x 36    (1) 4M x 36       None           None

     32MB          None        (1) 4M x 36    (1) 4M x 36       None

     32MB          None           None        (1) 4M x 36    (1) 4M x 36

     48MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36       None

     48MB          None        (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     48MB       (1) 4M x 36       None        (1) 4M x 36    (1) 4M x 36

     48MB       (1) 4M x 36    (1) 4M x 36       None        (1) 4M x 36

     64MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

  Notes: Although not shown above, 1MB, 4MB and 16MB SIMMs can be
  combined and DPT ECC SIMMs

  can replace parity SIMMs of 4MB or 16MB. Single sided SIMMs are
  preferred, but low-profile

  double sided 2MB and 8MB increments are supported.

