
SYSTRAN CORPORATION

SCRAMNET+ VME6U

NIC Type               Proprietary
Chipset                Systran Corporation
Maximum Onboard Memory 8MB DRAM
I/O Options            Bypass connector
Network Transfer Rate  150Mbps
Data Bus               VME double
Topology               Linear Bus/Ring
Wire Type              RG-58A/U 50ohm coaxial

                       Fiber optic cable
Boot ROM               Not available

[Image]

                                CONNECTIONS

         Function             Label           Function            Label

  Header for cabinet            J5      RG-58A/U 50ohm             W1A
  connection                            coaxial receive
                                        connector 1

  Auxiliary connector (see      J7      Fiber optic ST             W1B
  pinout below)                         receive connector 1

  Bypass connector             J301     RG-58A/U 50ohm             W2A
                                        coaxial receive
                                        connector 2

  Daughterboard header         J302     Fiber optic ST             W2B
                                        receive connector 2

                            CONNECTIONS (CONT)

         Function           Label            Function             Label

  RG-58A/U 50ohm coaxial     W3A       Fiber optic ST              W4B
  transmit connector 1                 transmit connector 2

  Fiber optic ST             W3B       Header to main board        W5A
  transmit connector 1                 J302

  RG-58A/U 50ohm coaxial     W4A       Header to main board        W5B
  transmit connector 2                 J302

                                 J7 PINOUT

          Function             Pin             Function             Pin

  Ground                        1      Trigger 1 signal              3

  Trigger 1 and Trigger 2       2      Trigger 2 signal              4
  signal

                        USER CONFIGURABLE SETTINGS

                   Setting                      Label        Position

     Card is not software compatible with       J2          Pins 1 & 3
      ScramNET Classic cards                                  closed

      Card is software compatible with           J2          Pins 2 & 4
      ScramNET Classic cards                                  closed

     SIMM memory disabled, on-board memory      J3          Pins 1 & 3
      enabled                                                 closed

      SIMM memory enabled, on-board memory       J3          Pins 2 & 4
      disabled                                                closed

     Variable length packets disabled           J4          Pins 1 & 3
                                                              closed

      Variable length packets enabled            J4          Pins 2 & 4
                                                              closed

     Chassis ground connected to signal         J6          Pins 2 & 4
      ground                                                  closed

      Chassis ground not connected to            J6          Pins 1 & 3
      signal ground                                           closed

     EEPROM write protect disabled             J303         Pins 2 & 4
                                                              closed

      EEPROM write protect enabled              J303         Pins 1 & 3
                                                              closed

     EEPROM read protect disabled              J304         Pins 2 & 4
                                                              closed

      EEPROM read protect enabled               J304         Pins 1 & 3
                                                              closed

                            DRAM CONFIGURATION

     Size          Bank 0        Bank 1         Bank 2         Bank 3

     128KB          None          None           None           None

     512KB       (1) 512K x       None           None           None
                     9

      1MB        (1) 512K x     (1) 512K x       None           None
                     9              9

      2MB        (1) 512K x     (1) 512K x     (1) 512K x   (1) 512K x 9
                     9              9              9

      2MB        (1) 2M x 9       None           None           None

      4MB        (1) 2M x 9    (1) 2M x 9        None           None

      8MB        (1) 2M x 9    (1) 2M x 9     (1) 2M x 9     (1) 2M x 9

            Note:The SIMMs are proprietary and must be ordered from
            Systran.

                      ADDRESSING RESOLUTION SELECTION

  Control/Status Registers           Memory                  S8

              16 bits               24 bits              Position 6

             16 bits               32 bits              Position 7

              24 bits               24 bits              Position A

              24 bits               32 bits              Position B

              32 bits               24 bits              Position E

              32 bits               32 bits              Position F

                 CONTROL/STATUS REGISTER ADDRESS SELECTION

  A total of 134,217,728 address settings are available. Switches S1
  through S7 set the hexadecimal memory address. SW1 is the Most
  Significant Nibble and switch SW7 is the Least Significant Nibble,
  though the bottom two bits of SW7 are always 0. The switches have the
  following decimal weight values: SW1=4,194,304, SW2=2,097,152,
  SW3=1,048,576, SW4=65,536, SW5=4,096, SW6=256, SW7=16. Set the
  switches, multiply the number on the switch by its weight value, add
  the values obtained for each switch, and round down to the nearest
  multiple of 64 to obtain the correct memory address.

                             DIAGNOSTIC LED(S)

     LED          Color         Status                Condition

    LED1          Green           On         Network connection is good

    LED1          Green          Off        Network connection is broken

    LED2          Green           On            Message is waiting in
                                                    transmit FIFO

    LED2          Green          Off          Message is not waiting in
                                                    transmit FIFO

    LED3          Green           On         Carrier signal is detected

    LED3          Green          Off            Carrier signal is not
                                                      detected

    LED4         Yellow           On          Error condition detected

    LED4         Yellow          Off        Error condition not detected

    LED5          Green           On          Message received from this
                                                        node

    LED5          Green          Off          Message not received from
                                                      this node

    LED6          Green           On        Message received from another
                                                        node

    LED6          Green          Off          Message not received from
                                                    another node

