
XINETRON, INC.

XINET XI-286/LS2121

Processor                  80286
Processor Speed            12MHz
Chip Set                   C & T
Max. Onboard DRAM          4MB
SRAM Cache                 None
BIOS                       Unknown
Dimensions                 360mm x 340mm
I/O Options                Arcnet interfaces (BNC and twisted pair),
                           floppy drive interface,

                           IDE interface, parallel port, serial ports (2),
                           VGA port
NPU Options                80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  BNC network interface       C1       Serial port (COM2)          C7

  RJ11 network interface      C2       IDE interface               C9

  RJ11 network interface      C3       Floppy drive interface      C10

  VGA port                    C4       External battery            J30

  Parallel port               C5       Riser card                  R1

  Serial port (COM1)          C6

                        USER CONFIGURABLE SETTINGS

               Function                     Jumper           Position

       Factory configured - do not            J3              Unknown
       alter

       Factory configured - do not            J5              Unknown
       alter

      Monitor type select monochrome,        J8               Open
       EGA/VGA

       Monitor type select color              J8              Closed

       Factory configured - do not            J11             Unknown
       alter

      BIOS type select 27128                 J13              Open

       BIOS type select 27256                 J13             Closed

       Factory configured - do not            J99             Unknown
       alter

      Onboard terminator enabled            J109              Open

       Onboard terminator disabled           J109             Closed

       Factory configured - do not           J205             Unknown
       alter

      Floppy interface enabled              J306            pins 2 & 3
                                                              closed

       Floppy interface disabled             J306            pins 1 & 2
                                                              closed

       Factory configured - do not           J307             Unknown
       alter

       Factory configured - do not           J309             Unknown
       alter

       Factory configured - do not           J310             Unknown
       alter

       Factory configured - do not           J311             Unknown
       alter

      IDE interface enabled              J312 & J313        pins 2 & 3
                                                              closed

       IDE interface disabled             J312 & J313        pins 1 & 2
                                                              closed

  Note: If the system is on either end of a linear bus network segment,
  or used in a star network topology, the onboard terminator may be used
  instead of an external terminator.

                        ONBOARD VIDEO CONFIGURATION

                Function                       J201             J204

     Onboard video enabled                  pins 2 & 3       pins 2 & 3
                                              closed           closed

      Onboard video disabled                 pins 1 & 2       pins 1 & 2
                                              closed           closed

                         SERIAL PORT CONFIGURATION

       COM1             COM2          J303          J304         J305

       Enabled        Enabled      pins 2 & 3   pins 2 & 3    pins 2 & 3
                                     closed        closed       closed

        Enabled       Disabled      pins 2 & 3   pins 1 & 2    pins 2 & 3
                                     closed        closed       closed

       Disabled        Enabled      pins 1 & 2   pins 2 & 3    pins 2 & 3
                                     closed        closed       closed

       Disabled       Disabled      pins 1 & 2   pins 1 & 2    pins 1 & 2
                                     closed        closed       closed

                    PARALLEL PORT 1 (C3) CONFIGURATION

             LPT                      J301                   J302

             LPT 1             pins 1 & 2 closed      pins 2 & 3 closed

              LPT 2             pins 2 & 3 closed      pins 2 & 3 closed

              LPT 3             pins 2 & 3 closed      pins 1 & 2 closed

             Disabled           pins 1 & 2 closed      pins 1 & 2 closed

                            DRAM CONFIGURATION

    Size         J6           J7          J20        Bank 0      Bank 1

   512KB       Closed       Closed       Closed      (2) 256K     NONE
                                                       x 9

    1MB        Closed        Open        Closed      (2) 256K    (2) 256K
                                                       x 9         x 9

    2MB         Open         Open        Closed      (2) 1M x        NONE
                                                        9

    4MB        Closed       Closed        Open       (2) 1M x    (2) 1M x
                                                        9           9

                  ARCNET NETWORK INTERFACE CONFIGURATION

      Function         J101       J103     J105    J106    J107     J108

          BNC        Closed     Closed    pins     pins    N/A     N/A
       connection                          2 & 3   2 & 3

       Twisted pair   Closed     Closed    pins     pins    pins   pins 2
       (1st pair)                          1 & 2   1 & 2   2 & 3    & 3

       Twisted pair   Closed     Closed    pins     pins    pins   pins 1
       (2nd pair)                          1 & 2   1 & 2   1 & 2    & 2

        Disabled       Open       Open     N/A      N/A     N/A     N/A

                  ARCNET INTERRUPT REQUEST CONFIGURATION

           Setting                                J101

             IRQ 2                        pins 9 & 10 closed

              IRQ 3                        pins 7 & 8 closed

              IRQ 4                        pins 5 & 6 closed

              IRQ 5                        pins 3 & 4 closed

              IRQ 7                        pins 1 & 2 closed

                                     NODE ADDRESS

  Node   SW101/1  SW101/2   SW101/3   SW101/4   SW101/5   SW101/6   SW101/7   SW101/8

   0       -         -         -         -         -        -         -         -

   1       On       On        On        On        On        On        On       Off

   2       On       On        On        On        On        On       Off        On

   3       On       On        On        On        On        On       Off       Off

   4       On       On        On        On        On       Off        On        On

  251     Off       Off       Off       Off       Off       On       Off       Off

  252     Off       Off       Off       Off       Off      Off        On        On

  253     Off       Off       Off       Off       Off      Off        On       Off

  254     Off       Off       Off       Off       Off      Off       Off        On

  255     Off       Off       Off       Off       Off      Off       Off       Off

  Notes: Node address 0 is used for messaging between nodes and must not be used.

  A total of 255 node address settings are available. The switches are a binary
  representation of the decimal node addresses. Switch 8 is the Least Significant Bit
  and switch 1 is the Most Significant Bit. The switches have the following decimal
  values: switch 1=128, 2=64, 3=32, 4=16, 5=8, 6=4, 7=2, 8=1. Turn Off the switches
  and add the values of the Off switches to obtain the correct node address. (On=0,
  Off=1)

                     RESPONSE/RECONFIGURATION TIMEOUTS

    Response    Idle Time     Reconfig.     J102/pins 1 &   J102/pins 3 &
     Time                       Time             2                4

    1130 (m)     1237 (m)      1680ms          Closed          Closed

    563 (m)      624 (m)       1680ms          Closed           Open

    285 (m)      316 (m)       1680ms           Open           Closed

     78 (m)       86 (m)        840ms           Open            Open

                   BASE MEMORY ADDRESS AND BOOT ROM ADDRESS

  Base Address     Boot ROM    SW102/1   SW102/2   SW102/3   SW102/4   SW102/5
                   Address

  C0000-C07FFh   C2000-C3FFFh    On        On        On        On        On

  C0800-C0FFFh   C2000-C3FFFh    Off       On        On        On        On

  C1000-C17FFh   C2000-C3FFFh    On        Off       On        On        On

  C1800-C1FFFh   C2000-C3FFFh    Off       Off       On        On        On

  C4000-C47FFh   C6000-C7FFFh    On        On        Off       On        On

  C4800-C4FFFh   C6000-C7FFFh    Off       On        Off       On        On

  C5000-C57FFh   C6000-C7FFFh    On        Off       Off       On        On

  C5800-C5FFFh   C6000-C7FFFh    Off       Off       Off       On        On

  CC000-CC7FFh   CE000-CFFFFh    On        On        On        Off       On

  CC800-CCFFFh   CE000-CFFFFh    Off       On        On        Off       On

  CD000-CD7FFh   CE000-CFFFFh    On        Off       On        Off       On

  CD800-CDFFFh   CE000-CFFFFh    Off       Off       On        Off       On

  D0000-D07FFh   D2000-D3FFFh    On        On        Off       Off       On

  D0800-D0FFFh   D2000-D3FFFh    Off       On        Off       Off       On

  D1000-D17FFh   D2000-D3FFFh    On        Off       Off       Off       On

  D1800-D1FFFh   D2000-D3FFFh    Off       Off       Off       Off       On

  D4000-D47FFh   D6000-D7FFFh    On        On        On        On       Off

  D4800-D4FFFh   D6000-D7FFFh    Off       On        On        On       Off

  D5000-D57FFh   D6000-D7FFFh    On        Off       On        On       Off

  D5800 D5FFFh   D6000-D7FFFh    Off       Off       On        On       Off

  D8000-D87FFh   DA000-DBFFFh    On        On        Off       On       Off

  D8800-D8FFFh   DA000-DBFFFh    Off       On        Off       On       Off

  D9000-D97FFh   DA000-DBFFFh    On        Off       Off       On       Off

  D9800-D9FFFh   DA000-DBFFFh    Off       Off       Off       On       Off

  DC000-DC7FFh   DE000-DFFFFh    On        On        On        Off      Off

  DC800-DCFFFh   DE000-DFFFFh    Off       On        On        Off      Off

  DD000-DD7FFh   DE000-DFFFFh    On        Off       On        Off      Off

  DD800-DDFFFh   DE000-DFFFFh    Off       Off       On        Off      Off

  E0000-E07FFh   E2000-E3FFFh    On        On        Off       Off      Off

  E0800-E0FFFh   E2000-E3FFFh    Off       On        Off       Off      Off

  E1000-E17FFh   E2000-E3FFFh    On        Off       Off       Off      Off

  E1800-E1FFFh   E2000-E3FFFh    Off       Off       Off       Off      Off

       BASE MEMORY ADDRESS CONFIGURATION

  Address     SW102/6     SW102/7    SW102/8

  260-26Fh      Off         Off        Off

  290-29Fh      On          Off        Off

  2E0-2EFh      Off         On         Off

  2F0-2FFh      On          On         Off

  300-30Fh      Off         Off         On

  350-35Fh      On          Off         On

  380-38Fh      Off         On          On

  3E0-3EFh      On          On          On

