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# TEKNOR INDUSTRIAL COMPUTERS, INC.
VIPER880
Device Single board computer
Type
Processor 80486SX/80486DX/80486DX2/80486DX4
Processor 50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set VLSI 82C486
Video Chip Chips and Technology
Set
Maximum 32MB
Onboard
Memory
Maximum 1MB
Video
Memory
Cache 128/512KB
BIOS AMI
Dimensions 181mm x 122mm
I/O Floppy drive interface, IDE interface, SCSI interface,
Options PS/2 mouse interface, parallel port, serial ports (2),
VGA port, PC/104 connectors (2)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| IDE interface | J1 | Chassis fan | J8 |
| | | power | |
|---------------------+----------+----------------+----------|
| Floppy drive | J2 | Power | J9 |
| interface | | connector | |
|---------------------+----------+----------------+----------|
| Multifunction | J3 | PS/2 mouse | J10 |
| connector | | interface | |
|---------------------+----------+----------------+----------|
| Serial port 2 | J4 | VGA port | J12 |
|---------------------+----------+----------------+----------|
| SCSI interface | J5 | Parallel port | J13 |
|---------------------+----------+----------------+----------|
| Flat panel | J6 | PC/104 | P1 |
| connector | | connector | |
|---------------------+----------+----------------+----------|
| Serial port 1 | J7 | PC/104 | P2 |
| | | connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+----------+--------------|
| » | Normal boot enabled | J11 | Open |
|---+------------------------------+----------+--------------|
| | Emergency boot enabled | J11 | Closed |
|---+------------------------------+----------+--------------|
| » | IOCHRDY signal to IDE | W1 | Open |
| | interface disabled | | |
|---+------------------------------+----------+--------------|
| | IOCHRDY signal to IDE | W1 | Closed |
| | interface enabled | | |
|---+------------------------------+----------+--------------|
| » | Watchdog timer enabled | W2 | Closed |
|---+------------------------------+----------+--------------|
| | Watchdog timer disabled | W2 | Open |
|---+------------------------------+----------+--------------|
| » | Power fail monitoring | W3 | Open |
| | disabled | | |
|---+------------------------------+----------+--------------|
| | Power fail monitoring | W3 | Closed |
| | enabled | | |
|---+------------------------------+----------+--------------|
| » | Flash disk write enabled | W4 | Closed |
|---+------------------------------+----------+--------------|
| | Flash disk write disabled | W4 | Open |
|---+------------------------------+----------+--------------|
| » | SCSI address select 340H | W5 | Open |
|---+------------------------------+----------+--------------|
| | SCSI address select140H | W5 | Closed |
|---+------------------------------+----------+--------------|
| » | Flash BIOS write enabled | W6 | Closed |
|---+------------------------------+----------+--------------|
| | Flash BIOS write disabled | W6 | Open |
|---+------------------------------+----------+--------------|
| » | Pixel clock polarity | W7 | Pins 1 & 2 |
| | positive | | closed |
|---+------------------------------+----------+--------------|
| | Pixel clock polarity | W7 | Pins 2 & 3 |
| | negative | | closed |
|---+------------------------------+----------+--------------|
| » | Battery type select internal | W10 | Pins 1 & 2 |
| | | | closed |
|---+------------------------------+----------+--------------|
| | Battery type select external | W10 | Pins 2 & 3 |
| | | | closed |
|---+------------------------------+----------+--------------|
| » | Power failure select | W13 | Pins 1 & 2 |
| | external power fail input to | | closed |
| | pin 6 on J9 | | |
|---+------------------------------+----------+--------------|
| | Power failure select | W13 | Pins 2 & 3 |
| | internal/external battery < | | closed |
| | 3v | | |
|---+------------------------------+----------+--------------|
| » | On board video enabled | W26/pins | Open |
| | | 1 & 2 | |
|---+------------------------------+----------+--------------|
| | On board video disabled | W26/pins | Closed |
| | | 1 & 2 | |
|---+------------------------------+----------+--------------|
| » | Factory configured – do not | W26/pins | Unidentified |
| | alter | 3 & 4 | |
|---+------------------------------+----------+--------------|
| » | Standard mode enabled | W26/pins | Open |
| | | 5 & 6 | |
|---+------------------------------+----------+--------------|
| | VT100 mode enabled | W26/pins | Closed |
| | | 5 & 6 | |
|---+------------------------------+----------+--------------|
| » | Serial normal mode enabled | W26/pins | Open |
| | | 7 & 8 | |
|---+------------------------------+----------+--------------|
| | Serial download mode enabled | W26/pins | Closed |
| | | 7 & 8 | |
|---+------------------------------+----------+--------------|
| » | PS/2 mouse disabled | W27 | Open |
|---+------------------------------+----------+--------------|
| | PS/2 mouse enabled | W27 | Closed |
|---+------------------------------+----------+--------------|
| » | Monitor type select color | W32 | Open |
|---+------------------------------+----------+--------------|
| | Monitor type select | W32 | Closed |
| | monochrome | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (1) 256K x 36 | None |
|------------------+--------------------+--------------------|
| 2MB | (1) 512K x 36 | None |
|------------------+--------------------+--------------------|
| 2MB | (1) 256K x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 3MB | (1) 512K x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (1) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 4MB | (1) 512K x 36 | (1) 512K x 36 |
|------------------+--------------------+--------------------|
| 5MB | (1) 1M x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 6MB | (1) 1M x 36 | (1) 512K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (1) 2M x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 9MB | (1) 2M x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 10MB | (1) 2M x 36 | (1) 512K x 36 |
|------------------+--------------------+--------------------|
| 12MB | (1) 2M x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (1) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 |
|------------------+--------------------+--------------------|
| 17MB | (1) 4M x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 18MB | (1) 4M x 36 | (1) 512K x 36 |
|------------------+--------------------+--------------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (1) 4M x 36 | (1) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: The location of the cache is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Note: The location of the video memory is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | W29 |
|--------------------------+---------------------------------|
| 50iMHz | Pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 66iMHz | Pins 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 75iMHz | Pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 100iMHz | Pins 3 & 4, 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | W22 | W24 | W25 |
|-----------+-------------------+--------+-------------------|
| 80486SX | Pins 1 & 2 closed | Open | Open |
|-----------+-------------------+--------+-------------------|
| 80486DX | Pins 2 & 3 closed | Closed | Pins 1 & 2 closed |
|-----------+-------------------+--------+-------------------|
| 80486DX2 | Pins 2 & 3 closed | Closed | Pins 1 & 2 closed |
|-----------+-------------------+--------+-------------------|
| 80486DX4 | Pins 2 & 3 closed | Closed | Pins 1 & 2 closed |
|-----------+-------------------+--------+-------------------|
| ODP486 | Pins 2 & 3 closed | Closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUSCLK SIGNAL SELECTION |
|------------------------------------------------------------|
| Speed | W21 |
|----------------------------+-------------------------------|
| 16MHz | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 25MHz | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 33MHz | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | W28 | W31 |
|------------------+--------------------+--------------------|
| » | None | Open | Open |
|---+--------------+--------------------+--------------------|
| | 1 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | 3 | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | W30 |
|----------------------------+-------------------------------|
| | None | Open |
|-----+----------------------+-------------------------------|
| | IRQ5 | Pins 1 & 2 closed |
|-----+----------------------+-------------------------------|
| » | IRQ7 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 SELECTION |
|------------------------------------------------------------|
| Setting | W17 | W18 | W19 | W20 |
|------------+-----------+-----------+-----------+-----------|
| » | RS-232 | Pins 1 & | Pins 1 & | Pins 1 & | Pins 1 & |
| | | 2 closed | 2 closed | 2 closed | 2 closed |
|---+--------+-----------+-----------+-----------+-----------|
| | RS-422 | Pins 2 & | Pins 2 & | Pins 2 & | Pins 2 & |
| | | 3 closed | 3 closed | 3 closed | 3 closed |
|---+--------+-----------+-----------+-----------+-----------|
| | RS-485 | Pins 2 & | Pins 2 & | Pins 2 & | Pins 2 & |
| | | 3 closed | 3 closed | 3 closed | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT LOOPBACK SELECTION |
|------------------------------------------------------------|
| Setting | W11 | W12 |
|------------------------+-----------------+-----------------|
| » | Normal | Open | Open |
|---+--------------------+-----------------+-----------------|
| | Loopback | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | W23 |
|----------------------------+-------------------------------|
| » | 190H | Pins 1 & 2, 3 & 4 closed |
|---+------------------------+-------------------------------|
| | 290H | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | 390H | Pins 3 & 4 closed |
|---+------------------------+-------------------------------|
| | 390H | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SCSI DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | W14 | W15 |
|------------------+--------------------+--------------------|
| » | None | Open | Open |
|---+--------------+--------------------+--------------------|
| | 0 | Pins 1 & 2 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | 5 | Pins 2 & 3 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SCSI INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | W16 |
|----------------------------+-------------------------------|
| | 10 | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | 11 | Pins 2 & 3 closed |
|---+------------------------+-------------------------------|
| » | None | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EDOUT SELECTION |
|------------------------------------------------------------|
| Setting | W8 |
|---------------------------------+--------------------------|
| EDOUT left to software | Open |
|---------------------------------+--------------------------|
| EDOUT to pin 29 & ground to pin | Pins 1 & 3, 2 & 4 closed |
| 17 | |
|---------------------------------+--------------------------|
| EDOUT to pin 17 & ground to pin | Pins 1 & 2, 3 & 4 closed |
| 29 | |
|------------------------------------------------------------|
| Note: The above listed pins are located on J2. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HDOUT SELECTION |
|------------------------------------------------------------|
| Setting | W9 |
|---------------------------------+--------------------------|
| HDOUT left to software | Open |
|---------------------------------+--------------------------|
| HDOUT to pin 33 & ground to pin | Pins 1 & 3, 2 & 4 closed |
| 27 | |
|---------------------------------+--------------------------|
| HDOUT to pin 27 & ground to pin | Pins 1 & 2, 3 & 4 closed |
| 33 | |
|------------------------------------------------------------|
| Note: The above listed pins are located on J2. |
+------------------------------------------------------------+