ITT CORPORATION
XTRA/PROFESSIONAL SERIES 400
| 
 Processor  | 
 80286  | 
| 
 Processor Speed  | 
 6/10MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Max. Onboard DRAM  | 
 1MB (exact location unidentified)  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 355mm x 305mm  | 
| 
 I/O Options  | 
 Floppy drive interface  | 
| 
 NPU Options  | 
 80287  | 
| 
 CONNECTIONS  | |
| 
 Purpose  | 
 Location  | 
| 
 Floppy drive interface  | 
 CN1  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Factory configured - do not alter  | 
 JP6  | 
 pins 2 & 3 closed  | 
| 
 »  | 
 Floppy drive interface enabled  | 
 JP7  | 
 pins 1 & 2 closed  | 
| 
 Floppy drive interface disabled  | 
 JP7  | 
 pins 2 & 3 closed  | |
| 
 »  | 
 Floppy drive address select 37X  | 
 JP8  | 
 pins 1 & 2 closed  | 
| 
 Floppy drive address select 3FX  | 
 JP8  | 
 pins 2 & 3 closed  | |
| 
 »  | 
 Hard drive controller installed  | 
 JP9  | 
 pins 1 & 2 closed  | 
| 
 Hard drive controller not installed  | 
 JP9  | 
 pins 2 & 3 closed  | |
| 
 »  | 
 Power on wait state select 1 wait states  | 
 JP10  | 
 pins 1 & 2 closed  | 
| 
 Power on wait state select 0 wait state  | 
 JP10  | 
 pins 2 & 3 closed  | |
| 
 DRAM CONFIGURATION  | 
| 
 Size  | 
| 
 256KB  | 
| 
 512KB  | 
| 
 640KB  | 
| 
 1MB  | 
| 
 Note:The chip size and location of the memory is unidentified.  | 
| 
 DRAM JUMPER CONFIGURATION  | ||
| 
 Size  | 
 JP4  | 
 JP5  | 
| 
 256KB  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 512KB  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 640KB  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 1MB  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
| 
 CPU POWER UP SPEED CONFIGURATION  | |
| 
 Speed  | 
 JP3  | 
| 
 6MHz  | 
 pins 2 & 3 closed  | 
| 
 10MHz  | 
 pins 1 & 2 closed  | 
| 
 BIOS CONFIGURATION  | ||
| 
 Type  | 
 JP1  | 
 JP2  | 
| 
 EPROM  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 Masked ROM  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  |