Teknor Industrial Computers VIPer807 Technical Reference Manual page 62

6.01.4 IDE JUMPER
IDE Controller jumper and its setting appear below:
• W10 IOCHRDY signal to IDE interface:
- Shorted: Enabled.
- Or open: Disabled: This is the initial setting.
For location and setting of jumper, refer to Section 3 of this manual.
Installing IDE, Floppy & SCSI Devices 6-3