Solution:

The following is for your reference: 1. PCL-848 just supports IEEE 488.1 standard, you'd better check your device supports 488.1, too. 2. Please remove memory management program from config.sys or autoexec.bat, such as EMM386, QEMM and so on. 3. Make sure I/O address and memory address of PCL-848 don't conflict with other devices. 4. Please adjust wait state ( slower ) to try again. 5. Check SW3 is at "A" position. 6. If you insert PCL-848 and network card on one system, please check the memory address of bootROM is different from PCL-848's