CentreCOM RE1000Plus (Allied Telesis) C bus NIC (LAN board).The board is Rev.Two revisions A and B exist.Rev.A (The end of the S / N on your board is RevAA) Three types of connectors of 10BASE-2 / 5 / T are also Rev.In B (the same RevBA) 10BASE-T connector only. Rev.In A, push button type between 10BASE-2 connector and 10BASE-5 connector There is a changeover switch.10BASE-5 with the switch popped up, When pressed down, 10BASE-2 is selected. Connect a cable to the 10BASE-T connector to switch to the 10BASE-2 / 5 switch Regardless of the state of, 10BASE-T is automatically selected. There is no switch on the board, and I / O base address and INT settings are Hardware configuration program (CFG1000.Do it using EXE). The factory setting is I / O base address = 00D0h, INT = 0.Operation of this board In order to do this, jump 200 h starting with one of the following I / O port addresses: The 32-byte I / O space needs to be free:   00D0h, 00D2h, 00D4h, 00D8h, 01A4h, 01A6h, 01A8h, 01DAh INT is selected from 0, 1, 2, and 5. For the PC-386M, the I / O port address of the image scanner is set at the factory In this case, 00D0h and 00D2h, so when using this board Shift the I / O port address on the main unit side.