C-NET (98) S-11, C-NET (98) S-12 (CONTEC) C bus bus master NIC (LAN board) equipped with 10BASE-2 / 5/10 connector. C-NET (98) S-12 with 3 jumper switches on the board, There are two in C-NET (98) S-11. power consumption  10BASE-5: +5 V = 320 mA, +12 V = 500 mA  10BASE-2: +5 V = 490 mA  10BASE-T: +5 V = 310 mA Operating temperature range: 0 to 50 °, operating humidity range: 20 to 80% (no condensation) ・ Three jumper switch JP1: Use of interrupt and external bus master  / Release settings  2 shorts on INIT side ■ Release interrupt and external bus master  NORMAL side 2 shorts ■ Use interrupt and external bus master            (Factory setting) Normally used with 2 shorts on NORMAL side.Because this board was attached If the system does not start up, short two INITs, Set values from [Board Settings] in the self-diagnosis program (DIAG) Change.After the change, be sure to reset the NORMAL side to 2 shorts. ・ Setting of switching of 3 jumper switches JP2: 10BASE-2 / 5 (Only present in C-NET (98) S-11) Set whether to use 10BASE-2 / 5 switching automatically or fixedly. When 10BASE-T is used, 10BASE-T takes precedence, The settings on this switch are invalid.  Automatic switching of 2 AUTO side short ■ 10BASE-2 / 5 (default setting)  Two AUI side short ■ Fixed 10BASE-5 Normally, use with AUTO. ※ I / O port address, interrupt level, external bus master is software  Set in the ware. I / O port address  n3D0h to n3DFh, n7D0h to n7DFh 32 bytes occupied (n = 0, 1, 2, 3, 4, 5, 6                      / Factory setting: n = 0) Interrupt level  Select one from INT 0, 1, 2, 3 (Factory setting: INT 1) External bus master  One of EXHRQ 1 and 2 (Factory setting: EXHRQ)