I/O MINI II AT AST Part Number 202123-002 The I/O Mini II AT is a multifunction board for the IBM PC/AT and 100% compatibles, this board comes standard with , a serial port configurable as COM1: or COM2:, and a parallel port configurable as LPT1: or LPT2:. Optional upgrades include a second serial port and a game port. JUMPER SETTINGS Jumper positions E1 through E7 are three pin jumpers. E1-E6 control the signals sent to the serial ports, and for the most part should remain in the default position (on pins 1 & 2 to the left). In rare cases, you may want to force certain signals true, in which case the appropriate jumper would move to the right pair of pins (2 & 3). E1 - Move to 2 & 3 to force CTS true (Port One) E2 - Move to 2 & 3 to force DSR true (Port One) E3 - Move to 2 & 3 to force DCD true (Port One) E4 - Move to 2 & 3 to force CTS true (Second Port Option) E5 - Move to 2 & 3 to force DSR true (Second Port Option) E6 - Move to 2 & 3 to force DCD true (Second Port Option) Slot eight (closest to the power supply) in the IBM PC/AT is a non-standard slot. If the I/O Mini II is installed in this slot, you must move the jumper at E7 to right pair of pins (2 & 3). E7 - Move to 2 & 3 if installed in PC/AT slot 8 *E8 - Attach for serial COM1: (Primary Port) E9 - Attach for serial COM2: (Primary or Second Option) *E10 - Attach for parallel LPT1: E11 - Attach for parallel LPT2: E12 - Attach for game port option E14 - Attach for IRQ3 with COM2: (Second Port Option) E15 - Attach for IRQ3 with COM2: (Primary Port) *E16 - Attach for IRQ4 with COM1: (Primary Port) *E17 - Attach for IRQ7 with LPT1: E18 - Attach for IRQ5 with LPT2: * = Factory Default JUMPER LOCATIONS +---------------------------------+ | | +--- | +-+ | | | | *E1-E3 | | | *E4-E7 | | | * | | | * | | | * E8-E18 | | | | | | +-+ +---------------+ +----+ | +------------+ | |