DATA TECHNOLOGY CORPORATION DTC2278E (400518-89A) Data Bus 32-bit VESA Local Bus Card Size Three-quarter length, half-height card Hard Drives supported Four IDE (AT) or EIDE drives Floppy drives supported Two 360KB, 720KB, 1.2MB, or 1.44MB drives [Image] CONNECTIONS Function Location Function Location 10-pin serial port 2 - J2 40-pin secondary J6 internal IDE(AT) connector 9-pin serial port 1 - J3 40-pin primary IDE(AT) J7 external connector 16-pin game port J4 4-pin connector - J8 drive active LED 34-pin cable connector J5 25-pin parallel port - J9 - floppy drive external USER CONFIGURABLE SETTINGS Function Label Position » Game port enabled W14 Closed Game port disabled W14 Open SERIAL PORT 1 ADDRESS SELECTION COM W5 W6 » COM1 (3F8h) Pins 1 & 2 closed Pins 2 & 3 closed COM3 (3E8h) Pins 2 & 3 closed Pins 1 & 2 closed Disabled Pins 1 & 2 closed Pins 1 & 2 closed Notes: COM1 & COM3 are automatically configured to IRQ4. COM2 & COM4 are automatically configured to IRQ3. SERIAL PORT 2 ADDRESS SELECTION COM W3 W4 » COM2 (2F8h) Pins 1 & 2 closed Pins 2 & 3 closed COM4 (2E8h) Pins 2 & 3 closed Pins 1 & 2 closed Disabled Pins 1 & 2 closed Pins 1 & 2 closed Notes: COM1 & COM3 are automatically configured to IRQ4. COM2 & COM4 are automatically configured to IRQ3. PARALLEL PORT ADDRESS SELECTION LPT W1 W2 » LPT1 (378h) Pins 2 & 3 closed Pins 1 & 2 closed LPT2 (278h) Pins 1 & 2 closed Pins 2 & 3 closed LPT3 (3BCh) Pins 2 & 3 closed Pins 2 & 3 closed Disabled Pins 1 & 2 closed Pins 1 & 2 closed PARALLEL PORT MODE CONFIGURATION Mode W7 W22 ECP Pins 2 & 3 closed Pins 1 & 2 closed EPP Pins 1 & 2 closed Pins 2 & 3 closed » Printer Pins 2 & 3 closed Pins 2 & 3 closed Note: You must select a DMA channel when using ECP mode. DMA CONFIGURATION Mode W8 W9 W10 W11 1 Closed Open Closed Open » 3 Open Closed Open Closed SERIAL PORT 1 INTERRUPT SELECTION IRQ W19 W20 W21 IRQ3 Open Closed Open » IRQ4 Open Open Closed IRQ5 Closed Open Open SERIAL PORT 2 INTERRUPT SELECTION IRQ W16 W17 W18 » IRQ3 Open Open Closed IRQ4 Open Closed Open IRQ5 Closed Open Open PARALLEL PORT INTERRUPT IRQ W12 W13 » IRQ7 Open Closed IRQ5 Closed Open MISCELLANEOUS TECHNICAL NOTES The floppy controller in automatically configured. When a cable is attached, it is enabled; when no cable is attached it is disabled.