SEALEVEL SYSTEMS, INC. VERSA COMM+4/EX Card Type Serial card Chip Set Unidentified Maximum Onboard Memory Unidentified I/O Options Serial ports (4 RS-232 via DB 37 connector) Hard Drives supported None Floppy drives supported None Data Bus 16-bit ISA Card Size Full-length, full-height [Image] CONNECTIONS Function Label Serial Port P3 PORT ADDRESS SELECTION Port 1 Port 2 Port 3 Port 4 SW1/6 SW1/7 SW1/8 3F8h 2F8h 3E8h 2E8h On On Off 2F8h 3E8h 2E8h 2E0h On Off On 3E8h 2E8h 280h 288h On Off Off 500h 508h 510h 518h Off On On 580h 588h 590h 598h Off On Off 1500h 1508h 1510h 1518h Off Off On 3220h 3228h 4220h 4228h Off Off Off Note: Use either the port address selection or the base I/O address selection. When using the port address selection, switches 1-5 must be off. BASE I/O ADDRESS SELECTION Setting SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 1A0h On Off Off On Off » 280h Off On Off On On 2A0h Off On Off On Off 2E0h Off On Off Off Off 380h Off Off Off On On Note: When using the base I/O address selection, switches 6-8 must be on. SERIAL PORT 1 INTERRUPT SELECTION IRQ J1B/A J1B/B J1B/C J1B/D J1B/E J1B/F J1B/G J1B/H J1B/I J1B/J 3 Closed Open Open Open Open Open Open Open Open Open 4 Open Closed Open Open Open Open Open Open Open Open » 5 Open Open Closed Open Open Open Open Open Open Open 6 Open Open Open Closed Open Open Open Open Open Open 7 Open Open Open Open Closed Open Open Open Open Open 9 Open Open Open Open Open Closed Open Open Open Open 10 Open Open Open Open Open Open Closed Open Open Open 11 Open Open Open Open Open Open Open Closed Open Open 12 Open Open Open Open Open Open Open Open Closed Open 15 Open Open Open Open Open Open Open Open Open Closed SERIAL PORT 2 INTERRUPT SELECTION IRQ J2B/A J2B/B J2B/C J2B/D J2B/E J2B/F J2B/G J2B/H J2B/I J2B/J 3 Closed Open Open Open Open Open Open Open Open Open 4 Open Closed Open Open Open Open Open Open Open Open » 5 Open Open Closed Open Open Open Open Open Open Open 6 Open Open Open Closed Open Open Open Open Open Open 7 Open Open Open Open Closed Open Open Open Open Open 9 Open Open Open Open Open Closed Open Open Open Open 10 Open Open Open Open Open Open Closed Open Open Open 11 Open Open Open Open Open Open Open Closed Open Open 12 Open Open Open Open Open Open Open Open Closed Open 15 Open Open Open Open Open Open Open Open Open Closed SERIAL PORT 3 INTERRUPT SELECTION IRQ J3B/A J3B/B J3B/C J3B/D J3B/E J3B/F J3B/G J3B/H J3B/I J3B/J 3 Closed Open Open Open Open Open Open Open Open Open 4 Open Closed Open Open Open Open Open Open Open Open » 5 Open Open Closed Open Open Open Open Open Open Open 6 Open Open Open Closed Open Open Open Open Open Open 7 Open Open Open Open Closed Open Open Open Open Open 9 Open Open Open Open Open Closed Open Open Open Open 10 Open Open Open Open Open Open Closed Open Open Open 11 Open Open Open Open Open Open Open Closed Open Open 12 Open Open Open Open Open Open Open Open Closed Open 15 Open Open Open Open Open Open Open Open Open Closed SERIAL PORT 4 INTERRUPT SELECTION IRQ J4B/A J4B/B J4B/C J4B/D J4B/E J4B/F J4B/G J4B/H J4B/I J4B/J 3 Closed Open Open Open Open Open Open Open Open Open 4 Open Closed Open Open Open Open Open Open Open Open » 5 Open Open Closed Open Open Open Open Open Open Open 6 Open Open Open Closed Open Open Open Open Open Open 7 Open Open Open Open Closed Open Open Open Open Open 9 Open Open Open Open Open Closed Open Open Open Open 10 Open Open Open Open Open Open Closed Open Open Open 11 Open Open Open Open Open Open Open Closed Open Open 12 Open Open Open Open Open Open Open Open Closed Open 15 Open Open Open Open Open Open Open Open Open Closed SERIAL INTERRUPT MODE SELECTION PORT 1 IRQ J1A Normal interrupt mode Pins 1 & 2 closed Shared interrupt mode Pins 2 & 3 closed » Shared interrupt mode with pull Pins 3 & 4 closed down resistor SERIAL INTERRUPT MODE SELECTION PORT 2 IRQ J2A Normal interrupt mode Pins 1 & 2 closed » Shared interrupt mode Pins 2 & 3 closed Shared interrupt mode with pull Pins 3 & 4 closed down resistor SERIAL INTERRUPT MODE SELECTION PORT 3 IRQ J3A Normal interrupt mode Pins 1 & 2 closed » Shared interrupt mode Pins 2 & 3 closed Shared interrupt mode with pull Pins 3 & 4 closed down resistor SERIAL INTERRUPT MODE SELECTION PORT 4 IRQ J4A Normal interrupt mode Pins 1 & 2 closed » Shared interrupt mode Pins 2 & 3 closed Shared interrupt mode with pull Pins 3 & 4 closed down resistor CLOCK MODE SELECTION Divide J5 1 Pins 1 & 2 closed 2 Pins 3 & 4 closed 4 Pins 5 & 6 closed