need help identifying serial board i need some help with a multi port serial board of unknown origin i m hoping someone knows what this board is or even better what the various switches and jumbers are used for anyway here s description of the card it is a bit card although i noticed that none of the contacts in the bit extension are connected to anything it has ns an chips in sockets and corresponding connecters labeled com com there is also an external female connector with pins there are banks of switches banks of switches and jumpers i believe that i have determined by following traces that sw and sw switches in all control the interrupt level for each of the com ports sw are for irq sw are for irq and sw are for irq the other switches are beyond my meager ability to follow the only identification printed on the board is multi serial port board across the bottom there is a box for serial number but it is blank immediately below the words serial no but not in the box left for the s n are the numbers anyone have any clues your help is greatly appreciated dwayne stratsft uucp we have ways to make you scream dwayne bailey intel advertisement strategic software in the june doctor dobbs journal redford michigan
