3Com 3C389 User Manual

Contents

Super Client Drivers 1-7Super Client DriversMany notebook PC vendors are providing customers withsuper client drivers that can enable many different PCCards. PC-DOS 6.1 includes one called PCMSCD.EXE, forexample.They are best used for modems and other PC Cards thatdo not have a Card Services client driver of their own. Ifyou use a super client driver, try to disable support for thePC Card and use the 3Com client driver. 3Com drivershave been written to take advantage of Card Services.Look at the documentation for your super client driverto find out whether you can disable token ring support.Card Services EnablerIf you want to use a token ring device driver that doesnot have built-in Card Services support on a system thatuses Card Services, CS20TOK.EXE is supplied. Thisprogram is a Card Services Enabler that uses Card andSocket Services to configure the 3C389 PC Card. As withother enablers, you must specify the resources desired forthe PC Card, and they must agree with the settings ofthe token ring device driver for the system to workcorrectly.Card and Socket Services Versus Point EnablersIn principle, Card and Socket Services is the bettermethod of connection because it allows you to insert orremove PC Cards from any slot as you want, even whilethe PC is switched on (hot-swapping) and it automaticallyallocates resources like memory, I/O ports, interrupt levels,and slots.Point Enablers, two of which are provided with thePC Card, are popular because they remove themselvesfrom memory after having been loaded—as opposed tothe 30-40 KB needed for Card and Socket Services.