Card Type	I/O controller
Chipset/Controller	NEC Corporation
I/O Options	Serial ports (8 or 16)
Maximum DRAM	N/A

CONNECTIONS
Purpose	Location
100 Pin interface connector	CN1

RS-232/RS-422 MODE SELECTION
Jumper	RS-232	RS-422
JP1A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP2A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP3A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP4A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP5A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP6A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP7A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP8A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP9A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP10A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP11A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP12A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP13A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP14A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP15A - D	Pins 1 & 2 closed	Pins 2 & 3 closed
JP16A - D	Pins 1 & 2 closed	Pins 2 & 3 closed

MISCELLANEOUS TECHNICAL NOTE

Serial ports are located on an interface box which connects to Hostess 550/MC via the 100-pin interface connector.