COMTROL CORPORATION

HOSTESS 550/MC 16

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.