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HOSTESS 550

COMTROL CORPORATION

HOSTESS 550

Card Type

Multi-user serial controller

Chipset/Controller

Texas Instruments (UART)

I/O Options

Serial ports (4 or 8)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

100-pin interface connector

CN1

Upgrade connector 1

J2

Daisy chain connector 1

CN2

Upgrade connector 2

J3

Daisy chain connector 2

CN3

   

Note: Daisy chain connectors are for the use of multiple cards on the same interrupt.

I/O ADDRESS SELECTION

Address

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

140h

Off

On

Off

On

On

On

On

200h

On

On

On

Off

On

On

On

240h

Off

On

On

Off

On

On

On

280h

On

Off

On

Off

On

On

On

500h

On

On

Off

On

Off

On

On

540h

Off

On

Off

On

Off

On

On

580h

On

Off

Off

On

Off

On

On

640h

Off

On

On

Off

Off

On

On

680h

On

Off

On

Off

Off

On

On

6C0h

Off

Off

On

Off

Off

On

On

700h

On

On

Off

Off

Off

On

On

Note: These settings are for use with SCO XENIX, SCO UNIX, AT&T UNIX, INTERACTIVE 386/ix, and Microport V/386 operating systems.

I/O ADDRESS SELECTION

Address

Controller

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

280h

First

On

Off

On

Off

On

On

On

240h

Second

Off

On

On

Off

On

On

On

Note:These settings are for use with the SunOS operating system with a maximum of two Hostess 550 controllers in a system..

SERIAL PORT INTERRUPT SELECTION

IRQ

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

2

On

On

Off

Off

Off

Off

Off

3

On

Off

On

Off

Off

Off

Off

4

On

Off

Off

On

Off

Off

Off

5

On

Off

Off

Off

On

Off

Off

10

On

Off

Off

Off

Off

On

Off

11

On

Off

Off

Off

Off

Off

On

Note: These settings are for use with SCO XENIX, SCO UNIX, AT&T UNIX, INTERACTIVE 386/ix, DOS, and Microport V/386 operating systems.

I/O ADDRESS SELECTION

Address

Controller

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

280h

First

On

Off

On

Off

Off

Off

Off

240h

Second

On

Off

Off

On

Off

Off

Off

Note: These settings are for use with the SunOS operating system.

MISCELLANEOUS TECHNICAL NOTE

Switch 1/1 is Off for an eight port controller, on for a four port. Switch 2/8 is on for a four port controller and Off for an eight port. Serial ports are located on an interface box which connects to Hostess 186 via the 100-pin interface connector.