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HOSTESS CLUSTER

COMTROL CORPORATION

HOSTESS CLUSTER

Category

Serial controller

Chipset Controller

NEC

I /O Options Supported

Serial ports (16)

Maximum Onboard Memory

2MB

CONNECTIONS

Purpose

Location

Purpose

Location

100-pin serial interface connector

CN1

8-port upgrade card connector

CN3

8-port upgrade card connector

CN2

 

 

RS-232/RS-422 SELECT - JP1-JP8

Setting

Jumper A

Jumper B

Jumper C

Jumper D

RS-232

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

 

RS-422

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Note:JP1-JP8 correspond to serial ports 1 - 8, respectively. Jumper D does not exist on JP5-JP8.

PORT 1 FULL/HALF DUPLEX SELECT

Setting

FD1

Half-duplex mode

Pins 1 & 2 closed

Full-duplex mode (DMA1)

Pins 2 & 3 closed

PORT 2 FULL/HALF DUPLEX SELECT

Setting

FD2

Half-duplex mode

Pins 1 & 2 closed

Full-duplex mode (DMA2)

Pins 2 & 3 closed

PORTS 1 & 2 RS-232 SYNCHRONOUS/ASYNCHRONOUS SELECT - JP9

Setting

Jumper A - Jumper E

Jumper F - Jumper M

Asynchronous

Pins 1 & 2 closed

Pins 1 & 2 closed

Synchronous

Pins 2 & 3 closed

Pins 1 & 2 closed

PORT 1 DATA TERMINAL READY (DTR) OPTIONS

Setting

JP14

JP15

Normal RS-232

Closed

Open

 

Synchronous RS-232

Open

Closed

PORT 2 DATA TERMINAL READY (DTR) OPTIONS

Setting

JP16

JP17

Normal RS-232

Closed

Open

 

Synchronous RS-232

Open

Closed

I/O ADDRESS

Setting

SW1/1

SW1/2

SW1/3

218h

Off

Off

Off

 

21Ch

On

Off

Off

 

238h

Off

On

Off

 

23Ch

On

On

Off

DRAM CONFIGURATION

Memory Size

Bank 0

128KB

(2) 64K x 9

 

2MB

(2) 1M x 9