Multi Tech Systems Computer Hardware ISI551PC User Manual

MultiTech

Systems

Intelligent Serial Interface (ISI)

Model ISI551PC Card

Owner's Manual

NOTE: This equipment has been tested and found to comply

with the limits for a Class B digital device, pursuant to Part 15 of

the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference when the equipment is

operated in a residential installation. This equipment generates,

uses and can radiate radio frequency energy, and if not installed

and used in accordance with the instruction manual, may cause

harmful interference to radio communications. However, there is

no guarantee that interference will not occur in a particular

installation. If this equipment cause harmful interference to radio

or television reception, which can be determined by turning the

equipment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit

from that of which the receiver is connected.

different

Consult the dealer or an experienced radio/TV technician for

help.

WARNING: Changes or modifications to this unit not expressly

approved by the party responsible for compliance could void the

user’s authority to operate this equipment.

This device complies with Part 15 of the FCC rules. Operation is

subject to the following conditions: (1) This device may not cause

harmful interference, and (2) this device must accept any

interference received, including interference that may cause

undesired operation.

Owner's Manual

P/N 82031702, Rev. C

ISI551PC

This publication may not be reproduced, in whole or in part, without

prior expressed written permission from Multi-Tech Systems, Inc.. All

rights reserved.

Multi-Tech Systems, Inc., makes no representation or warranties with

respect to the contents hereof and specifically disclaims any implied

warranties of merchantability or fitness for any particular purpose.

Furthermore, Multi-Tech Systems, Inc., reserves the right to revise

this publication and to make changes from time to time in the content

hereof without obligation of Multi-Tech Systems, Inc., to notify any

person or organization of such revisions or changes.

RecordofRevision

Manual revised with format and editorial

(2/6/95) changes

TRADEMARKS

Multi-Tech, MultiExpress, MultiModem^IIand the Multi-Tech logo:

Multi Tech Systems, Inc.

i386, i486: Intel Corporation

PC-DOS: International Business Machines Corporation

Multi-Tech Systems, Inc.

2205 Woodale Drive

Mounds View, Minnesota 55112 U.S.A.

(612) 785-3500 or (800) 328-9717

U. S. FAX 612-785-9874

Technical Support (800) 972-2439

BBS (612) 785-3702 or (800) 392-2432

InternetAddress:http://www.multitech.com

TABLE OF CONTENTS

CHAPTER 1

INTRODUCTION & DESCRIPTION

Introduction...........................................1-1

Product Description ..............................1-2

How to Use This Manual ......................1-2

Technical Specifications ......................1-3

1.1

1.2

1.3

1.4

CHAPTER 2

HARDWARE INSTALLATION

2.1

2.2

2.3

ISI Card Installation ..............................2-1

Determining Current System Settings .2-1

Hardware Installation Procedure..........2-3

CHAPTER 3

SERVICE, WARRANTY, AND TECHNICAL

SUPPORT

3.1

3.2

3.3

Introduction...........................................3-1

Limited Warranty ..................................3-1

Tech Support ........................................3-2

3.3.1 Recording ISI551PC Information 3-3

3.3.2 Service ........................................3-4

About the Multi-Tech BBS....................3-5

3.4.1 How to Use the Multi-Tech BBS .3-6

About CompuServe/Internet ................3-7

3.4

3.5

Appendix A:

I/O Address Switch Settings

A-1

1.1 Introduction

The introduction of high speed, data compression

modems, such as Multi-Tech's MultiModem^II

Series, has shown that many PC serial ports are

unable to keep up, essentially becoming a bottleneck

for the entire system. The ISI551PC card provides

processing power to reliably transmit data up to

115.2K bps. Using an ISI enables your system's

processortoperformmoreefficiently.Thisisbecause

the ISI handles all of the byte-by-byte interrupts

generated by the asynchronous terminals and stores

the data in buffers. The ISI then generates one

interrupt for an entire block of information and

transfers the block to the system's microprocessor.

This manual provides the hardware installation

procedures for the ISI551PC card. The ISI551PC

card is used with Multi-Tech's high speed modems;

and is a high speed, buffered, single-port serial card,

with its own on board processor. The operation of

thecardprovidesthebasisforitsnameISI(Intelligent

SerialInterface),551indicatingtheprocessingpower

of a 16550A UART and one port support, and PC

indicating that it is an ISA bus card (8 bit), which is

abletooperateinany286,386,486orPentiumISAor

EISA compatible bus personal computer. The

ISI551PC card can be accessed by any software

writtentothe16550Aspecification.

1-1

This manual contains product specifications,

installation instructions, configuration and technical

support information which will assist you in the

operation process. It is assumed that you have basic

PC skills at the very least. Therefore, we have not

included step-by-step instructions for basic

operations such as logging in and file editing, etc.

1.2 ProductDescription

The ISI551PC card is a single port serial expansion

card which adds data buffering for enhanced serial

port performance. The ISI551PC features a 9-pin

connector (one DB-9), and is a "half-size" expansion

card that supports a high-speed interface (up to

115.2K bps via 32K bytes of RAM). The ISI551PC

features a bank of 8 DIP-Switches for I/O address

selectionandonejumperblockforIRQlevelselection.

1.3 How to Use This Manual

Thischapterbeginswithashortintroduction,product

description, followed by a guide (which you are now

reading) to the use of this manual, as well as the

ISI551PC’s technical specifications.

1-2

This manual includes hardware configuration and

installation procedures described in Chapter 2.

Chapter 3 covers technical support, warranty and

BBS information. Appendix A describes complete

information on Base I/O addressing.

1.4 TechnicalSpecifications

ComputerRequirements

· 286-, 386- or 486- based PC or compatible

OperatingTemperature

· 0° to 50°C (32° to 120°F)

SerialInterface

· RS232C, RS232D

Bus Type

· IBM PC standard (ISA bus) or EISA

PowerConsumption

· 750 mAmps @ +5 VDC

· 100 mAmps @ +12 VDC

· 100 mAmps @ -12 VDC

1-3

CardDimensions

ISI551PC

· 4.95" L x 2.375" W x .062" D

· 12.5 cm L x 6.0 cm W x .16 cm D

BaudRates

· Up to 115.2K bps

ConnectorTypes

· One DB-9 on ISI551PC

I/OAddress

· Set by hardware DIP-Switch, valid range 100H to

3F8H (See Appendix A)

InterruptRequest

· Set by hardware Jumper, valid IRQs -- 2, 3, 4, 5,

7, 10, 11, 12, & 15

1-4

2.1 ISI Card Installation

This chapter provides you with the procedures to

install the Multi-Tech ISI551PC card in your ISA or

EISA bus personal computer.

Hardware installation involves:

Opening your PC.

Setting card configuration (determining

I/O address DIP-Switch setting and IRQ

jumper setting).

Installing the card into the PC.

2.2 Determining Current System

Settings

When you install a serial device into your computer,

the processor must have a means of routing

information to and from the device and the device

must have a means of gaining the processor's

attention. These are called Input/Output (I/O)

addresses and Interrupt Requests (IRQs),

respectively. The ISI551PC card requires eight I/O

addresses and one IRQ value which are not used

by any other device in your system. When selecting

a unique base I/O address, be sure that the other

addresses are also unused. (For example, if you

2-1

use the base I/O address of 380h, addresses 380h-

387h must be unused.)

To select an unused I/O address and an IRQ value,

it may be necessary to find out which values are

already in use. To determine your system's current

settings, refer to Appendix A. The ISI551PC is

shipped with the IRQ set to level 3 and the base I/O

address at 2F8 hex. If you are certain that these

settings are not already in use, continue with the

hardware configuration and installation.

Note: If you choose IRQ 3 or 4, you may have to

remove the serial I/Odevice from your

configuration files. The ISI551PC cards do not

allow you to select IRQ 6 because it is almost

universally used for the floppy drive of a

computer. Also, most computers will not be

able to assign IRQ 2 to the ISI because IRQ 2 is

used for slave control.

2-2

2.3 Hardware Installation Procedure

Perform the procedures in Table 2-1 to configure

and install the ISI551PC card into your ISA or EISA

bus host computer.

Table 2-1

ISI Configuration and Installation Procedure

Step

Procedure

Make sure your computer and

any peripheral equipment

connected to it, are turned off.

Failure to do so may damage

both your ISI card and your PC.

The card may be installed in any

286-, 386- or 486-based

computer with an ISA or EISA

bus architecture.

Figure 2-1. I/O Address Switch/IRQ Jumpers

2-3

Remove the cover of your

Table 2-1 (cont'd)

ISI Configuration and Installation Procedure

Step

Procedure

computer as instructed in your

computer’s documentation.

Locate the unused slot(s) which

you will be using for your ISI

card, and remove the slot

cover(s) per the instructions in

your computer’s documentation.

The figure below shows the

default settings for this card.

Record any changes made to

the Base I/O Address settings.

The default Base I/O Address is

2F8 (COM2). The valid range is

100H - 3F8 H; refer to Appendix

A for a full table of address

settings.

O(pen) = OFF

C(losed) = ON

Figure 2-2. I/O Address Default

2-4

Table 2-1 (cont'd)

ISI Configuration and Installation Procedure

Step

Procedure

Select a unique I/O Address for

your ISI551PC card using the

block of 8-position DIP-Switches

on your ISI circuit board. Figure

2-3 shows various I/O

addressing and IRQ settings.

Record any changes you

make to these settings and

keep them handy for the

driver installation.

Com Port I/O Address Setting

IRQ Level

COM1

COM2

COM3

COM4

Figure 2-3. I/O Address and IRQ Level Settings

2-5

Table 2-1 (cont'd)

ISI Configuration and Installation Procedure

Step

Procedure

InstalltheISIcardintotheselected

expansion slot(s) in the same

manner as any other add-on

card, as instructed in your

computer’s documentation.

Fasten the retaining bracket to

the computer chassis and

replace the cover.

Connect the appropriate cable to

the ISI card. The ISI551PC has

one DB-9 connector. The DB-9 is

a DTE-type serial port suited for

the connection of Data Circuit-

terminatingEquipment, orDCEs.

Note: Any cables connected to

the computer should be shielded

to reduce interference.

Turn power on to your computer.

2-6

If you are using MultiExpress communication

software, note during your communication set-up

that your ISI card is activated by choosing Serial and

then Comm port selection. Do not use the MultiTech

ISIselectionforthiscard. TheMultiTechISIselection

is used with ISI models ISI502 and ISI508, which are

older legacy products.

2-7

3.1

Introduction

This chapter starts out with statements about

your ISI551PC's 2-year warranty. The next

section, Tech Support, should be read carefully if

you have questions or problems with your

ISI551PC. It includes the technical support

telephone numbers, space for recording your

ISI551PC information, and an explanation of how

to send in your ISI551PC should you require

service. The final two sections explain how to use

our Bulletin Board Service (BBS), and a brief

section on the CompuServe/Internet forums.

3.2

LimitedWarranty

Multi-Tech Systems, Inc. (“MTS”) warrants that

its products will be free from defects in material

or workmanship for a period of two years from

the date of purchase, or if proof of purchase is

not provided, two years from date of shipment.

MTS MAKES NO OTHER WARRANTY,

EXPRESSED OR IMPLIED, AND ALL IMPLIED

WARRANTIES OF MERCHANTABILITY AND

FITNESS FOR A PARTICULAR PURPOSE ARE

HEREBY DISCLAIMED. This warranty does not

apply to any products which have been damaged

by lightning storms, water, or power surges or

3-1

which have been neglected, altered, abused,

used for a purpose other than the one for which

they were manufactured, repaired by the

customer or any party without MTS’s written

authorization, or used in any manner inconsistent

with MTS’s instructions.

MTS’s entire obligation under this warranty shall

be limited (at MTS’s option) to repair or

replacement of any products which prove to be

defective within the warranty period, or, at MTS’s

option, issuance of a refund of the purchase

price. Defective products must be returned by

Customer to MTS’s factory transportation

prepaid.

MTS WILL NOT BE LIABLE FOR

CONSEQUENTIAL DAMAGES AND UNDER NO

CIRCUMSTANCES WILL ITS LIABILITY

EXCEED THE PURCHASE PRICE FOR

DEFECTIVE PRODUCTS.

3.3

TechSupport

Multi-Tech has an excellent staff of technical

support personnel available to help you get the

most out of your Multi-Tech product. If you have

3-2

any questions about the operation of this unit,

call 1-800-972-2439. Please fill out the ISI551PC

information (below), and have it available when

you call. If your ISI551PC requires service, the

tech support specialist will guide you on how to

send in your ISI551PC (see Section 3.3.2).

3.3.1 RecordingISI551PC

Information

Please fill in the following information on your

Multi-Tech ISI551PC. This will help tech support

in answering your questions.

ISI551PC Model No.:

ISI551PC Serial No.:

ISI551PC Firmware Version:

DataComm Software Type/Version:

Please note the status of your ISI551PC before

calling tech support.

3-3

3.3.2 Service

If your tech support specialist decides that

service is required, ISI551PCs may be sent

(freight prepaid) to our factory. Return shipping

charges will be paid by Multi-Tech Systems.

Include the following with your ISI551PC:

• a description of the problem.

• return billing and return shipping addresses.

• contact name and phone number.

• check or purchase order number for

payment if the ISI551PC is out of warranty.

(The standard repair charge for this

ISI551PC is $95. This price is valid at the

time of this publication but could change in

the future. Check with your technical

support specialist.)

• if possible, note the name of the technical

support specialist with whom you spoke.

If you need to inquire about the status of the

returned product, be prepared to provide the serial

number of the product sent (see Section 3.3.1).

3-4

Send ISI551PCs to this address:

MULTI-TECH SYSTEMS, INC.

2205 WOODALE DRIVE

MOUNDS VIEW, MINNESOTA 55112

ATTN: SERVICE OR REPAIRS

You should also check with the supplier of your

ISI551PC on the availability of local service and/or

loaner units in your part of the country. You may

call us at 1-800-328-9717 or (612) 785-3500 (in

Minnesota).

3.4

AbouttheMulti-TechBBS

Multi-Tech Systems maintains a Bulletin Board

Service (BBS) for its customers. The information

available via the BBS includes: new product

information, product upgrade data, problem

solving tips, and a message service for you to

leave questions for which you would like

additional information. The phone number for the

Multi-Tech BBS is (612) 785-9875 or (800) 392-

2432 (U.S.A. and Canada). The BBS can be

accessed by any asynchronous modem

operating at 28,800-1200 bps with a setting of 8

bits, 1 stop bit, and no parity (V.34 and

downward compatible).

3-5

3.4.1 HowtoUsetheMulti-Tech

BBS

To use Multi-Tech's BBS, perform the following

steps.

1. Dial our BBS at 1-800 392-2432 (U.S.A. and

Canada) or 612-785-9875 (International).

2. Set your computer or communications

program to "8N1", and to emulate ANSI (e.g.,

with MultiExpress software, press ALT-S and

choose "ANSI").

3. At the prompt, type your first name, last

name, password, then hit RETURN. If you are

a first time caller, after you hit RETURN the

BBS asks if your name is spelled correctly. If

you say yes, our questionnaire is displayed.

You can use our BBS on your first call.

4. There are four BBS areas: the Main Menu,

the Files Menu, Bulletins (from the main

Menu), and the Message Menu. All Bulletins

are Menu-driven. To read the Bulletins, enter

the number of the bulletin you wish to read.

5. File Menu: from the Main Menu, type F: and

the Files are displayed. If you want a list of

directories, type L (list directory) and then

type L again for a list of all directories. If you

do not type the second L, you will list all of

3-6

the files on the BBS. At the list of the

directories, select the number of directories

required. A list of files and a description for

each of the files is displayed. Select a file that

you would like to download; if you already

know the file name, type D at the Files Menu

to download the selected file(s). P ess V to

view a text file.

6. At the Message Menu, you can leave a

message to the Sysop (you can not read

messages at this point). The BBS will tell you

if you have a personal message (mail). At the

prompt (would you like to read it now?), type

R for read now. You must read your

message(s) when you first access the BBS.

3.5

AboutCompuServe/Internet

In addition to the BBS, Multi-Tech provides

support through CompuServe's Modem Vendor

Forum (GOMODEMVEN) under GO

MULTITECH. Refer to your CompuServe

documentation for special operating procedures.

3-7

Multi-Tech is a commercial user of the Internet,

and messages are retrieved from our customers

on a periodic basis. If you prefer receiving

technical support viathe Internet, plaese address

your message to: [email protected].

Multi Tech also maintains a home page on the

World Wide Web at the following address:

http://www.multitech.com

Multi Tech also maintains a FTP Server at the

following address:

FTP.multitech.com

3-8

Appendix A Base I/O Address

Switch Settings

The table below provides the DIP-Switch settings for

valid base I/O addresses of the ISI551PC. The

switches can be set to "OPEN" (O in the table below)

or to "CLOSED" (C in the table below). Holding the

board with the switch facing you (reading numbers

1-8 left to right), the "UP" position for the switch is

OPEN, and the "DOWN" position is CLOSED. "S1"

below is labeled as "1" on the left side of the switch

and so on, through S8. For an example, turn to page

A-3 and compare the default switch settings (2F8)

with the address 380h listing.

Table A-1

I/O Address Switch Settings for ISI Cards

I/O Addr. DIP-Switch Settings

(hex) S1 S2 S3 S4 S5 S6 S7 S8

100

108

110

118

120

128

130

138

140

148

150

158

160

168

-1

Table A-1(cont'd)

I/O Address Switch Settings for ISI Cards

(hex) S1 S2 S3 S4 S5 S6 S7 S8

170

178

180

188

190

198

1A0

1A8

1B0

1B8

1C0

1C8

1D0

1D8

1E0

1E8

1F0

1F8

200

208

210

218

220

228

230

238

240

248

250

-2

Table A-1(cont'd)

I/O Address Switch Settings for ISI Cards

(hex) S1 S2 S3 S4 S5 S6 S7 S8

258

260

268

270

278

280

288

290

298

2A0

2A8

2B0

2B8

2C0

2C8

2D0

2D8

2E0

2E8

2F0

*2F8

300

308

310

318

320

328

330

338

340

*Address 2F8 is the Factory Default

-3

Table A-1(cont'd)

I/O Address Switch Settings for ISI Cards

(hex) S1 S2 S3 S4 S5 S6 S7 S8

348

350

358

360

368

370

378

380

388

390

398

3A0

3A8

3B0

3B8

3C0

3C8

3D0

3D8

3E0

3E8

3F0

3F8

-4

Index

About CompuServe ........................... 3-7

About the Multi-Tech BBS .................. 3-5

Base I/O Switch Settings ................... A-1

Baud Rates ...................................... 1-4

Bus Type ......................................

1-3

Card Dimensions .............................. 1-4

CompuServe .................................... 3-7

Computer Requirements ................... 1-3

Connector Types ............................... 1-4

Hardware Installation Procedure ........ 2-3

How to Use the Multi-Tech BBS.......... 3-6

How to Use This Manual .................... 1-2

1-Index

I/O Address ....................................... 1-4

I/O Address Switch and IRQ Jumper

Locations .................................. 2-3

Introduction ....................................... 1-1

ISI Card Installation ............................ 2-1

Limited Warranty ............................... 3-1

Multi-Tech BBS ................................. 3-5

Operating Temperature ...................... 1-3

Power Consumption .......................... 1-3

Product Description ........................... 1-2

Recording ISI551PC Information ........ 3-3

2-Index

Serial Interface ................................ 1-3

Service ............................................. 3-4

Tech Support .................................... 3-2

Technical Specifications ..................... 1-3

Warranty........................................... 3-1

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