Multi-Tech MultiModemISI ISI3334/4, Quick Reference Manual

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ISI3334/4 Hardware/Driver Installation Manual
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Network managers have the option of starting with the base four
modem configuration (model #ISI334/4), and then adding four more
modems at a later date without having to use another PC expansion
slot.
This is accomplished by pairing one MultiModemISI with an auxiliary
module (model #ISI3334/EC) interfacing both with on-board
connectors.
Some MultiModemISI on-board components include one jumper
block for activating the number of ports in increments of 4 or 8. One
bank of 8 DIP-Switches for I/O address selection and one IRQ
jumper block, that control both the MultiModemISI and auxiliary
module I/O addressing and IRQ values.
When installing a single MultiModemISI in your PC, the installation
scripts create 8 devices. The first 4 devices are active, however, the
4 devices on the auxiliary module are not active until connected to
the MultiModemISI.
1.5 How to Use This Manual
This manual is divided into three chapters and three appendices.
The information contained in each chapter and appendix is as
follows:
Chapter 1 - Introduction and Description
Chapter 1 begins with a short product introduction and description;
followed by a guide (which you are now reading) to the use of this
manual.
Chapter 2- "AT" Commands and S-Registers
This chapter focuses on the use of “AT” Commands and S-
Registers. Chapter 2 provides basic steps for originating and
answering calls and a summary of commands that enable the user
to establish, read, and modify parameters in addition to dialing.
Information on setting up high speed communication ports in SCO
UNIX and UNIXWare environments is also provided in this chapter.