Data Connect IG202T - Applications; Figure 1-1. Point-To-Point Network Using the IG202 T;V23 Modem; Figure 1-2. Multipoint Polling Network Using the IG202 T;V23 Modem

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Introduction

7 User’s Manual - SM202T/SMV23 Modem

Applications

The IG202T/V23 modem is designed for point-to-point and multipoint data communications.

Figure 1-1 shows a typical point-to-point configuration using the IG202T modem and Figure

1-2 shows a typical multipoint configuration using the IG202T modem.

Workstation

Modem

Remote Terminal

Figure 1-1. Point-to-Point Network Using the IG202T/V23 Modem

Workstation

Modem

Remote Terminal

Figure 1-2. Multipoint Polling Network Using the IG202T/V23 Modem

There are a number of factors that can affect the modem’s operation and performance.

These include:

y Modem speed (i.e. bit error rate, transmission line distance)

y 2-wire or 4-wire configuration

y Transmission line characteristics, noise, and line impairments

y Transmission cable length (pilot wire)

y Network configuration (point-to-point or multipoint)