Introduction
8
User’s Manual - SM19202 Fast Poll Modem
Applications
The SM19202FP modem is designed for point-to-point and multipoint data communications.
Figure 1-1 shows a typical point-to-point configuration using the SM19202FP modem and
Figure 1-2 shows a typical multipoint configuration using the SM19202FP modem.
Workstation
Modem
Modem
Remote Terminal
Figure 1-1. Point-to-Point Network Using the SM19202FP Modem
Workstation
Modem
Modem
Modem
Modem
Modem
Modem
Remote Terminal
Remote Terminal
Figure 1-2. Multipoint Polling Network Using the SM19202FP Modem
There are a number of factors that can affect the modem’s operation and performance.
These include:
Modem speed (i.e. bit error rate, transmission line distance)
2-wire or 4-wire configuration
Transmission line characteristics, noise, and line impairments
Network configuration (point-to-point or multipoint)
