Configuring Systems for Terminals, Printers, and Other Serial Devices (32022-90057)

Introduction

Typical Network Configurations

Chapter 1

In the simplest configuration, devices connected through a DTC function as

though a single cable were connecting the device and a logical device on one of

the computers configured to recognize the device. A sample network

configuration in which host-based management is used in its simplest

configuration, is shown in Figure 1-1. System A manages DTC 1 and DTC 2,

while System B manages DTC 3. If the correct configuration is entered on

System A and System B, then terminals connected to any of the DTCs can

communicate with ether of the systems. It is also possible to configure any DTC

port so that access is restricted to only one of the systems.

Figure 1-1 LAN with Host-Based Management

Host-based management also has the capability to provide the following types of

network connections. These connections are described later in this section.

• PAD access from terminals connected to PADs to the system that is managing the

DTC.

• X.25 Network Access from other systems connected to a PSN to the system that is

managing the DTC.

• Telnet access from terminals connected to the DTC ports to systems running ARPA

standard Telnet services.

System B

HP e3000

Series 900

HP e3000

Series 900

System A

DTC 1

DTC 2

DTC 3