Digi PortServer II, Руководство пользователя

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Terminal server configuration - remote devices and RealPort
Figure 3 PortServer II - Remote Devices and RealPort
In this configuration, several “dumb” terminals are connected to a corporate applica-
tion server by means of a PortServer II and the PSTN (Public Service Telephone Net-
work) or Frame Relay. This example shows that it is also possible to connect a variety
of different devices to the PortServer II in a “dial-up” configuration, including print-
ers, modems, and other peripherals that might be found in a typical branch or satellite
office. Features to note include:
• The corporate application server may be running RealPort software (see Chapter
11, Configuring RealPort Connections).
• PortServer II’s Ethernet port is configured with an IP address (see Chapter 4).
• PortServer II and the application server could be connected by a “dial-up” line
(not shown, see Chapter 9, Configuring Modem Connections).
• Terminals, modem, and printer are connected to serial ports on PortServer II.
PortServer II
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PortServer
Application Server
T e r m i n a l
T e r m i n a l
T e r m i n a l
Printer
P S T N o r
Frame Relay
M o d e m o r D S U / C S U