Avocent ESP Serial Hub, Installer/User Manual, Page: 11 / 96

1
C H A P T E R
1
Introduction
Features
ESP Ethernet serial hubs contain an autosensing 10/100 Ethernet port and multi-interface (MI)
serial ports. MI ports may be configured to use the RS-232, RS-422 or RS-485 physical interface.
• The ESP-2 MI hub contains two MI serial ports.
• The ESP-4 MI hub contains four MI serial ports.
• The ESP-8 MI hub contains eight MI serial ports.
• The ESP-16 MI hub contains eight MI serial ports and eight dedicated RS-232 ports.
Modular adaptors are available to facilitate the connection between the ESP serial hub ports and
target devices.
Serial port access
All ESP hubs support several ways to access the serial ports. Each of these connection methods is
described in Chapter 3, beginning on page 15.
• Serial port redirection
• Telnet server
• Raw TCP server
• Raw TCP client
• Modem emulation
• Configuration utility
Serial port redirection uses drivers installed on a host computer. The ESP serial hub drivers are
supported on the following operating systems:
Windows
®
2000 Windows XP
Windows NT
®
4.0
Windows Server 2003
OpenServer™ 5.0.5a or higher UnixWare
®
7.0.1a or higher
Linux
®
AIX
®
4.3 and 5.1/5.2
Sun
®
Solaris
™
for X86 or SPARC 8 or higher