Visara SCON-20L Installation - Manual (Page 9)

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Chapter 1. Overview
The SCON-20L allows console attachment for up to 16 coax terminals, 16 TN3270
clients, 16 TELNET clients, and provides support for 1-3 LPARS, through one ESCON
interface, for a total of 96 sessions.
The SCON-22L allows console attachment for up to 32 coax terminals, 256 TN3270
clients, 256 TELNET clients, and provides support for 1-16 LPARs, through one ESCON
interface, for a total of 256 sessions.
The SCON-25L allows console attachment for up to 128 coax terminals, 512 TN3270
clients, 256 TELNET clients, and provides support for 1-32 LPARs, through a pair of
ESCON interfaces, for a total of 512 sessions.
The SCON-28L allows console attachment for up to 128 coax terminals, 512 TN3270
clients, 256 TELNET clients, and provides support for 1-128 LPARs, through a pair of
ESCON interfaces for a total of 512 sessions.
The SCON-3074 provides console attachment for TN3270 clients for up to 128 sessions
and 48 LPARS per ESCON interface (2 ESCON max).
For simpler reading, SCON will be used throughout the remainder of this book to
represent the models SCON-20L, SCON-22L, SCON-25L, SCON-28L, and SCON-3074,
except as noted. SCON-2XL will be used to refer to the models that support coax (all
but the SCON-3074).
In addition to coax terminals, the SCON-2XL models support a variety of desktop
attachments that includes:
• Coax Printers
• StorageTek LMUs (Library Management Units)
• Telnet Displays
• LPD/LPR LAN-attached Printers
• TN3270 Clients
The SCON-3074 supports TN3270 clients only.
The purpose of this document is to provide the information necessary to install the
SCON in most host environments. There is also a troubleshooting section to try to help
diagnose common problems that you may encounter during install.
Although many of the panels in this book may give the appearance that one configuration
was used to generate all of the examples and diagrams, this is not necessarily the case.
To show various options, some of the panels may show variations of the configuration
used to generate most diagrams.
The SCON will fit in a standard 19" rack, but you will need to obtain a Rackmount Kit.