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

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Chapter 1. Getting Started
The SCON-20L allows console attachment for up to 16 coax terminals, 16 TN3270
clients, and 16 Telnet clients, providing up to 96 console sessions to 3 LPARS, through
one ESCON interface.
The SCON-22L allows console attachment for up to 32 coax terminals, 32 Telnet clients,
and 256 TN3270 sessions, providing up to 256 console sessions to as many as 16
LPARs, through one ESCON interface.
The SCON-25L allows console attachment for up to 128 coax terminals, 256 Telnet
clients, and 512 TN3270 sessions, providing up to 512 console sessions to as many as
32 LPARs, through a pair of ESCON interfaces.
The SCON-28L allows console attachment for up to 128 coax terminals, 256 Telnet
clients, and 512 TN3270 sessions, providing up to 512 console sessions to as many as
128 LPARs, through a pair of ESCON interfaces
For simpler reading, SCON-2XL and 2XL will be used throughout the remainder of
this book to represent the models SCON-20L, SCON-22L, SCON-25L, and SCON-28L,
except as noted.
Although the LINCS operating system has been pre-installed on the hard drive of your
SCON-2XL, it must be configured for your environment before you can operate it for
the first time. You can reconfigure the LINCS operating system anytime you like, from
any non-DFT coax display or workstation connected to the 2XL, or through a Telnet
client. If you create a new configuration, it will be effective when you IML (Initial
Microcode Load) the 2XL, which can be done immediately or scheduled for a later
time. The hardware manual for the 2XL describes attaching a display for configuring.
The initial configuration may be done from a directly attached coax display or over a
LAN connection using a Telnet client terminal. Although you may configure from any
display port, only one operator may configure the 2XL at one time. If another operator
attempts to enter the configuration program, an error message appears and the attempt
is prevented.
For security reasons, it is recommended that you configure a Supervisor Password
initially to disallow unauthorized access to the configuration process.
This section explains some basic concepts about the LINCS operating system and
Central Control mode that will help you in configuring the SCON-2XL; how to use
Central Control mode, how to identify the boards in your 2XL, and presents the Product
Definition Panel.
Once you have completed a working configuration, it is important to back your
configuration up for disaster recovery.