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451-0308 MRV Communications, Inc. www.mrv.com 13
Chapter 1
Overview of the LX-4000 Series
The LX-4000 Series is a secure standalone communication server that is designed for applications
requiring secure console or serial port management. The LX-4000 Series provides the most secure and
robust feature set to meet your remote console management and terminal server needs. The LX-4000
Series includes the most comprehensive security features, such as per port access protection,
RADIUS, Secure Shell v2.0, PPP PAP/CHAP, PPP dial-back, on-board database, menus, and others.
The LX-4000 Series console management solution enables centrally located or remote personnel to
connect to the console or craft ports of any network element or server. This serial connection allows
administrators to manage and configure the remote network devices and servers, as well as perform
software upgrades as if attached locally.
The LX-4000 Series also provides various port densities of RS-232 DTE RJ45 Serial ports, as well as
V.90/K56 flex Internal Modem options. Currently, the LX-4000 hardware provides port densities of 8,
16, 32, and 48 ports, plus port 0 for local management.
Conventions
The following conventions are used throughout this guide:
• User prompt – The user prompt is (for example) InReach:0> for Non-superusers or InReach:0>>
for superusers. The prompt will change based on a login user profile, as configured by the
Superuser. The 0 represents the session number.