User`s guide

1-2 Introduction
Introduction
The PCLTA-20 adapter provides any host processor equipped with a 32-bit PCI
interface and compatible operating system with access to a L
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network.
Installation software for the PCLTA-20 adapter is provided in the Connectivity
Starter Kit Model 58030-01 (which must be purchased separately), and provides a
software-based control panel and a software driver for Microsoft Windows 95, 98, or
NT operating systems. Installation software also is available on Echelon’s web site at
www.echelon.com/support.
The control panel provides a convenient means of
setting and modifying installation parameters, as well as displaying error messages.
The adapter supports Windows 95 and 98 Plug n’ Play operation, simplifying
installation and use.
The PCLTA-20 adapter operates at 10MHz and, depending on the model selected,
includes either an integral twisted pair transceiver or an SMX transceiver interface.
For models with an integral twisted pair transceiver, the network connection is made
via a removable screw terminal block.
As shown in figure 1.1 below, the L
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Network Services (LNS) architecture
allows any number of installation, maintenance, monitoring and control devices to
exist in a system and to adapt to network configuration changes automatically. That
is, it allows users to reconfigure the system from any user interface device anywhere
on the network and ensures that all monitoring and control stations are always up-
to-date with respect to the system’s configuration. When used with the appropriate
software, the network services interface (NSI) functionality of the PCLTA-20 adapter
allows the attached host to tap into the LNS infrastructure as a client or server
application.
Operator
Console
Control Panel
Remote
Monitoring
Tool
Supervisor
Maintenance
Tool
Foreign System
Gateway
Service
Technician
Tool
Remote
Console
Control devices (sensors,
actuators, motors, etc.)
Figure 1.1
Multiple System Level Tools based on LNS
The adapter also permits the host PC to act as an application node, running
application-specific programs while the adapter handles lower layer functions such as
media access control, collision avoidance, message validation, authentication, and