User guide

DC 900-1338I 21

Chapter

Introduction

1.1 Product Overview

Protogate provides a variety of wide-area network (WAN) connectivity solutions for

real-time financial, defense, telecommunications, and process-control applications.

Protogate’s Freeway server offers flexibility and ease of programming using a variety of

LAN-based server hardware platforms. Now a consistent and compatible embedded

intelligent communications processor (ICP) product offers the same functionality as

the Freeway server, allowing individual client computers to connect directly to the

WA N.

Both Freeway and the embedded ICP use the same data link interface (DLI for Freeway,

DLITE for embedded ICP). Therefore, migration between the two environments sim-

ply requires linking your client application with the proper library. The DLI library is

supported on various client operating systems (for example, UNIX, VMS, and Win-

dows NT). The DLITE library requires a compatible ICP device driver to operate and is

currently available on Windows NT/2000 and VMS (AXP systems only).

Protogate protocols that run on the ICPs are independent of the client operating system

and the hardware platform (Freeway or embedded ICP).

1.1.1 Freeway Server

Protogate’s Freeway communications servers enable client applications on a local-area

network (LAN) to access specialized WANs through the DLI. The Freeway server can be

any of several models that use the ICP2432, ICP2424, or ICP6000 products. The

Freeway server is user programmable and communicates in real time. It provides mul-

Most recent

modification

date:

6/1/99 Ginni:

Added

1200/1300 to

FW list