Introduction

The LayGO PXS - Protocol eXchange Server family of products are embedded systems that enable a host computer to communicate with synchronous devices over an Ethernet network. In its basic configuration, a PXS acts as a replacement for a LayGO Synchronous Communication Card. Custom applications allow the PXS to act as a router, bridge or front-end processor.

This set of manuals describe the family. Currently there are two memebers in the family: the PXS and PXSe. Most information applies to both types. Where there are differences, they will be noted.

LayGO PXS

PXS Hardware

• ARM7TDMI-based RISC processor (Samsung S3C4530A)
• 8 MB RAM
• 4 MB Flash memory
• 1 10/100 Mbps Ethernet port
• 2 Synchronous ports with software selectable interface type
• 1 Asynchronous console port

LayGO PXSe

PXSe Hardware

• ARM7TDMI-based RISC processor (Samsung S3C4530A)
• 8 MB RAM
• 4 MB Flash memory
• 1 10/100 Mbps Ethernet port
• 1 Synchronous port with software selectable interface type (optional second synchronous port)
• 1 Asynchronous console port (shares connector with the synchronous port)

In addition, the PXSe features the Universal LayGO Bus which allows daughter cards with specialized functionality to be inserted. For instance, a second synchronous line can be added.

Software

• RedBoot boot loader
• eCos multithreaded real-time operating system
• Necessary device drivers
• TCP/IP stack with support for HTTP, DHCP, FTP, DNS, SMTP, SNMP and NTP
• LayGO HDLC Server application

This reference gives a complete technical description of the PXS and explains how to install the PXS in its basic configuration.

The LayGO PXS includes support for configuration using an onboard web server based on version 2.1 of the GoAhead WebServer. Copyright © 2002 by GoAhead Software, Inc. All Rights Reserved.