3expansion/isolation box user guide – ADLINK C514 User Manual

Page 44

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• Expansion/Isolation Box User Guide

3

Expansion/Isolation Box User
Guide

3.1

Introduction

An APU is the kernel of a serial communication controller system. It can
manage up to 8 pieces of F641/F642 box. The APU communicates with the
MPU via dual port RAM and processes the data transfer between MPU and
I/O devices.

F641 box:

Interface:

RS-232

Controller:

FIFO type ST16C554 controller

Connector: 25 pin D -type male (8 ports per box)

F642 box:

Interface:

RS-422

Controller:

FIFO type ST16C554 controller

Connector: 25 pin D -type male (8 ports per box)

C584XB/C588XB is used to convert RS-232 input signal to isolated RS-232,
RS-422 or RS-485 interface. We support signal ground isolation system
between PC system and external application system. We have two models
to support four ports (C584XB) or eight ports (C588XB).

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