Yaskawa Microtrac LAN ARCNET Active hub User Manual

Page 5

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INTRODUCTION

4/23/97

I N T R O D U C T I O N

The ARCNET Active Hub is an electronic bi-directional repeater designed to
expand the number of ARCNET nodes that can be used on a single network. A
network node is any attached device that can participate in the token-passing
process. Nodes can be drives, PLC gateways, remote display controllers, remote
logic nodes, remote computers, etc.

The ARCNET Hub receives messages sent by any one transmitting node, and
relays the message to all other nodes on the network. The ARCNET Hub has
four ports. Each port can accommodate a cable segment containing up to eight
(8) nodes. The ARCNET Hub also has LED indicators on the Hub card showing
which port LAN segments are actively receiving. The ARCNET Hub card can
be used in a separate power supply/card cage as a stand alone unit, or installed
into a PLC gateway.

RD 90-279

97-04