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Installation Instructions for Innotech Genesis Systems

Edition 011100

A-3

A-4.1. GENESIS II COMMS WIRING TOPOLOGY. Bus topology is produced

by connecting from one device to the next and then on to the next (Figure A-1). A simple

means to identify if bus topology is used is to check that:

• There are TWO end connections, and

• Any joining is made between TWO cable ends only.

Three or more cable ends at a joint indicates it is Star topology. The total continuous length of

cable in one section is 1000 metres maximum. In the Star Topology, note that a joint in each

of the diagrams has three or more cable ends joined together. In the ring topology, note that

there are no end connections.

Figure A-1. Correct and Incorrect Bus Topology.

A-4.1.1. Adding Modules to the Comms Link. To insert another module into

the Comms link, make a looping connection through it as in Example A of Figure A-2.

Alternatively, use a GENII RPTR Repeater Module to branch-off to the new module as in

Example B of Figure A-2. Note that the four devices and Port 1 of the Repeater Module are

connected in bus topology. Port 2 of the Repeater Module and the added device form a

separate network linked by the electronics within the Repeater Module.

Always maintain bus topology on the network when adding another module to the network.

Figure A-2. Adding Modules to a Network.

Bus Topology

RRE

Star Topolo

Star Topology

Rin

Topolo

WRONG

Added

Module

Example A

Example B

Repeater

Added

Module

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Innotech Genesis V4 System Manual do Utilizador Página 84