Addressing computers in a cascade

Computer systems connected within a cascade arrangement are addressed using up to four digits, two for each cascade level. The pairs of digits specify which of the COMPUTER CONNECTIONS ports on each of the AdderView CATx 1000 units must be enabled to reach a specific computer. In the diagram given here, a portion of the previous cascade diagram indicates how the routes to two particular computers are formed and addressed.

Each cascade level requires two digits, hence the computer marked in red requires a longer address (1203) as it is situated at cascade level 2, compared to the blue computer at the top level with its two digit port number.

The first time that you make a connection between two AdderView CATx 1000 units, the master unit will detect this and ask (via the on screen menu) if you want to automatically add computers. If you choose ‘Yes’ then the ports on the cascade will be automatically added to the on screen menu.

Using cascaded computers

In use, cascaded computers can be accessed using exactly the same methods as for those connected directly to the AdderView CATx 1000. However, by far the easiest way is to use the on screen menu. This is because it displays the computer names and does not require any knowledge of port addresses. See the Selecting cascaded computers section in the Operation chapter for more details.

1203

AdderView CATx 1000

Port 12

 

at cascade

 

level 1

CAM CAM CAM CAM

The unique

 

address of

 

this host is:

08

AdderView CATx 1000

CAM CAM CAM CAM

The unique address

of this host is:

1203

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Adder Technology 1000 manual Addressing computers in a cascade