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VMIACC-5595 Installation Guide
Cascading
To create a star network configuration greater than 8 nodes, two or more
VMIACC-5595 hubs can be cascaded. Cascading of up to 256 nodes is the limit. This is
due to each node having a unique node ID, ranging from 0 through 255. Any port on
the VMIACC-5595 can be cabled to another VMIACC-5595 to form the cascade.
However, it is best to establish some convention to keep track of the port destinations.
When connecting more than two hubs together, GE recommends using simplex
cables. Simplex cables will not sacrifice an additional port with each cascaded hub.
Figure 1-5 on page 21 and Figure 1-6 on page 22 illustrate three cascaded
VMIACC-5595 hubs. Figure 1-5 on page 21 shows simplex cables cascading the hubs,
with 21 ports available for networking. Figure 1-6 on page 22 shows duplex cables
cascading the hubs and has only 20 ports available for networking. Duplex cables are
used in both examples, interconnecting the VMIACC-5595 with the VMIxxx-5565
Reflective Memory boards.
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