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QMultiFlex-400™ Installation and Operating Handbook
7.3 Cascading Multiple QMultiFlex-400™ Units
Multiple QMultiFlex-400™ units can be cascaded together in order to address an arbitrarily
large number of remote modems with a single outbound carrier.
There are two methods that can be used to cascade units together. The first involves
cascading units directly together and involves no external equipment. Figure 7-7 Shows
an example of this. For more capacity i.e. up to 128 remotes, just follow the same
connection pattern.
The second method is to use an ethernet switch to distribute the cascade links to all the
QMultiFlex-400™ units. A standard layer 2 ethernet switch would be suitable.
When configured for directly cascaded QMultiFlex-400™ units as shown in Figure 7-7,
the traffic shaping rules under Edit->Service->General->Tx QoS will automatically display
80 VLAN rules, allowing the bandwidth in the outbound carrier to be partitioned for each
remote modem, as required.
7-8
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