3Com PS Hub 40, User Manual

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DUA1640-5AAA02
Connecting PS Hubs Together (Stacking) 3-15
Using Hot Swap
Cascade Units
To connect PS Hubs together, using Hot Swap Cascade Units:
1
Position the units as required; rack mounting or wall mounting them as
necessary.
2
Connect the Hot Swap Cascade Units with cascade cables:
■
Connect the cables’ connectors marked UP to the UP ports on the
Hot Swap Cascade Units.
■
Connect the cables’ connectors marked DOWN to the DOWN ports
on the Hot Swap Cascade Units.
Secure the cables by tightening the cables’ captive screws as tight as
possible by hand.
3 Starting at the bottom, connect the bottom Hot Swap Cascade Unit to
the UP and DOWN port of the unit. Secure the Hot Swap Cascade Unit
in place by tightening its long captive screws as tight as possible by
hand.
4 Continue up the stack, repeating step 3 for each unit, as shown in
Figure 3-6.
Figure 3-6
Connecting PS Hubs Together Using Hot Swap Cascade Units
DOWN
DOWN
UP
UP