Enterasys SecureStack B2 B2G124-24 Hardware Installation Manual page 41

The high‐speed stacking cables are optional items and must be ordered separately. The
B2G124‐48 and B2H124‐48 support three types of SecureStack stacking cables:
• C2CAB‐SHORT cable to connect two adjacent switches in the stack. If the stack is
in a configuration where the adjacent switches are too far apart for the SHORT
cables, the LONG cable can be used for the connections.
• C2CAB‐LONG cable to connect from the top switch to the bottom switch in the
stack. You need only one C2CAB‐LONG cable per stack.
• C2CAB‐5M cable to connect from the top switch to the bottom switch in the stack
when these two switches are physically located in seperate mounting racks and
require a longer cable reach.
Note: The B2G124-24 supports only the C2CAB-SHORT and C2CAB-LONG stacking
cables.
Figure 3‐7 shows an example of a four‐high stack connected in a ring topology. All STACK
DOWN and STACK UP connectors are used in the installation. The high‐speed stacking
cable connections are from the STACK DOWN connector of one switch to the STACK UP
connector of the next switch up in the stack. A high‐speed stacking cable connection from
the STACK DOWN connector of the switch at the top of the stack to the STACK UP
connector at the bottom of the stack completes the ring connection. In a daisy chain
topology, one cable connection is not made.
Connecting High-Speed Stacking Cables
SecureStack B2 Installation Guide 3-11