About Expansion link
When event requirements exceed the capacity of a single unit in terms of input, output, or number of layers, multiple Event Master processors can be linked together through the Expansion Link cards.
When event requirements exceed the capacity of a single unit in terms of input, output, or number of layers, multiple Event Master processors can be linked together through the Expansion Link cards.
The Link card has 2 CXP connectors which can support up to 12 10-Gbit channels.
The figure below illustrates the Link card's rear panel connectors:

| 1 | CXP connector — CXP 1 |
| 2 | CXP connector — CXP 2 |