Prerequisites:
For each Active Fail-Open configuration, you will need to make sure you have all these components.
Determine the IP address for the Active Fail-Open switch or, if you are deploying multiple switches, a range of IP addresses
Determine a network mask and the default gateway for the Active Fail-Open switch
4 cables to connect the Active Fail-Open switch and the Sensor
An RJ-45 RS232 cable to access the Active Fail-Open switch CLI
QSFP+ for NS9x00 Sensors
Cables for a fiber Active Fail-Open switch:
LC and MTP/MPO fiber cables for network ports
LC and MTP/MPO fiber cables for monitor ports
Broadly, these are the steps you will need to follow to set up an Active Fail-Open kit.