The MUX card serial number is located on the side of the MUX card.
To display the MUX card serial number, enter the info -T mux[x] command (where x is a value of 1 or 2 for each MUX card) from the management module CLI.
The MUX card serial number is located in the Component serial no. field as shown in the following sample output:
system> info -T mux[1]UUID: 10C9 6C41 24C7 11DC A824 DA2B 921E 8515 Manufacturer: Not Available (SLRM) Manufacturer ID: 20301 Product code: JCS1200 MUX card Serial number: Not Available Part no.: 740-023169 Component serial no.: JCS-MT-SN-BCG001 CLEI: Not Available