The network express modules (NEMs) are designated as NEM 0 and NEM 1. NEM 0 is on the left, and NEM 1 is on the right:
The ports of each NEM are allocated to the ports on a particular CMOD:
The numerical designations correspond to the CPU module (CMOD) position within the chassis.
Note - The first digit of the designation refers to the CMOD. The second digit refers to the port.