What is the major difference between the V1 and V2 6000A?

What is the major difference between the Version 1 and Version 2 MTS\TB-6000A?

There are multiple enhancements to the 6000A design with the V2 platform but the major difference is that the mainframe is now two pieces: the base unit and a module carrier which attaches to the base. This allows hardware to be easily updated in the field as new modules are released that may need hardware changes to the mainframe. The 6000A V2 can support the CSAM 100G module with its E6300 Carrier module. The CSAM is not supported on the Version 1 6000A.