What could be the need for MK3000 debug cable?

Hi Experts.

 

A customer is aking for the 25-119283-01R Cable - MK3000, MK4000 and MK500 Debug Cable, USB to Serial DB9 Female, but I fail to understand what is the need for this cable since the MK3000 brings USB ports that allow for SW upgrade, file transfering, ...

 

Could anyone tell me apçcations for such cable?

 

Thanks

Best regards

Pedro Tareco

 

Pre Sales Technical Architect

Motorola Enterprise Solutions