ECO = Engineering Change Order
It basically means that after the product was released, there were
changes that need to be applied and ECO's are used to track the changes.
Each ECO is numbered (in some way). ECO's can be fairly trivial such as
changing some writing on a label, others can be fairly involved.
If you're a software type, think "patch".
When you see a system, it may have tags that indicate what ECO's have
been applied. Some ECO's can be applied in the field, some have to be
done at the factory. There is usually a fair amount of documentation
surrounding ECO's.
Thanks for the explanation.
A former DEC employee told me the other day that the RK05 was
DEC's "most ECO'd" product.
Ashley