To whom it may concern,
Sorry, rather lengthy. I tried to cut it down.
I've finally realized I don't think I fully understand
European approvals and I'll discuss why with two examples.
The first example will go from the *system level* down
to the *sub-system level*. The second example will go
from the *system level* up to a *super-system level*.
In other words, I don't think I fully understand how
the stateside concept of "component approval" versus
"listed" gets translated over into the CE mark, or
VCCI, or BCIQ for that matter ... I believe this was
touched on a while back but I can't find it.
System Configuration -
Let's say we have product. It's *model number* is System 1.
System 1 is composed of two sub-systems.
Sub-systems have in turn the *model numbers* Sub-system A
and Sub-system B.
System 1 has a mains input of 115/230vac to a
power distribution unit (PDU).
The PDU inputs the 115/230vac to a power supply.
The power supply outputs 48vdc to sub-systems A and B.
System 1 is NOT a telco product.
--------------------
First - System to sub-system:
System 1 has been successfully tested to the appropriate
emissions, safety, and immunity requirements. It is
declared that System 1 complies to have the CE mark applied.
System 1 is marketed. It is shipped overseas to our friends
in Europe. No problems.
Now, marketing comes along and wants to sell Sub-systems
A and B of System 1 on their own. In other words, the
Sub-systems A and B will NOT necessarily be in configurations
that will use anything from the original configuration of
System 1. And they will be advertised and sold as
Sub-system A and Sub-system B.
Question: Is any retest of the sub-systems by themselves required?
If so, why so?
If not, why not?
--------------------
Second - System to Super-system:
Marketing decides to incorporate two or more System 1's into a
configuration using a product, let's call that Product A, from
another company that itself has been through all required emissions,
safety, and immunity requirements and is itself CE marked. And has
also been marketed and sold in Europe with no problems.
*** Marketing also decides to advertise and sell this
super-system under a new *model number* Super-system 2.
There is a high amount of confidence that this entire system
Super-system 2 will never be shipped as one piece. The Bill
of Lading that would come through Customs though would show
Super-system 2 with parts System 1 and Product A.
Question: Is any retest of Super-system 2 required?
If so, why so?
If not, why not?
--------------------
---------
This message is coming from the emc-pstc discussion list.
To cancel your subscription, send mail to [email protected]
with the single line: "unsubscribe emc-pstc" (without the
quotes). For help, send mail to [email protected],
[email protected], [email protected], or
[email protected] (the list administrators).
