RESENT WITH HARD RETURNS (sorry if original was unreadable!)

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Mar 25 17:44:00 1998

To:       [email protected]                                   (INTERNET)

From:     Scott (A.) Lemon                   :0H31   (BNR)      BNRTP  BNR

Subject:  EN 300 386-2

Group,

As many of you are aware, EN 300 386-2 is looming on the horizon 
as the new product-specific EMC standard for telecom network 
equipment.  Currently dow is 30 Sep 2002, but I have heard that 
this could be moved up to as early as 2000.

Presently, telecom network equipment is typically evaluated to 
EN55022 class A limits.  EN 300 386-2 requires that equipment other 
than that located in a "telecommunication centre" (defined in 
ETSI 300 386-1) must meet class B limits for radiated emissions. 

I am looking for input/interpretation from other telco network 
equipment manufacturers and/or consultants regarding determination 
of the appropriate environment characteristic in various scenarios 
(i.e. when to test to class B).  For example, if you have a 
stand-alone remote switching center/concentrator in its own 
environmental enclosure, can this be classified as a "minor telco 
centre" (class A) or must it be considered "outdoor location" 
(class B)?  If the telco operator locates his/her CO in the basement 
of an office building (not a "dedicated, separate building"), does 
this then mean (per 386-1 subclause B.3) that this is considered 
"customer premise" type equipment and therefore must meet 
class B?

Any feedback/thoughts/comments?

Regards,

Scott Lemon
Nortel    

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