It depends. If your product is to be located adjacent to the PC in actual operation, then it is appropriate to include the PC with the EUT. If your product is more like an Ethernet hub that is not intended to be co-located with the PC, then the PC can be outside the chamber. I would test it both ways to be sure. If the PC is outside the test chamber, it will be much easier to determine the compliance level and any problems originating from your product.
As to termination, you do need to terminate the cable and should have the link active with traffic flowing over the connection. CISPR 22 suggests a minimum of 10% traffic when testing conducted emissions on telecom ports (9.5.3). CISPR/I is in the process of better defining what should be the consistency of that 10%. But, the intent of the standard is clear -- the port should be terminated and active durng testing. Also refer to section 8.2. John P. Wagner Regulatory Compliance & Mandatory Standards AVAYA Strategic Standards. 1300 W. 120th Ave, Room B3-D16 Phone/Fax: (303) 538-4241 johnwag...@avaya.com > ---------- > From: jan.mob...@philips.com[SMTP:jan.mob...@philips.com] > Reply To: jan.mob...@philips.com > Sent: Wednesday, March 27, 2002 1:36 AM > To: emc-p...@majordomo.ieee.org > Subject: EMC test set-up for device with ethernet connection > > > Hello newsgroup readers, > Question about the EMC test set-up for Emission + Immunity. > We are developing a product which can be connected to the ethernet / LAN/ > Internet. > Do we need to connect the product to a PC (with ethernet card) in the > anechoic room or can we decide to place the PC outside the anechoic room. Or > can we test ONLY with an cable with NO termination. > > What is your opinion > Thanks in advance, > > Jan Mobers > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Ron Pickard: emc-p...@hypercom.com > Dave Heald: davehe...@attbi.com > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > > All emc-pstc postings are archived and searchable on the web at: > http://ieeepstc.mindcruiser.com/ > Click on "browse" and then "emc-pstc mailing list" >
