Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!usc!apple!bionet!hayes.fai.alaska.edu!accuvax.nwu.edu!nucsrl!telecom-request From: rpw3%rigden.wpd@sgi.com (Rob Warnock) Newsgroups: comp.dcom.telecom Subject: Re: Cellular/Cordless Phones in Computer Room Message-ID: <10103@accuvax.nwu.edu> Date: 25 Jul 90 11:08:33 GMT Sender: news@accuvax.nwu.edu Reply-To: Rob Warnock Organization: Silicon Graphics Inc., Mountain View, CA Lines: 24 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 10, Issue 515, Message 2 of 12 In article <10066@accuvax.nwu.edu> alans@hp-ptp.hp.com (Alan Sanderson) writes: | FCC Class B certified for RFI emissions (computer room environment - | not personal computer Class A). Sorry, you got it backwards (typo, no doubt): FCC Part 15 Sub-Part J Class B Computing Devices is stuff used in residential environments (PC's, answering machines, smart phones, Teddy Bears that record/echo you, etc.); Class A is office/industrial. A "Computing Device" as defined and covered by Part 15/J is *anything* which contains a device for generating frequencies in excess of 10 KHz, except things covered in other FCC Parts (radios, microwave ovens, etc.), and wrist watches (which are specifically exempted in 15/J, although I would assume they have the potential to emit harmonics of 32,768 Hz, the most commonly used crystal). Rob Warnock, MS-9U/510 rpw3@sgi.com rpw3@pei.com Silicon Graphics, Inc. (415)335-1673 Protocol Engines, Inc. 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311