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Re: PAM-5, what are your BERs ?

Thanks.  I went through all of the old standards this morning as the
discussion heated up and your recollection is correct.


At 02:54 PM 2/28/00 -0800, Howard Frazier wrote:
>100BASE-T4 specifies a ternary symbol error rate of less than one
>part in 10^8.
>My recollection is that we didn't feel compelled to do any better than
>10BASE-T, which has a BER objective of less than one part in 10^8.
>I also recall that the BER objective for FDDI-TPPMD and 100BASE-TX is
>2.5 x 10^-10.  We had the same BER objectives on fiber and copper.
>Gigabit Ethernet specified 10^-12 because that's what Fibre Channel
>Howard Frazier
>Cisco Systems, Inc.