[comp.dcom.telecom] T1 Mux Info Needed

"Timothy G. Smith - Technical Consultant" <timsmith@sun.com> (08/17/90)

I need to interface a T1 circuit directly into a VME based machine.
The idea is to take the T1 circuit and feed it into the computer and
twiddle the bits.  In other words the computer will perform the
functions of a DSU and T1 mux.

I am trying to find a VME board that understands T1 signaling and
framing.  Does anyone know where I might find such a critter?

While I am on the subject of T1 and serial IO I have a couple of other
questions that the TELECOM Digest readers may be able to answer.

1) Can someone provide me with the names of the standards that define
DS0, DS1, etc.  I believe that in the old days DS0, DS1, etc were
defined by AT&T's documents but I seem to recall that there is now an
ANSI spec.

2) Does anyone know of a VME serial board that can handle a ~600kbps
unformatted data stream?  By unformatted I mean that there is no
framing at all.  The data consists of a raw bits and a clodk.


Thanks,

        Tim Smith - Technical Consultant

US mail:Sun Microsystems        E-mail:
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PS:  Please respond via direct mail and I will summarize to the
Digest.  Thanks again.