Re: 56k to PM2e30? (fwd)

John G. Thompson (jgt10@livingston.com)
Tue, 29 Oct 1996 08:53:29 -0800 (PST)

On Tue, 29 Oct 1996, Timothy Deem wrote:
>
> Does anyone know of a CSU/DSU that handles converting a SYNC 56k 2-wire
> circuit to the ASYNC 56k connection that the PM's need? I'd be very
> interested in finding out more on those...

You can put a 56K DSU on all Livingston sync ports. If the DSU supports
the v.25 standard then a location can be created with a v.25bis dial
script to have the 56K dial a switched connection.

This is NOT an async 56k connection.

> On Mon, 28 Oct 1996, MegaZone wrote:
>
> > Date: Mon, 28 Oct 1996 16:47:08 -0800 (PST)
> > From: MegaZone <megazone@livingston.com>
> > To: portmaster-users@livingston.com
> > Subject: 56k to PM2e30? (fwd)
> >
> > Once upon a time Mike Greene shaped the electrons to say...
> > >I remember some discussion a while back about 56k csu's attached to a PM for
> > >dial-up connections, but cannot recall what the outcome of that was.
> >
> > Dialup into a CSU? That's weird. You're not talking about the new 56K
> > modems I take it, since those are listed as working on BRI, PRI, and
> > Channelized T1 lines...
> >
> > >Can I attach 56k csu/dsu's directly to the PM? and is this topic covered in
> > >the manual or some FAQ?
> >
> > The ports on a PM-2 are async serial ports. (Except W1 on a PM-2R - which is
> > a sync serial port..) 56K lines are sync lines, so you would need a CSU/DSU
> > that can handle the sync/async conversion.

JGT

--
John G. Thompson      Livingston Enterprises Inc.    Phone: (800) 458-9966
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