From owner-freebsd-isdn Tue Jan 26 18:56:43 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id SAA13009 for freebsd-isdn-outgoing; Tue, 26 Jan 1999 18:56:43 -0800 (PST) (envelope-from owner-freebsd-isdn@FreeBSD.ORG) Received: from vespucci.advicom.net (vespucci.advicom.net [199.170.120.42]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id SAA13004 for ; Tue, 26 Jan 1999 18:56:41 -0800 (PST) (envelope-from avalon@vespucci.advicom.net) Received: from localhost (avalon@localhost) by vespucci.advicom.net (8.8.8/8.8.5) with ESMTP id UAA03770; Tue, 26 Jan 1999 20:56:36 -0600 (CST) X-Envelope-Recipient: freebsd-isdn@FreeBSD.ORG Date: Tue, 26 Jan 1999 20:56:36 -0600 (CST) From: Avalon Books To: Bert Driehuis cc: "H. Eckert" , freebsd-isdn@FreeBSD.ORG Subject: Re: I4B support for US ISDN? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-isdn@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Wed, 27 Jan 1999, Bert Driehuis wrote: > All of this of course just adds to the confusion, as the connector doesn't > tell you whether or not the NT1 is integrated or not. The US equipment > I've seen does label the connector "U", so looking at that might help. I > seem to recall that US ISDN devices call the S0 interface "S/T", but don't > take my word for it. I'm a European. Correct. Our ST interface is RJ-45 only. But the U interface can be either RJ-11/RG-59 (4-pin modular) *or* RJ-45 (8-pin modular)-- manufacturers over here can't seem to make up their minds which one they like more, though most TA's and router are equipped with both U and ST interfaces, and many are equipped with POTS ports (Plain Old Telephone System) for analog devices. The U interface is right off the switch--no termination or anything, and requires an integrated NT-1 to use. The ST (SO) interface and POTS ports are (essentially) just like European version. R. Pelletier Sys Admin, House Galiagante We are a Micro$oft-free site To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message