Path: utzoo!utgpu!watserv1!watmath!att!bellcore!rutgers!mailrus!accuvax.nwu.edu!nucsrl!telecom-request From: bnrgate!.bnr.ca!hwt@uunet.uu.net (Henry Troup) Newsgroups: comp.dcom.telecom Subject: Identifying Switches Message-ID: <8990@accuvax.nwu.edu> Date: 15 Jun 90 14:30:35 GMT Sender: news@accuvax.nwu.edu Reply-To: Henry Troup Organization: Bell-Northern Research, Ltd. Lines: 26 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 436, Message 9 of 12 In article <8903@accuvax.nwu.edu> DREUBEN@eagle.wesleyan.edu) (DOUGLAS SCOTT REUBEN) writes: >I still can't tell what sort of electronic switch it is just by >hearing the busy/ring signals (ie, to distinguish between a DMS-100 >and 200, for example), That's because the DMS-100 and 200 use the same tone generators, etc. The product line includes 100, 100/200 combined, 200, and access tandem. (Plus DMS-250, 300, and MTX). 100 is local, 200 is toll, essentially. I've never been totally clear on the _hardware_ difference between a 100 and a 200. I don't think there is any. Each of the above products is available with two generations of CPU - NT40 and SuperNode (tm), a 68020/30/40 version. Then there are the peripherals - the original series, probably not supported on SuperNode, and the XPM series, themselves 68020 based, on both NT-40 and SuperNode. Watch the press for more announcements that will complicate this even more! Henry Troup - BNR owns but does not share my opinions ..uunet!bnrgate!hwt%bwdlh490 or HWT@BNR.CA