joseph@panix.uucp (Joseph R. Skoler) (05/14/91)
I came across a Codex LSI 48/V.27 bis/ter modem and was wondering if someone could tell me what its use is. What speed is it? Can it be used on regular telephone lines, or does it need a special line? Any information would be greatly appreciated. Thanks, Joseph R. Skoler UUCP: cmcl2!panix!kc2yu!joseph UUCP: panix!joseph BITNET: skohc@cunyvm.bitnet INTERNET: ak526@cleveland.freenet.edu AMPR NET: kc2yu@kc2yu.ampr.org [44.68.32.56] PBBS: kc2yu@nn2z.nj.usa.na
grr@cbmvax.commodore.com (George Robbins) (05/16/91)
In article <1991May14.033353.2407@panix.uucp> joseph@panix.uucp (Joseph R. Skoler) writes: > I came across a Codex LSI 48/V.27 bis/ter modem and was wondering > if someone could tell me what its use is. It's a synchronous modem that is almost certainly only useful as a pair on in conjunction with another compatibile modem. They are normally only set up for leased lines, however various option boards could provide for dial-up and sync/async conversion/ multiplexing. -- George Robbins - now working for, uucp: {uunet|pyramid|rutgers}!cbmvax!grr but no way officially representing: domain: grr@cbmvax.commodore.com Commodore, Engineering Department phone: 215-431-9349 (only by moonlite)
tnixon@hayes.uucp (05/16/91)
In article <1991May14.033353.2407@panix.uucp>, joseph@panix.uucp (Joseph R. Skoler) writes: > I came across a Codex LSI 48/V.27 bis/ter modem and was wondering > if someone could tell me what its use is. > > What speed is it? Can it be used on regular telephone lines, > or does it need a special line? V.27 in general defines a 4800 bps modem (sort of like Bell 208) with a 2400bps fallback mode, and a 75bps secondary channel. V.27bis is a four-wire leased line version, and V.27ter is a two-wire dial-up half-duplex version. You can use it on standard phone lines, but it's probably not going to do you much good. For one thing, you'll need a compatible modem on the other end, and it's probably synchronous-only. -- Toby Nixon, Principal Engineer | Voice +1-404-840-9200 Telex 151243420 Hayes Microcomputer Products Inc. | Fax +1-404-447-0178 CIS 70271,404 P.O. Box 105203 | UUCP uunet!hayes!tnixon AT&T !tnixon Atlanta, Georgia 30348 USA | Internet hayes!tnixon@uunet.uu.net