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- Path: sparky!uunet!ralvm29.VNET.IBM.COM
- From: Petty@ralvm29.VNET.IBM.COM (Jack Petty)
- Message-ID: <19920901.070141.797@almaden.ibm.com>
- Date: Tue, 1 Sep 92 09:57:15 EDT
- Newsgroups: comp.dcom.modems
- Subject: Re: Using modems on leased lines
- Disclaimer: This posting represents the poster's views, not those of IBM
- News-Software: UReply 3.0
- References: <2a9c3ee3.cursci@cursci.UUCP> <Aug.26.18.57.33.1992.13741@pilot.njin.net>
- <1992Aug31.000223.2504@random.ccs.northeastern.edu>
- Lines: 13
-
- In <1992Aug31.000223.2504@random.ccs.northeastern.edu> grater boston chapter of the acm writes:
- >Anyone know how to use 14.4K modems on 4-wire voice-grade leased lines?
- >
- A simple hardware answer:
- A modem that runs on the 2 wire switched network needs additional
- hardware to accept and deal with a 4 wire telco interface. It would
- run in the range of $5 to $10 worth of parts and 2 to 4 square inches
- of printed circuit card space in the modem.
- Many "high end" modem vendors do offer modems that can be used on the
- switched network and on 2 or 4 wire leased lines. The folks who are
- using "canned" chip sets and are competing for lowest price probably
- can not justify the additional cost of supporting leased line.
- Jack Petty
-