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- Path: sparky!uunet!hayes!tnixon
- From: tnixon@hayes.com
- Newsgroups: comp.dcom.modems
- Subject: Re: PPI 14.4fxsa: Failed RTS/CTS Cable Test
- Message-ID: <5832.2a7846a6@hayes.com>
- Date: 30 Jul 92 19:44:38 GMT
- References: <mr.712277015@rat> <#ymm8qd.jimb47@netcom.com> <mr.712342142@rat>
- Organization: Hayes Microcomputer Products, Norcross, GA
- Lines: 29
-
- In article <mr.712342142@rat>, mr@rat.cica.indiana.edu (Michael
- Regoli) writes:
-
- > As I noted to you in a prior reply the "AT&T19 error" is not an
- > error at all. The &T19 test requires software support. This is not
- > clear from the documentation, but that is the case. It cannot be
- > used from the command line manually.
- >
- > However, there have been reports as well that say PPI is aware of this
- > and recognized it as a BUG rather than a FEATURE.
-
- Such reports are in error. The way PPI explained the &T19 test is
- exactly correct; it requires close software support. Specifically,
- it requires the software to drop the RTS signal at a specific point,
- so that the modem can attempt to detect the state change. I know of
- know comm software that allows the user to manually change the state
- of RTS (although I know of some datacomm test programs that do),
- which means that this is not a test most peple can do "by hand".
- All current Hayes comm programs (for both PCs and Macs) do this test
- automatically (if they detect that they're talking to a modem
- capable of the test) to determine the best method of flow control to
- use.
-
- --
- Toby Nixon, Principal Engineer | Voice +1-404-840-9200 Telex 401243420
- Hayes Microcomputer Products, Inc. | Fax +1-404-447-0178 CIS 70271,404
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