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From: phil@amdcad.UUCP (Phil Ngai)
Newsgroups: net.unix,net.unix-wizards
Subject: Re: rts/cts on 3b2 tty ports
Message-ID: <1345@amdcad.UUCP>
Date: Thu, 16-May-85 03:26:25 EDT
Article-I.D.: amdcad.1345
Posted: Thu May 16 03:26:25 1985
Date-Received: Thu, 16-May-85 22:29:15 EDT
References: <388@gitpyr.UUCP>
Reply-To: phil@amdcad.UUCP (Phil Ngai)
Distribution: net
Organization: AMD, Sunnyvale, California
Lines: 18
Xref: watmath net.unix:4517 net.unix-wizards:13182

In article <388@gitpyr.UUCP> robert@gitpyr.UUCP (Robert Viduya) writes:
>
>We just got a few 3B2s donated from AT&T and I'm trying to get the tty ports
>to talk to an Ungermann-Bass network using hardware flow-control.  The network
>implements hardware flow-control using the standard EIA-RS232 lines RTS and CTS
>in a non-standard way (the standard allows only one way flow-control; the UB
>equipment needs two way flow-control).  Basically, RTS is used to control the
>data flow from the network box to the terminal (or 3B2, in this case).  CTS is
>used to control data flow from the terminal (3B2) to the network box.  The two
>lines are independent of each other (deviating from the RS232 standard).

That's gross. You should use XON/XOFF for flow control.
-- 
 I speak for myself and no one else.

 Phil Ngai (408) 749-5720
 UUCP: {ucbvax,decwrl,ihnp4,allegra}!amdcad!phil
 ARPA: amdcad!phil@decwrl.ARPA