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Conference irocz::terminal_servers

Title:	Terminal Servers
Notice:	See Note 2 for Directory of important notes. Please use keywords.
Moderator:	LAVC::CAHILLON

Created:	Tue May 14 1991
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	3547
Total number of notes:	12300

3461.0. "BREAK duration on 90TL and 90M terminal servers." by BASEX::EISENBRAUN (John Eisenbraun) Mon Mar 10 1997 11:26

    Another "BREAK" question.  A customer wants to use 90TL and 90M
    terminal servers to talk to GE Series 90 programmable controllers (shop
    floor control devices) using reverse LAT.  These devices require that
    you send them a "LONG BREAK" to get their attention.  A "LONG BREAK" is
    defined by the manufacturer as "at least 3 character times of 'space'
    at the current baud rate".  Can this BREAK be sent from the 90TL and
    90M terminal servers?  (The break would actually be generated from an
    OpenVMS system sending a "BREAK".)
    
    If so, what version of software is required and what software?  (A
    previous note seemed to indicate that NAS software was required for
    this functionality).

T.R	Title	User	Personal Name	Date	Lines
3461.1	Anybody home?	BASEX::EISENBRAUN	John Eisenbraun	`Tue Mar 11 1997 12:04`	3
	Anybody know the answer to questions in -.1? I've looked everywhere I can think of and can't find the information documented. The customer is waiting for an answer...
3461.2	BREAK duration is 275 milliseconds	IROCZ::RRICHARD		`Tue Mar 11 1997 12:37`	5
	The duration of the break is hardcoded to 275 milliseconds.
3461.3	Thanks - looks like it should work.	BASEX::EISENBRAUN	John Eisenbraun	`Tue Mar 11 1997 16:24`	5
	> The duration of the break is hardcoded to 275 milliseconds. Thank you very much, so if my math is correct, the break should be longer than 3 character times down to 110 baud (assuming 10 bits per character).