[Info-vax] SET TERM /TTSYNC on ancient VMS versions

[Jan-Erik Söderholm]

Den 2018-08-16 kl. 18:43, skrev Chris:
> On 08/16/18 16:52, Johnny Billquist wrote:
> 
>>
>> Not entirely true. DEC terminals always had support for DTR/DSR. But
>> that is used to indicate if something is connected or not, and is not
>> used for flow control. The DTR/DSR is also included in the MMJ.
>> All DEC terminals have flow control using XON/XOFF. I'm trying to
>> remember if maybe VT05 might be an exception, but I think not. But all
>> terminals after the VT05 definitely have XON/XOFF flow control.
> 
> Using RT11 in the late eighties, control s , control q worked for
> scrolling, but pretty sure the vt220 could be setup from full
> modem control or xon / xoff.

Didn't the setup screens had a "flow control" option that on many
terminals could be set to "soft", "hard" or "none"?
"Soft" was Xon/Xoff, hard was the "modem lines" (I remember it as
CTS/CTR or similar but doesn't matter) and "none" was, well, none...

And yes, as the name implies, the modem control lines might originally
have been meant for modem control, but they works just as well for flow
control, if you want to.