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<DIV dir=ltr align=left><SPAN class=516214617-23052011><FONT color=#0000ff
size=2 face=Arial>The /NOTYPEAHEAD will prevent login. This was probably
done because you had random hardware devices (e.g. the UTC clock mentioned in
the comments) on the lines, and didn't want to start a login if the device
talked before your controlling program got started. It was also done (see
txa 4-7) to prevent noise on an open line from starting a loginout process -
that would time out - and restart forever. With errors in the operator
log.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=516214617-23052011><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=516214617-23052011><FONT color=#0000ff
size=2 face=Arial>The /ALTTYPAHEAD on TXA0 is giving you a different (usually
larger - it's a sysgen parameter) type-ahead buffer. This was useful when
you had a device that didn't respond - or responded slowly - to flow
control.</FONT></SPAN></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial></FONT> </DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2 face=Arial>/MODEM
indicates that the line supports modem control.</FONT></SPAN></DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2
face=Arial>/HANGUP is what tells loginout to hangup the line on logout - this is
what tells a modem to hang up, and telnet to disconnect in the simh
emulator.</FONT></SPAN></DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2 face=Arial>/DMA
says to use DMA for terminal output (to off-load the CPU). With some
interfaces, this wasn't recomended because it delayed flow control - early
terminals didn't have enough buffering. DH11 had this problem, but later
interfaces like the DHV could control the DMA based on flow control from the
terminal, and so didn't over-run.</FONT></SPAN></DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2 face=Arial>The
login prompt on a non-autobaud line should be, er, prompt. Make sure you
don't have external authentication configured - this could cause delays while it
figured out if login was allowed - not 20-30 sec - that sounds like a timeout
trying to reach some process. What do the operator and error logs say when
this is going on?</FONT></SPAN></DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2 face=Arial>$ help
set terminal should help you to understand what's going on instead of
guessing. If you have access to the OLD or hardcopy notebooks, the
terminal device driver manual will also help. I think there's more setup
information in the system mangers' manuals - but I don't recall the exact
location.</FONT></SPAN></DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=516214617-23052011><FONT color=#0000ff size=2 face=Arial>VMS is
actually pretty well documented; this stuff isn't as mysterious as folks seem to
think.</FONT></SPAN></DIV><!-- Converted from text/plain format --><FONT
color=#0000ff size=2 face=Arial></FONT><FONT color=#0000ff size=2
face=Arial></FONT><FONT color=#0000ff size=2 face=Arial></FONT><BR>
<P><FONT
size=2>---------------------------------------------------------<BR>This
communication may not represent my employer's views,<BR>if any, on the matters
discussed.<BR> </FONT> </P>
<DIV> </DIV><FONT color=#0000ff size=2 face=Arial></FONT><BR>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B> simh-bounces@trailing-edge.com
[mailto:simh-bounces@trailing-edge.com] <B>On Behalf Of </B>Larry
Baker<BR><B>Sent:</B> Monday, May 23, 2011 13:38<BR><B>To:</B>
tivo.overo@gmail.com<BR><B>Cc:</B> simh<BR><B>Subject:</B> Re: [Simh] Simh
Digest, Vol 90, Issue 16<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>Gary,</DIV>
<DIV><FONT color=#0000ff size=2 face=Arial></FONT><BR></DIV>
<DIV>Here's most of the SYS$MANAGER:SETUP_TERMINALS.COM we used on a MicroVAX
with a DHQ11. Port 0 was connected to a real modem, for dial-up terminal
access. We hardwired the speed; you shouldn't have to with a telnet
port.</DIV>
<DIV><FONT color=#0000ff size=2 face=Arial></FONT><BR></DIV>
<DIV>$!</DIV>
<DIV>$! DHQ11 (TXA0:..TXA7:)</DIV>
<DIV>$!</DIV>
<DIV>$! TXA0: Telebit Trailblazer dial-up modem</DIV>
<DIV>$!</DIV>
<DIV>$! Telebit modem parameters for auto-answer:</DIV>
<DIV>$!</DIV>
<DIV>$!E0 F1 M1 Q1 T V1 X1 Version BA4.00</DIV>
<DIV>$!S00=001 S01=000 S02=043 S03=013 S04=010 S05=008 S06=002 S07=040 S08=002
S09=006</DIV>
<DIV>$!S10=007 S11=070 S12=050 </DIV>
<DIV>$!S45=255 S47=004 S48=000 S49=000</DIV>
<DIV>$!S50=000 S51=004 S52=002 S53=002 S54=000 S55=000 S56=017 S57=019 S58=003
S59=000</DIV>
<DIV>$!S60=000 S61=045 S62=003 S63=001 S64=000 S65=000 S66=001 S67=001
S68=255 </DIV>
<DIV>$!S90=000 S91=000 S92=000 S95=000 </DIV>
<DIV>$!S100=000 S101=000 S102=000 S104=000 </DIV>
<DIV>$!S110=001 S111=255 S112=001 </DIV>
<DIV>$!S121=000 </DIV>
<DIV>$!</DIV>
<DIV>$ If ( F$GetDVI ( "_TXA0:", "EXISTS" ) )</DIV>
<DIV>$ Then</DIV>
<DIV>$ Set Protection=W:RWLP _TXA0: /Device</DIV>
<DIV>$ Set Terminal _TXA0: /Eight_bit /Pasthru /Hostsync /Modem
/DMA /Disconnect -</DIV>
<DIV>
/NoAutobaud /Altypeahd /Hangup /Dialup /Speed=9600 -</DIV>
<DIV>
/Permanent</DIV>
<DIV>$ EndIf</DIV>
<DIV>$!</DIV>
<DIV>$! TXA1: Not connected</DIV>
<DIV>$!</DIV>
<DIV>$ If ( F$GetDVI ( "_TXA1:", "EXISTS" ) ) Then -</DIV>
<DIV>$ Set Terminal _TXA1: /NoType_Ahead /Permanent</DIV>
<DIV>$!</DIV>
<DIV>$! TXA2: Kinemetrics/TrueTime GOES Clock</DIV>
<DIV>$!</DIV>
<DIV>$ If ( F$GetDVI ( "_TXA2:", "EXISTS" ) )</DIV>
<DIV>$ Then</DIV>
<DIV>$ Set Protection=W:RWLP _TXA2: /Device</DIV>
<DIV>$ Set Terminal _TXA2: /NoEcho /NoEight_bit /Pasthru
/NoAutobaud -</DIV>
<DIV>
/NoType_Ahead /Altypeahd /Speed=1200 /Permanent</DIV>
<DIV>$
Assign/System/Executive_Mode/Translation_Attributes=Concealed -</DIV>
<DIV> _TXA2: UTC_Clock:</DIV>
<DIV>$ EndIf</DIV>
<DIV>$!</DIV>
<DIV>$! TXA3: VT100</DIV>
<DIV>$!</DIV>
<DIV>$ If ( F$GetDVI ( "_TXA3:", "EXISTS" ) ) Then -</DIV>
<DIV>$ Set Terminal _TXA3: /DMA /Permanent</DIV>
<DIV>$!</DIV>
<DIV>$! TXA4:..TXA7: Not connected</DIV>
<DIV>$!</DIV>
<DIV>$ If ( F$GetDVI ( "_TXA4:", "EXISTS" ) ) Then -</DIV>
<DIV>$ Set Terminal _TXA4: /NoType_Ahead /Permanent</DIV>
<DIV>$ If ( F$GetDVI ( "_TXA5:", "EXISTS" ) ) Then -</DIV>
<DIV>$ Set Terminal _TXA5: /NoType_Ahead /Permanent</DIV>
<DIV>$ If ( F$GetDVI ( "_TXA6:", "EXISTS" ) ) Then -</DIV>
<DIV>$ Set Terminal _TXA6: /NoType_Ahead /Permanent</DIV>
<DIV>$ If ( F$GetDVI ( "_TXA7:", "EXISTS" ) ) Then -</DIV>
<DIV>$ Set Terminal _TXA7: /NoType_Ahead /Permanent</DIV>
<DIV><BR></DIV>
<DIV apple-content-edited="true">
<DIV
style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space">
<DIV>
<DIV>
<DIV>
<DIV>
<DIV>
<DIV>
<DIV>
<DIV>
<DIV>
<DIV>Larry Baker</DIV>
<DIV>US Geological Survey</DIV>
<DIV>650-329-5608</DIV>
<DIV><A
href="mailto:baker@usgs.gov">baker@usgs.gov</A></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV><BR>
<DIV>
<DIV>On 21 May 2011, at 6:52 AM, <A
href="mailto:simh-request@trailing-edge.com">simh-request@trailing-edge.com</A>
wrote:</DIV><BR class=Apple-interchange-newline>
<BLOCKQUOTE type="cite"><SPAN
style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: medium 'Helvetica Neue'; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"
class=Apple-style-span><SPAN style="FONT-FAMILY: monospace"
class=Apple-style-span>Date: Sat, 21 May 2011 08:52:09 -0500<BR>From: Gary Lee
Phillips <<A
href="mailto:tivo.overo@gmail.com">tivo.overo@gmail.com</A>><BR>To: Mark
Pizzolato - Info Comm <<A
href="mailto:Mark@infocomm.com">Mark@infocomm.com</A>><BR>Cc:<SPAN
class=Apple-converted-space> </SPAN><A
href="mailto:simh@trailing-edge.com">simh@trailing-edge.com</A><BR>Subject:
Re: [Simh] VAX DZ terminal controller unit?<BR>Message-ID: <<A
href="mailto:BANLkTikYFGRY6mRo2aC5BQ3AuxDNbh=rzA@mail.gmail.com">BANLkTikYFGRY6mRo2aC5BQ3AuxDNbh=rzA@mail.gmail.com</A>><BR>Content-Type:
text/plain; charset=ISO-8859-1<BR><BR>Thanks, Mark. I was planning to try the
VH emulation this weekend, in<BR>fact. I'd held off because I wasn't sure I
could use a Qbus device<BR>with the Microvax emulator, and thought I might
have to build the<BR>11/780 emulation instead.<BR><BR>I have more information
on the DZ, too. After much blind and random<BR>experimenting, I found that
using this command on the VAX side will<BR>make the TTAx ports behave in a
somewhat more predictable manner:<BR><BR>SET TERM TTAx -<BR> /MODEM
-<BR> /DIALUP -<BR> /HANGUP -<BR> /DISCONNECT
-<BR> /NOAUTOBAUD -<BR> /PERMANENT<BR><BR>Note that these settings
go away when the VAX is rebooted, so they<BR>probably should be added to
SYSTARTUP_VMS.COM or some other script<BR>that will reset them after a
boot.<BR><BR>By setting those flags for each of the ports on the DZ, I get
a<BR>consistent result. The telnet session is completely disconnected
on<BR>logout, closing the telnet window, and no _TTAx process is
left<BR>hanging around on the VAX side. The remaining issue is some
slowness<BR>in getting up a prompt when first connecting, and that may be
related<BR>to what you've described here. I find that it takes 20 to 30
seconds<BR>for the login prompt to appear after pressing the ENTER key, but
after<BR>that everything works well.<BR><BR>I'll give the VH a try, possibly
today.<BR><BR>--Gary<BR><BR></SPAN></SPAN></BLOCKQUOTE></DIV><BR></BODY></HTML>