Article View: comp.terminals
Article #74Answers to Frequently Asked Questions
From: Richard Shuford
Date: Thu, 30 Jul 1992 01:22
Date: Thu, 30 Jul 1992 01:22
176 lines
7044 bytes
7044 bytes
This information was collated by Peter D. Smith (pdsmith@bbn.com).
In article <1992May2.103106.2707@usenet.ins.cwru.edu>
> aa710@cleveland.Freenet.Edu (Greg Johns) writes:
> I need docs for a 1980 VT100 terminal (Digital Equipment Corporation).
> Especially for the DIP switch settings.
What DIP switches? Do you mean the SETUP switches? Here goes!
comp.terminals unofficial FAQ
==============================
19-DEC-1991 Modifed Q. 2 (Interesting DEC escape sequences)
Added d) (printer on/off)
22-NOV-1991 Added Q. 7 (Concept 108 baud rate)
20-NOV-1991 Added Q. 6 (VT125 setups) and changed Q.1 to point to Q.6
1-NOV-1991 Added Q. 5 (cursor on and off)
1) How do I save my VT100 setups? -- see question 6
2) What are interesting DEC escape sequences?
a) ESC [ ? 5 h :(white on black) or ESC [ ? 5 l (black on white).
b) ESC [ ? 6 7 l :to make <=] send DEL; ESC[?67h to make it send BackSpace.
c) ESC [ ? 2 5 h :Cursor visible; ESC [ ? 2 5 l --- Cursor Invisible
d) ESC [ <nnn> i :Printer control, possible <nnn> values are
0=print screen 5=turn on printer controller 4=turn off..
?0=print graphics screen ?5=turn on auto-print ?4=turn off..
3) What are the DIP switches for an H19 (or Z19)?
Switch S402
0 cursor is 0=underscore 1=block
1 keys 0=will 1=wont click
2 lines 0=wont 1=will wrap
3 Auto LF on CR is 0=off 1=on
4 Auto CR on LF is 0=off 1=on
5 Terminal mode is 0=Heath/Zenith 1=Ansi
6 keypad 0=normal 1=shifted
7 refresh 0=60Hz 1=50Hz
Switch S401
0..3 = Baud rate, on of N/A 110 150 300 600 1200 1800 2000
2400 3600 4800 7200 9600 N/A N/A N/A such that if all
switches are ZERO except switch 0, terminal is 300 baud
4 Parity is 0=off 1=on
5 Parity is 0=even 1=odd
6 Parity is 0=normal 1=stick
7 Duplex is 0=half 1=full
From: Joseph Gil <yogi@cs.ubc.ca>
Organization: Computer Science, University of B.C., Vancouver, B.C., Canada
Q: How can an application set the Backarrow (the key at the north east
side of the keyboard which is supposed to erase the previous char.
The icon on it is something like <=] partkey of vt320 to send backspace? DEL?
A: Send ESC[?67l to make <=] send DEL
Send ESC[?67h to make it send BackSpace.
The following CSH script in unix may turn useful for switching
between the two modes.
if ($?DEL) then
stty erase "^?"
echo "[?67l"
else
stty erase ""
echo "[?67h"
endif
5) How do I turn my cursor on and off?
ESC [ ? 2 5 h --- Cursor visible
ESC [ ? 2 5 l --- Cursor Invisible
Many "ANSI" terminal implement this, including all DEC VT100 and
higher, the Kermit terminal emulator, etc, but not all.
6) What are the VT1xx setup items?
Storing SETUP -- go into SETUP-A mode and press 'S'
Recalling SETUP -- go into SETUP-A mode and press 'R'
Resetting to factory default -- go into SETUP-A mode and press 'reset'
Screen brightness -- go into SETUP-A mode and use up/down arrow keys.
SETUP B
Bank 1
Scroll is 0=jump 1 =smooth
Auto repeat 0=off 1=on
Screen background is 0=dark 1=light
Cursor is 0=underline 1=block
Bank 2
Margin Bell is 0=off 1=on
Key click is 0=off 1=on
Terminal is a 0=vt52 1=ansi (vt100)
Auto XON is 0=off 1=on
Bank 3
Character set is 0=us 1=uk
Auto wrap is 0=off 1=on
Line feed/new line is 0=off 1=on
Interlace is 0=off 1=on
Bank 4
Parity sense is 0=odd 1=even
Parity is 0=off 1=on
There are 0=7 1=8 bits/char
Power supply is 0=60 1=50 hz
Bank 5
Reserved = 0
Aux. Port has 0=7 1=8 bits/char
Aux port speed is 00=300 01=1200 10=2400 11=9600
Aux port speed second bit
7. How do I change the baud rate of my Concept 108 terminal??
According to the manual...
3.Display the status line by typing the STAT key. If the
termina is not in Remote mode (Field g), select Remote mode
by typing the two keys MULT CODE 9. If the terminal is not in
Programmer mode (Field h), select Programmer mode by typing
the two keys MULT CODE U (note - upper case U)
4.Select the appropriate duplex setting (Field c). The factory
default is Half Duplex. If this setting is correct proceed to
step 5. Change the duplex by one of following [sic] two key
sequences:
MULT CODE 8 (Full Duplex)
MULT CODE * (Half Duplex)
Hint the following manufacturers are usually Half Duplex ....
[list of bankrupt manufacturers follows]
5.Select the appropriate parity setting (Field e). The factory
default is noe (not parity bit is sent). If this is
correct proceed to step 6. To change the parity type one of
the following three key sequences:
MULT CODE P Space (none)
MULT CODE P ! (Even)
MULT CODE P " (Odd)
MULT CODE P # (Mark)
MULT CODE P $ (Space)
6.Select the appropriate Baud Rate setting (field b). The
factory default setting is 300 baud [!] If this setting is
correct proceed to step 7. To change the Baud Rante type one
of the following three key sequences:
MULT CODE O Space 50
MULT CODE O ! 75
MULT CODE O " 110
MULT CODE O # 135
MULT CODE O $ 150
MULT CODE O % 300
MULT CODE O & 600
MULT CODE O ' 1200
MULT CODE O ( 1800
MULT CODE O ) 2000
MULT CODE O * 2400
MULT CODE O + 3600
MULT CODE O , 4800
MULT CODE O - 7200
MULT CODE O . 9600
7.Select the appropriate stop bit setting (Field d). The factory
default setting is two stop bits. If this is correct proceed
to step 8. To change the number of stop bits type one of the
following four key sequences:
MULT CODE Space < ! (One stop bit)
MULT CODE Space < " (Two stop bits)
Stop bits are usually set to two for baud rate of 300 or
below and otherwise are set to one.
8.Once you have achieved communications you can store these
setting permanently in the terminal by typing the three
character sequence MULT CODE Space C
(More information on various video-display terminals may be obtained by
anonymous FTP from site CS.UTK.EDU in the directory /pub/shuford).
--
....Richard S. Shuford | "If a man loudly blesses his neighbor early
....shuford@cs.utk.edu | in the morning, it will be taken as a curse."
....BIX: richard | Proverbs 27:14 NIV
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Path: arc1-ca.pugleaf.net!sparky!uunet!darwin.sura.net!utkcs2!shuford From: shuford@cs.utk.edu (Richard Shuford) Newsgroups: comp.terminals Subject: Answers to Frequently Asked Questions Followup-To: comp.terminals Date: 30 Jul 92 01:22:15 GMT Organization: University of Tennessee, Knoxville--Dept. of Computer Science Lines: 176 Sender: shuford@cs.utk.edu Distribution: world Message-ID: <l7eh27INNfql@utkcs2.cs.utk.edu> NNTP-Posting-Host: duncan.cs.utk.edu Summary: FAQ Keywords: terminals, video display, FAQ