TTY INTERFACE
FREQUENTLY ASKED QUESTIONS (F.A.Q.)
Copyright (C) 1993-2002, SKOTFRED.COM
All rights Reserved
What is the latest version
currently available ?
MS-DOS version 1.51b was
released on 03MAR98 fixing a problem that caused errors for new installations, did not
effect upgraders from previous versions.
Also, A Windows version is currently in development.
Can I Use TTY INTERFACE and
a modem to communicate with another person using a TDD machine ?
. MAYBE, while TTY INTERFACE
was originally designed to use a computers serial COM ports and not a modem, it may be
capable of this function. TTY INTERFACE and TDD machines do share the same language
(ITA-2) Baudot. While it is relatively untested, I have started to incorporate
TDD/modem functionality into the program. If you would like to try this, please
email me for detailed instructions.
Why does the VERSION HISTORY
PAGE show a version newer than the one available for download ?
. The TTY-HELP.TXT
and TTY-INFO.TXT files available on the website indicate the
status of changes currently being added to the next version. If you'd like a pre-release,
just ask.
. What is TTY TOR STAMPING ?
MS-DOS Version 1.47b added
this feature. The program will now generate a TOR for the RECEIVER and PARTITION portions
of the program. While the default setting is for this to be ON (Yes), you may need to turn
it OFF to remain fully compatible with external programs such as MDU.
BAUDOT (ITA-2) CODE EXPLAINED… ================================
Binary Decimal LTRS FIGS
-----------------------------
00000 0 BLANK BLANK
00001 1 E 3
00010 2 LF LF
00011 3 A -
00100 4 SP SP
00101 5 S BELL
00110 6 I 8
00111 7 U 7
01000 8 CR CR
01001 9 D $
01010 10 R 4
01011 11 J '
01100 12 N ,
01101 13 F !
01110 14 C :
01111 15 K (
10000 16 T 5
10001 17 Z "
10010 18 L )
10011 19 W 2
10100 20 H #
10101 21 Y 6
10110 22 P 0
10111 23 Q 1
11000 24 O 9
11001 25 B ?
11010 26 G &
11011 27 FIGS FIGS
11100 28 M .
11101 29 X /
11110 30 V ;
11111 31 LTRS LTRS
| ASCII | American Standard Code for Information Interchange; see ITA-5 |
| BAUDOT | see ITA-2 |
| BASIC | Beginners All Purpose Symbolic Instruction Code |
| BCST | Broadcast |
| cc:Mai | E-Mail Program used to send messages via STU-III Secure Modem |
| DB25 | 25 pin connector usually conforming to RS-232 standards |
| DSA | Data Set Adapter, a modified Line-Level-Converter |
| DTG | Date Time Group |
| ELF | Extremely Low Frequency Broadcast (OR-279) |
| EOM | End Of Message, (2 Carraige Returns, 8 Line Feeds, 4 N's) |
| ITA-2 | International Telegraph Alphabet number 2, comprising 5 data bits |
| ITA-5 | International Telegraph Alphabet number 5, comprising 7 or 8 data bits |
| MDS | Message Dissemination System, LAN version of MDU |
| MDU | Message Dissemination Utility |
| MIL-188 | Military standard where 0=Negative 3-6 VDC, 1=Positive 3-6 VDC (?) |
| M-T-V | Message Traffic Viewer (by Les Logan) |
| OTCIXS | Officer in Tactical Command Information Exchange Subsystem |
| RS-232 | Civilian standard where 0=Positive 3-25 VDC, 1=Negative 3-25 VDC (?) |
| SSIXS | Submarine Satellite Information Exchange Subsystem |
| TADIXS | Tactical Data Information Exchange Subsystem |
| TTY | Teletype; generally a AN/UGC-136AX or AN/UGC-136CX |
| VALLOR | 50 Baud Submarine Teletype Broadcast (LF-HF), similiar to VERDIN. |
| VERDIN | 50 Baud Submarine Teletype Broadcast (VLF) |
| ZBO | List of precedences; {ref ACP-131} |
