User guide

MS-DMT Guide v1.04

Released 05-30-2014

“ReSend” - Grabs the last message sent using by the 3 party software via the Data Port and

paste is into the Outgoing Message window for editing and resending.

Status

“MODE” – This status window displays the current selected transmit mode is displayed. It

follows the mode selected in the Common panel. For MS110A the default TX mode when the

program is run for the first time or when the DMT.DAT file is missing or corrupted is 600BPS

LONG. The range of 110A TX data rates are: 75bps (compatible with S4415 Robust), 150bps,

300bps, 600bps, 1200bps, 2400bps coded for FEC and SHORT or LONG interleaver and 4800bps

uncoded, which has no FEC or interleaver support.

“STATUS” – This status window displays the current transmit state, at present for MS110A the

states displayed are IDLE or TRANSMIT and BUFFERING. When the Data Port is active and

receiving a message to transmit BUFFERING with flashing arrows “>” will be displayed as data is

being buffered to send, as all data must be buffered before sending, this can take some amount

of time when exceeding 1K message packets. If use of an external terminal is made that does

not break up the message into packets, the buffering time will encompass the entire message.

NOTE: It is planned to undertake a rewrite of the modem interface in support of data port operation

whereas all data is buffered into packets with the unknown sync data for transmit in real time in the

same way as with hardware modems vs. all the data requiring buffering before sending.

Outgoing Message Window

The “Outgoing Message Window” supports entering or pasting of printable ASCII characters

only. A message can be typed or pasted into the bottom “Outgoing Message Window” and is

then sent by clicking on the "Send" button. When pasting messages be sure that the content has

no non-printable characters (below ASCII 32) or extended characters (above ASCII 127). It is best

to only copy and paste from an ASCII editor such as Notepad or Wordpad. All messages must be

formatted using hard carriage return/line feed insertion in the body of the message by use of

the ENTER key as the Word Wrap feature of those editors is a visual within those programs only

and does not insert the required control characters in the text. Anything being copied from

another source should first be pasted into Notepad and saved and then reopened to strip any

undesirable content.