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PSION Series 3/3a palmtop FAQ part 4/6

This article is a collection of information on the Psion Series 3(a) palmtop computers. It should be read by anyone intending to post to the comp.sys.psion.* newsgroups.
Archive-name: palmtops/psion/series3/part4
Version: $VER: Psion FAQ v2.6
Posting-Frequency: monthly

part 4

   See part 1 for complete table of contents of this FAQ (including this

  6.1 With an IBM or clone
    6.1.1 PsiWin (by Mark Gould)
   PsiWin is a package for PCs running Microsoft Windows (in all its
   current incarnations - 3.1, 3.11, for Workgroups, NT and 95). It
   allows the Psion 3a (or 3 - although this is slightly more limited) to
   be connected to the PC and for the filesystem of the Psion to be
   manipulated in exactly the same way as in Windows File Manager.
   Drag-and-drop copying is possible, as well as conversion of files
   between Psion app formats and Windows program formats (Agenda
   conversion is only possible from the 3a format). It is also possible
   for 3a users to use the True-Type fonts resident on the Windows
   machine when printing. Finally, there is a Windows version of Psion's
   built-in Database application. PsiWin normally comes with the PC
 What if I don't have Windows?
   The standard software for connecting to DOS machines, RCOM, is
   included with PsiWin. There may also be some RCOM packages available
   in stores for those who don't want to buy PsiWin at all. See later for
   other platforms.
 What if I already have a 3-Link cable?
   It is possible to buy PsiWin without also purchasing the 3link. It
   should be available in stores, but if all else fails, contact Psion
   directly. If you bought your 3-Link cable just before PsiWin came out,
   you might even be entitled to a free copy (contact Psion)!
 What conversions will PsiWin do?
   The following file types are currently supported:
   Psion Agenda conversions to and from:
          Lotus Organizer v.1.0
          Act! v.2.0
          Schedule Plus
   Psion Data conversions to and from:
          dBase III and IV
          Lotus Organizer 1.0
          Comma separated values
          Tab separated text
   Psion PIC format to and from:
          Windows RGB Bitmap
   Psion Record (.WVE) to and from:
          Windows sound (.WAV)
   Psion Sheet to and from:
          Quattro Pro for Windows
          Works for Windows spreadsheet
          Lotus 123 (.WK1 and .WK3)
          Excel 4.0 and 5.0
   Psion Word to and from:
          Text (Windows ANSI and codepage 850)
          Rich Text Format
          Word Perfect 5.1, 5.2 and 6.0
          Works for Windows WP 3.0
          Word for Windows 2.0 and 6.0
          Ami Pro 3.0
        I can't run the Psion Manager - it produces a General Protection
      Fault. What's the matter with it?
   Early PsiWin boxes did not indicate that the minimum requirement to
   run PsiWin was 4Mb RAM. Attempting to run it on a machine with less
   than this will cause a GPF. The boxes now give the correct
   Alternatively, it may be the case that you are not running Windows in
   enhanced mode. This is necessary. Some laptops don't run Windows in
   enhanced mode by default. In order to enable enhanced mode, type "win
   /3" at the DOS prompt.
 Why is there no conversion for Schedule+ in Windows NT?
   Because Psion have not written it yet.
 Why is there no conversion for Schedule v.7?
   Because Microsoft have not released its format yet.
 How do I convert Psion files to a format which is not supported
      by PsiWin?
   PsiWin is designed to allow third-party developers to write their own
   translators for integration into the package. There is a program
   called available on CIX for this purpose. It will be made
   available more generally soon.
 Why is there no Windows version of the Agenda?
   Perhaps the most requested addition to the PsiWin package is a Windows
   version of the Agenda, for those who do not have a diary program on
   their PCs (or who do not trust the conversion process). Psion say they
   decided not to include such a program for a variety of reasons. The
   justification for including the Windows Database Manager was that
   people could take advantage of the larger keyboard and screen of their
   PCs to enter large amounts of data. This was not thought to be an
   issue for Agenda users. Simply, Psion had to make a number of choices,
   and in their judgment a Windows Agenda was a lower priority than other
   From Matthew Powell,
   RS Components (tel. 01536 201234 in the UK) used to advertise an
   Agenda program "compatible with the Psion" for Windows. They included
   a screenshot and it looked pretty horrible. Anyone who has access to
   their catalogue could look for it - it was on the same page as the
 Why can't I access the PC drives from the Psion?
   This is a problem for those who use the option in Agenda to tidy to a
   file on a remote PC (amongst others). The answer is hidden away in the
   help file, which says the following:
     If you want to access PC drives from your Psion (they will appear,
     in dialogs, with "REM::" before their drive letter), edit the
     PSIONPRC.INI file in your "Windows" directory, and remove the "-x"
     from the end of the following line:
     engine=prcenwin.exe -x
   I'm having difficulty printing from my Psion through Psion
      Print. What's wrong with it?
   On some setups using early versions of PsiWin, it wasn't possible to
   print to certain network printers, or just the first page of a
   document was printed. Psion released a file to fix this called, which is available on CIX and Compuserve as well as at
   the site maintained by the moderator of comp.binaries.psion
   ( This site has the file as
   it was posted to comp.binaries.psion, in five parts. Frontiernet also
   has a copy of this file in the pub/psion/addon directory.
 Why can't I reconnect to the Psion once I have disconnected it?
      (by Angus Rae)
   I posted a comment about a problem I was having with PsiWin locking up
   my machine. I had originally blamed it on my video card (it's a
   Diamond Stealth 32, and the usual mantra is "if it's named after an
   aircraft or a snake it's probably causing the crash") but after
   WinLink3 gave me the same problems I started wondering, and
   remembering some problems I was having with Trumpet Winsock a while
   back. So, a quick trawl through Microsoft's Knowledge Base revealed
   that the serial port drivers for Windows for Workgroups have a few
   little problems. (A few big problems IMHO, but your mileage may vary.)
   It seems to apply to machines with higher specification 16550 UARTs on
   local buses. I have 16550AF UARTs on a VESA local bus. There is a fix;
   replace the file SERIAL.386 with a different version. I believe, but
   don't quote me on this, that the version from Windows 3.1 would do,
   but the file WG1001.EXE in the Microsoft SoftLib has a copy which
   works, which you can get to from If you do a
   search in the Windows Knowledge base for WG1001 and appnote you can
   get the full info.
 My conversions from Agenda to Lotus Organiser cause an
      Application error. What is wrong?
   It has been suggested that one source of such problems is an out of
   date copy of a file called ctl3dv2.dll. A nice man at Psion has
   suggested the following approach:
   Currently we sneak a bonus copy of ctl3dv2.dll onto disk 1,
   uncompressed, for just this scenario, but it's not on all versions. If
   you don't have it, then I guess the best thing is to close all Windows
   apps, rename your current ctl3dv2.dll out of the way, then reinstall
   PsiWin and see if that solves it.
   If it doesn't, then I'm afraid it's going to come down to some fairly
   standard testing to narrow it down to:
     * what if you use different date ranges or entry types on the
       "Convert what" dialog (though it sounds unlikely to me)
     * do Database conversions work (as they use a similar "convert what"
     * do your Organizer and Lotus INI files look OK in \windows
     * does it happen with nothing else running in Windows
     * can you change anything about the setup (eg try it on another PC)
   If none of these work, then check the answer to question
 I have another problem with PsiWin
   Many problems with PsiWin are caused by having 32-bit file access
   enabled. Try disabling this (in the Control Panel, Enhanced, Virtual
   Memory). If the problem recurs, try asking in comp.sys.psion.apps (or
   Psion Technical Support).
 Serial port tip (from Mike Dolan)
   Under the Lose95 Control Panel, check the COM port settings. Ensure
   that if you have 16550 FIFO buffers, the receive buffers are set to
   maximum, and the transmit buffers are set to minimum.
    6.1.2 MCLink
   MCLINK was the software which comes with Psion's 3-Link cable. It runs
   on the host PC (at the DOS prompt) or Mac to provide data transfer
   capability. When MCLINK is running on the PC/Mac, the Series 3 can see
   host drives as remote drives, and can access the data on them.
   Similarly the command interface in the MCLINK program can be used to
   access or copy data to/from the Series3. MCLINK can also be used to
   print Series 3 data by copying it to REM::C:\LPT1. MCLINK works under
   OS/2 and under the DOS emulator with Linux (Free Unix on PC). It had
   reliability problems under Windows for Workgroups 3.11. It supports
   only COM1 and COM2 ports.
    6.1.3 SLink
   SLINK is a cut-down version of MCLINK, provided by Psion. It may work
   in non-standard configurations where MCLINK will not. Since it is
   smaller, it may cure space problems.
    6.1.4 RCom
   Was Psion's replacement for MCLINK. It is available at the IC archive.
   It provides all the capability of MCLINK and adds a range of other
   features, including handling of Rich Text format files; backup,
   compress and equalize functions, a large range of DOS-like commands,
   from which scripts can be generated, and a Windows interface. Though
   it's documentation claims that RCOM is "more like a network
   connection", this is not yet a reasonable claim. When RCOM is running,
   the host machine can only see the Series 3 via the RCOM interface.
    6.1.5 RFM
   RFM is also available from the archive (RFM110); it is in beta
   release. RFM installs a TSR on the host PC; a small process is also
   run on the Series 3. When set up, the system makes the Series 3 drives
   look completely like PC drives, and vice versa. PC file management
   tools can be used with great convenience to manipulate files on both
   machines transparently. RFM cannot be installed or removed under
   Windows, but will run under Windows. RFM will lock your machine up
   occassionally; in this case, turn the link off at the Series 3. Rest
   the PC after the link icon disappears from the Series 3, or you may
   need to reset both machines.
   From Roman Habrat: It is possible to install, use and uninstall RFM
   under Windows. Two things need to be done:
     * use DOS SETVER ("setver rfm.exe 6.20") to set the DOS version
       number reported to RFM (required for Win 95 only since it uses DOS
     * prevent RFM from detecting Windows (For Win95: check the option
       in:DOS session Properties ->

         -> Program ->
           -> Advanced ->
             -> "Prevent MS-DOS-based program from detecting Windows")

  6.2 With an Amiga
   For a long time, Amiga users had to resort to using the X/Y-Modem
   protocols to transfer files back and forth with their Psions... that
   was before Oliver Wagner gratified us with his great program:
   AmigaNCP. To be able to use this program, you will need the PC version
   of the cable (3-Link) which connects to your standard RS232 serial
   port of your Amiga. You cannot buy the PC 3-Link without the PC
   software anymore (PsiWin) but you can use an Acorn 3-Link cable which
   is exactly the same and should cost less than the PC version.
   AmigaNCP fully implements Psion's NCP protocol and thus allows you to
   see your Psion as a remote drive of your Amiga and vice versa! File
   transfers are now as easy as drag and drop. The program also contains
   a simple text transfer mode which allows you to directly convert Psion
   ASCII files to Amiga/UNIX type; it supports multi-serial cards and
   needs WB 2.0+. AmigaNCP is shareware and available from the IC FTP
   site or any Aminet site in the comm/misc directory. There is also a
   WWW site devoted to AmigaNCP where you can always get the latest
   version and read more about it:
   This is definitively a must for all Amiga users!
    6.2.1 Graphics support on the Amiga
   There is a progam called "ViewPic" (by Marko Schuster) written in GFA
   basic and available on any Aminet site. It supports black and grey and
   even works with the stone age WB 1.3! Doesn't support multiple
   pictures in a single file.
  6.3 With a UNIX machine (by Edwin Klement)
   Using the Psion's 3-Link cable data transfer between a Psion and a
   UNIX workstation can be provided in several ways. One way is to use
   NFS capabilities to mount the Psion only to the workstation, where it
   is attached to via the serial cable. This is an easy way to capture
   filesystem operations (e.g, change directory, list contents of
   directory, move and copy files) in a program. All the UNIX commands
   can be used on the PSION file system. Supported architectures are
   SunOS 4.1.3, HPUX 9/10, Linux, AIX 3.2, Solaris 2.3/2.4/2.5, and SGI
   IRIX 5.3/6.2. The software you need to run in order to mount the PSION
   via NFS can be found in several PSION archives or look for the latest
   "p3nfs" version directly on it's home site:
   There is another proprietary program for Sun workstations that allows
   transfer of files and a limited number of file operations over the
   serial cable. It uses a proprietary protocol and has a command line
   interface. There is a facility for automatically filtering files, a
   backup utility and a mechanism for supporting scripts to automate
   frequently used operations. This program called "suncom" was written
   by Tim Graves at This program is provided AS
   IS, no warranty of ANY kind is provided either by Tim Graves or Sun
   David MacKay has written an article concerning
   his experience with hooking a psion up to a workstation. It's located
  6.4 With a Macintosh (information taken from Paul DuBois' WWW site, see last
  question for address)
   You will need the Mac version of the 3-Link cable. This is almost the
   same as the PC version, only the plug which goes into your Mac
   changes; you can even make an adapter yourself if you already have the
   PC version. For the software, you need "Psion Link" or "MCLink" for
   Macintosh. Both come with the Mac 3-Link cable.
    6.4.1 Psion Link
   Psion Link allows you to see Psion disks from the Macintosh and
   transfer files between machines using drag and drop. (You do this
   within Psion Link's windows; the Psion doesn't appear as a volume on
   the desktop.) It runs on any Macintosh with System 6.0 or later.
    6.4.2 MCLink
   MCLink allows you to see Macintosh disks from the Psion, so that they
   become, in effect, part of the Psion file system. You use Psion file
   operations to access Macintosh files. MCLink is described in the "3
   Link (RS232)" manual. There are also some documentation files on the
   MCLink disk. The current version is 1.41F. MCLink runs on Macintoshes
   with System 6.0 or later. (Some earlier versions, e.g., 1.20, do not
   run under System 7.)
    6.4.3 Choosing and Using a Macintosh Port
   There are two kinds of serial ports on a Macintosh, distinguished by
   the icons with which they are labeled:
     * A phone handset icon indicates a modem (or phone) port.
     * A printer icon indicates a printer (or AppleTalk) port.
   Some Macintoshes have a combined modem/printer port (e.g., Duos, and
   the 500 and 5300 series of PowerBooks). Such ports are labeled with
   both icons.
   Both Psion Link or MCLink allow you to select which port you want. If
   you have a combination modem/printer port, you need to tell Psion Link
   or MCLink to use the modem port, not the printer port.
   To establish successful communications, the Macintosh port you want to
   use must not be in use by something else - make sure you're not
   running any software that wants to control that port; especially make
   sure AppleTalk is off if you use the printer port!
    6.4.4 Connecting
     * Make sure the Psion is turned off and plug in the 3Link cable. The
       cable connectors on the ends of the Macintosh adapter are similar,
       but if you look closely you'll see that they're different. The end
       with the "crossbar" inside the connector goes into the 3Link pod;
       the other end goes into your Macintosh.
     * Turn on the Psion and enable the link (Psion-L from the System
     * Launch the Macintosh communications application (Psion Link or
       MCLink). Psion Link plays a chime when a connection is
       established. If you hear a short "plink" sound, the connection
       failed. MCLink doesn't make any sound but its status window says
       "Link Established" when it detects a connection.
     * Perform whatever data transfer you have in mind.
     * Quit the Macintosh communications application.
     * Disable the link from the Psion System screen.
     * Turn the Psion off and unplug the 3Link cable.
   If you do the steps in some other order, you may get an unresponsive
   machine. For instance, if you plug the link cable into your printer
   port, enable the link on the Psion, and then turn off AppleTalk on
   your Macintosh, you may have to reboot the Macintosh before Psion Link
   or MCLink will establish a connection properly.
    6.4.5 What file conversions do Psion Link and MCLink do?
   Essentially none.
   Psion Link recognizes certain files as "text" if their names end with
   any of a given set of suffixes (e.g., ".txt"). For such files it
   converts line ending characters to whatever is appropriate for the
   destination machine (CRLF for Psion, CR for Macintosh).
   In general, to transfer a file between Psion and Macintosh
   applications, the file must be saved in a format understood on both
   machines (RTF for Word is an example).
   An exception though: recent versions of GraphicConverter (shareware)
   will open and convert Psion PIC files. It's available from the usual
   Mac shareware sites (info-mac and its mirrors, for example).
    6.4.6 Other questions
   You can find more info on the web at:
  6.5 With an Atari (by Daron Brewood)
    6.5.1 General.
   The Psion palmtop computers can be connected to all Atari ST
   compatable computers ; from the Atari 520ST to the TT and Falcon
    6.5.2 Linkage Hardware Required.
   The 3-Link (PC) serial lead will be needed to connect the Psion's
   serial port to the 25-pin serial connector on the back of the Atari
   machine. No other additional hardware is needed.
    6.5.3 Port Speed.
   It should be noted that the basic unmodified ST computer can only
   handle baud rates of 9600bps, wheras the STe/TT/Falcon computers can
   communicate at the Psion's maximum speed of 19200bps.
    6.5.4 Software available for interfacing the two computers.
   There are two main packages designed to interface the Atari computers
   to the Psion series 3/3a, these are:
 S3-ST v2.00 by Keith Baines.
   An extract from his documentation file can be found below:
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

                         S3-ST Version 2.00

                 File Transfer and Utilities Program

        Copyright (c) Keith Baines, March 1993 - August 1995

S3-ST provides a graphical file-manager with features familiar from
the Atari GEM desktop. You can use it to:

  -   Copy files from the Atari to the Psion and vice-versa;

  -   Make regular full and incremental backups of your Psion;

  -   View files on either machine in a scrollable window on the
      Atari screen;

  -   Print files on either machine using a printer connected to the
      Atari's printer port;

  -   Delete files on either machine;

  -   Create new folders (or sub-directories) on either machine.

S3-ST uses a small companion program, STCOMMS.OPA, which can be
installed as an application on the Series 3 or 3a. (The Series 3a
version uses the enhanced facilities of that model.) The Psion
3-Link(PC) hardware is required.

In addition, the package includes DBFVIEW, a Desk Accessory for the
Atari (there is also a normal program version), which can be used to
browse through files created with the Series 3/3a Data application
and to copy information from them via the GEM clipboard.  For
example it can be used to copy names and addresses into a word
processor document on your ST.
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

   Keith can be contacted at the following address: Keith Baines, 8
   Lumley Court, Denmark Avenue, London, SW19 4HQ, UK
 TRAFIC version 2.2 - (c)1995, Club Psion Series 3
   This program is keyware and will not allow files to be copied across
   machines without the software first being activated by a user key. The
   interface seems very much like 'Kobold' and '2in1' on the Atari's.
   I can say little about it's features due to the documentation provided
   with it being written in French. However the authors can be contacted
   via the Club Series 3 (see "User Groups") attn: Laurent PLOMB.
      6.5.5 Support for the Psion machines in the Atari world.
   Network ST (NeST), the worlds largest fidonet(tm) technology network
   in the world (for Atarians) supports the Psion via:
     * An Internet gateway to the COMP.SYS.PSION.* newsgroups via the
       U.COMP.SYS.PSION.* message echo.
     * An Internet gateway to the COMP.BINARIES.PSION newsgroup via the
       U.COMP.BINARIES.PSION message echo.
     * Support within the N.MISC.PALMTOPS message echo.
     * Distribution of files into the Atari file networks via the
       90.SUP.PSION file echo.
     * Archive storage of Psion files (available by ftn file request
       only) at 90:90/0.0@nest.ftn.
   For further information concerning NeST (Network ST) please contact
   Daron Brewood via:
     * Email: NeST: 90:100/106.0@nest.ftn
     * CIX: dbrewood
     * InterNet:
     * SnailMail: Daron M. Brewood, 7 Crescent Road, Portwood, Stockport,
       Cheshire, SK1 2QG.
    6.5.6 Graphics Support on the Atari.
   There is no current program on the Atari computers which can create or
   view .PIC files from the Psion, but there is a program to use to
   convert true colour JPG, and 256 colour GIF files, into .GIF's that
   take little space on the Psion. This is GEM-View by Dieter Fiebelkorn,
   and is highly recommended as it will quickly dither any picture
   through at it, and if steinberb dithering is used the end result is a
   very small 2-30k .GIF file, that will convert perfectly on the Psion
   to give a minimum sized clear picture. Very useful if you wish to
   carry family photo's round with you on the Psion, or to carry round
   proof graphic outlays.
  6.6 With an Acorn Archimedes or Risc PC (by Nick Craig-Wood)
    6.6.1 ALink from Acorn
   This is a package including the equivalent of the 3-Link for Acorn
   machines, the A-Link and some software to run on the Acorn.
   The software runs as a filing system on the Acorn machine and allows
   you to use the Psion just as if it was a (rather slow) hard disc. It
   does not allow the Psion to look at the Acorn drives though.
   It comes with a set of conversion applications for Spreadsheet, Data
   and Word files into native Acorn and generic (eg CSV) formate.
    6.6.2 PC programs
   All of the available PC programs can be used under the hardware or
   software PC emulators provided you can run the correct version of
   Windows or DOS that these programs rely on.
   Note that the A-Link has a slightly different wiring to the 3-Link.
   The A-Link will work fine with the PC software, and plugged into a PC,
   but the 3-Link will not work with the Acorn software. All that is
   different is the wiring from the 'soap' to the 9-way D-Type connector.
    6.6.3 3Link-Acorn cable (by Toby Smith)
   Cable wiring for 3link to Acorn (make up of Alink cable).
        PC Connector        Acorn connector
        (9pin male)          (9pin female)
        DCD 1 (not used)         1--|
        RxD 2--------------------2  |
        TxD 3--------------------3  |
        DTR 4--------------------4--|
        GND 5--------------------5
        DSR 6-----\ /------------6
        RTS 7------X-------------7
        CTS 8-----/ \------------8
        RT  9 (not used)         9

        (8 and 6 swapped, 1 & 4 connected at Acorn end)
        (With thanks to Jonathan Allin of Acorn)

   No conversion is needed for using an A-Link on a PC (apparently)
  6.7 With a serial modem
   Psion provide 3FAX, which is a hardware and software add-on offering
   FAX capability and a data modem operating at 2400 baud.
   A separate shareware fax program has been released by Walter Wright
   which should work with all class 2/2.0 fax-modems; see the
   "programmers on the web reference table" for Walter's URL.
   The 3-Link cable/software offers a standard serial interface through
   which standard modems can be connected, transferring (serially) up to
   the Series 3a limit of 19.2K (9.6K for the Series3).
   Keep in mind that if you want to use a modem with a higher speed than
   the serial limit (19k2), you might get buffer overflows. No one has
   reported any experiences yet. If you got such a system working, I
   would like to hear from you (and I'm sure the others as well ;-) .
   Paraphrasing John Wodehouse:
   The Serial 3link cable is a null modem connection, with a male 25 way
   end. To work with a modem, you need to "un-null" the modem wires, so
   you have a straight through link. The wiring of the plug is below.
   Note that pin 8 is not just "in the air", but connected to pin 6.
   Choose plugs with whatever gender you need.

                           2 ------------- 3
                           3 ------------- 2
                           4 ------------- 5
                           5 ------------- 4
                           6 -+----------- 20
                           8 -+
                          20 -----------+- 6
                                        +- 8
                           7 ------------- 7

   The harder part is correctly configuring the modem; each modem is
   different. You need to configure the modem and the Series 3/3a to
   handshake on RTS/CTS. I do not use Xon and Xoff for flow control with
   the modem; these characters are passed through to whatever is
   connected to the modem. Using this configuration, I can consistently
   operate the link at full speed with no problems.
   Also of interest, Klaus notes: The Psion Modem
   Adapter (cable), Partnumber 055856, is wired like this:

     Pin name    Pin number    Direction          DB-25
                  Mini-Din     Series3 - Other
      DCD             1        <-------------     8
      RD              2        <-------------     3
      TD              3        ------------->     2
      DTR             4        ------------->     20
      SG              5        --------------     7
      DSR             6        <-------------     6
      RTS             7        ------------->     4
      CTS             8        <-------------     5
      RI              9        <-------------     22
      FG            shield     --------------     1

   The Mini-Din connector pins are numbered as follows (as viewed from
   the wire side):

        9   8        7
        6   5   4   3
             2   1

   To help you get online easier, Steve Litchfield has written an article
   that's available on his web site as:
  6.8 With a PCMCIA modem
   TeleAdapt, a UK company, has released the "Modulette" hardware add-on.
   This equipment plugs in on one side to the 3-Link cable and offers on
   the other side a regular PCMCIA socket for any standard PCMCIA modem.
   The "Modulette" is also available from PSIOlogic in Germany; contact
   Michael Baas at or check out their web site at for more information.
   Psion has also released a self powered PCMCIA modem adapter. Check out
   their web site for more details.
  6.9 With a packet radio TNC
   If you want to work packet radio mobile/remote, your Psion will be
   just great because of it's small size. Adding a TNC (Terminal Node
   Controller) is just like adding a modem actually (that's what TNCs are
   in the first place!), so make the "un-null" cable first (as described
   in the modem section). Be sure to have a full cable with the CTS/RTS
   lines and set XFLOW OFF on your TNC as you should prefer ably use
   these hardware lines instead of software XON/XOFF codes. As for a
   specific packet program, you're in luck: Roger Muggleton (G0HZK@GB7WIR
   on packet) made a nice program called Pocket Packet. The program is
   available from the usual FTP sites or directly from Roger's homepage
   (see WWW section). Now if someone could just write a little BayCom
   driver program...which I personally doubt is feasible but you may
   never know!
   For more information concerning packet radio and amateur radio in
   general, I would recommend you the* Usenet
  6.10 With a cellular phone
   Psion have released the "Telenote" program and cable which allows you
   to send and receive SMS messages with a Nokia 21xx cellular phone.
   Al Sutton is also working on a SMS program interfacing with the Psion,
   see the WWW section for a link to his home page on the web for more
   If you want to use your cellular phone as a modem or a fax modem, you
   need to get the data expander and PC card for it from Nokia directly.
   Except of course if your mobile phone has an inbuilt modem! You should
   then be able to directly connect it with your Psion.
  6.11 Via the IrDA port (3c/Siena)
   Pete Bentley has kindly made an IrDA FAQ and it's available on his
   homepage at:
   Note: IrDA transfers are only possible with the 3c/Siena computers.
  6.12 Terminal emulation
   The 3-link cable software includes a dumb terminal emulation. VT100
   emulators are also available. There are some at the IC archive:
     * VT100 emulator from Psion GmbH
     * VT100 emulator from Widget
   (these are crippled versions of commercial products).
   Nfsc is a fully-capable VT220 terminal emulator for the Psion released
   under the GNU general public license. It supports all modem speeds and
   Psion font sizes. One drawback is that there is no scripting language.
   A simple work-around is to set your modem so that it doesn't hang up
   when the DTR line is off. You can then use the robust scripting of
   Script (built into the CommsLink) to automate dialing and loging in,
   then simply exit and launch Nfsc. Contact Benjamin Teitelbaum
   ( for more information. Nfsc is available at:
   There are also free/shareware/commercial alternatives: FreeVT (File: or PComm (commercial; Psion)
  6.13 TCP/IP stack
   The official Psion TCP/IP stack is under way and will be released with
   PsiMail Internet. No definitive dates have been set, but it seems most
   probable to appear mid 1997.
   End of part 4/6
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    All pages coming from
    (and this is one of them!) are copyright 1996 Daniel Pfund.
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