USB to null modem cable

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  • scurders
    Junior Member
    • Apr 2008
    • 32

    #1

    USB to null modem cable

    Anybody know of any problems connecting to dreamup using the above cable? I get as far as being prompted to turn the dreambox on then...nothing, screen stays like that until i decide to disconnect or exit. Reading some vague stuff on other forums about usb ports not being the best for this but im using a laptop so ive no other choice. would really appreciate suggestions/opinions on this one as im gettin a bit annoyed to say the least with the lack of progress (its been nearly two weeks with basic channels).

    Cheers

    Scurders
  • Jaffa
    V.I.P. Member
    • Mar 2008
    • 1612

    #2
    They are hit and miss from what I have read, best to get a pcmia rs232 card on fleabay and that will do the job for you.

    I got that tip from Kaos so its sound.
    sigpic

    Comment

    • wayne.bradshaw3
      Newbie
      • Apr 2008
      • 7

      #3
      boy am i having problems i cant remember what i did to flash the box ive connected my null modem cable to pc and dreambox but i cant ive no idea

      Comment

      • smirnoff_rules
        V.I.P. Member
        • Mar 2008
        • 8603

        #4
        u need a programe called dreamup in downloads m8
        any information provided is for educational/experimental purposes only.

        Comment

        • Devilfish
          Administrator
          • Feb 2008
          • 7872

          #5
          I've just bought one of these to try and suss it out for folks.

          Remember you will still need a null modem cable to connect to the end of the usb - serial cable.

          Comment

          • teleboss
            Member
            • Apr 2008
            • 59

            #6
            Originally posted by scurders
            Anybody know of any problems connecting to dreamup using the above cable? I get as far as being prompted to turn the dreambox on then...nothing, screen stays like that until i decide to disconnect or exit. Reading some vague stuff on other forums about usb ports not being the best for this but im using a laptop so ive no other choice. would really appreciate suggestions/opinions on this one as im gettin a bit annoyed to say the least with the lack of progress (its been nearly two weeks with basic channels).

            Cheers

            Scurders
            I would suggest that you remove any other usb devices off the USB ports, Of course on newer machines rthe mouse and Kb are USB, I also find use the back ports on the machine, as on some machines the front ports are shared through a hub device.

            I bought a maplin Usb to RS232 converter and it works fine on all machines that I have, works with dreamup, are you sure its not your cable rather than the converter ?

            A proper Null modem cable is the following

            From back of connector solder side

            1 2 3 4 5
            o o o o o
            o o o o
            6 7 8 9


            DB 9 A to DB 9 B

            2 3
            3 2
            4 6
            5 5
            6 4
            7 8
            8 7

            Dont worry about grounding the shells or PIN 9, The Above cable works with dreambox, and while there are other varitations of a Null modem cable as in pins looped and so on this config works for me without any problems.

            Hope this helps

            Comment

            • teleboss
              Member
              • Apr 2008
              • 59

              #7
              Originally posted by Jaffa
              They are hit and miss from what I have read, best to get a pcmia rs232 card on fleabay and that will do the job for you.

              I got that tip from Kaos so its sound.

              if you can go USB its a better option, as most New Laptops are the new card bus standard, and its hard getting a laptop that supports PCMCIA.

              The cheap and nasty maplin converter works really well, USB to SerialD9 Male ZP43W 7096 19.99 stearling.

              I know there are cheaper converters, but at least if it does not work they will take it back.

              I have used the above on Sony Viao, IBM thinkpads and dell towers and laptops works evertime. This has been used on XP home and XP pro.

              Comment

              • scurders
                Junior Member
                • Apr 2008
                • 32

                #8
                Guys, its the cable!! just had a look at the description of what i bought and its not a null modem cable, Its a usb to RS232 serial cable!! very similar, my mistake!!

                Really appreciate the help though, im determined to crack this even if it does cost me my sanity!! thwarted at every turn so far...cant flash using FXP because i cant get IP of box because i cant access dreambox memory, then when i try and flash using dreamup i go and buy the wrong cable!! you gotta laugh! anyways its the weekend and im off to drink until my name turns to Oliver Reid!

                have a good one

                Scurders

                Comment

                • Devilfish
                  Administrator
                  • Feb 2008
                  • 7872

                  #9
                  All the usb to serial cables on ebay that I've seen has a 9 pin male connector on the end. You will still need to have a 9pin female to 9pin female cable to connect to that and then to your dreambox. I think .

                  I'll be able to confirm when I get mine in.

                  Comment

                  • thommo

                    #10
                    if its one of the cheap ebay jobs it wont work with a null modem cable, i tried every config in the book and some not in it , would it work? would it ~~~~.


                    i ended up taking the box upstairs as my tower has a port to plug the null straight in so didnt need the usb adaptor.


                    but on my travels ive come across this and everyone that has tried it says it works so it is correct info and will work.

                    "quote"

                    I had the same problem i could not get a connection until i took out my null mdem cable and used a straight rs 232 and it works fine, it seems that my USB cable is already wired as a null modem cable. you might like to try the same, I hope this is of some use.

                    "unquote"


                    as said confirmed working by everyone who tried it, and i can confirm if its one of the cheap ebay jobs like mine it prob wont work with a null.

                    Comment

                    • smirnoff_rules
                      V.I.P. Member
                      • Mar 2008
                      • 8603

                      #11
                      this is how l did it http://www.digital-kaos.co.uk/forums...11&postcount=3
                      any information provided is for educational/experimental purposes only.

                      Comment

                      • tinbox11
                        Newbie
                        • Apr 2008
                        • 15

                        #12
                        Looking through Maplin there are some converter to change the printer port (sometime referred to as parallel port) to serial port which works better than usb port.

                        Comment

                        • Dowie
                          Top Poster
                          • Apr 2008
                          • 119

                          #13
                          I bought one from maplins you need to go into device manager Ports and com ports it will then say comxx (xx being the com port of your usb serial cable) double click that and click advanced there is then a drop down box so you can change your com port number to the lowest number then in dreamup change that number to the same and voila ive done this tonight so i 99% that this works
                          Dowie
                          WAS MAR 2009 OCT 2012 AND NO PRICE INCREASE

                          Comment

                          • thommo

                            #14
                            Originally posted by Dowie
                            I bought one from maplins you need to go into device manager Ports and com ports it will then say comxx (xx being the com port of your usb serial cable) double click that and click advanced there is then a drop down box so you can change your com port number to the lowest number then in dreamup change that number to the same and voila ive done this tonight so i 99% that this works
                            Dowie
                            as post above says you do need to set it heres a quick thing i found which might help.

                            The default COM port setting for the USB to Serial connectors seems to be COM 5 but these programs tend to support only COM 1-4. You will need to change the COM port that your USB to Serial is using.

                            Do this:
                            Control panel->system->device manager-> hardware settings->Ports->"device" (the name of your USB to Serial should be here)->port settings->advanced->use COM x

                            Comment

                            • Dowie
                              Top Poster
                              • Apr 2008
                              • 119

                              #15
                              Yup thommo just one thing mine was com12 for some wild reason!!!!

                              Dowie
                              WAS MAR 2009 OCT 2012 AND NO PRICE INCREASE

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