Problem with my cable
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New member Username: Didi1972Canada Post Number: 3 Registered: May-06 | hi lk i tried to download bin from my laptop. the prob is i ve only db 25 or usb can i use a db 25 with a db 9 female u think it can work thks |
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Gold Member Username: EvadelparaisoPuerto Rico Post Number: 1086 Registered: May-06 | If you can get 25 to 9 db female you got it! | |
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New member Username: Didi1972Canada Post Number: 4 Registered: May-06 | ok thanks eva btw, i tried to download the bin file 277t,but nothg happened i didnt find the uilities so as to run the program thanks |
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Gold Member Username: LklivesPost Number: 3544 Registered: Jan-06 | U cannot use either db25 or USB...its rare when a USB port will work..Db 25 printer port will NEVER work! | |
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Bronze Member Username: HommosPost Number: 19 Registered: Jun-06 | Lk ur a moran | |
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Bronze Member Username: TadonDover, NJ Usa Post Number: 57 Registered: May-06 | Cable: a. 232(9pins) : p2(Tx) -- p3(Rc)---p5(Ground) p7(handsake) b. 232(25pins) : p2(Tx)---p3(Rc) ---p7 (ground) p4(handsake) C. Null : just cross over 2 --> 3 3---> 2 *** PC watchs a ground for understand signal Db9 pins and Db 25 pins are different ground connection ---> pc & Receiver can not handsake ---> can not download [a, b, c] have a diffrent connection ---> PC can not talk/or can not handsake with Receiver that why you guy need seclect correct a cable . |
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New member Username: XstaterPost Number: 1 Registered: Jun-06 | Hi there Bui Le. You seem to understand quite well the cable stuff. I just want to ask you and anybody a quick question. I know that to program a Pansat 2700 I need a null modem cable and I got it with the box and it works since we programmed the box with a desktop computer of a friend of mine. Now my question is this one: Since I only have a laptop and everybody tells me that I should not use a usb to db9 adapters (and bying a simple male to male db9 adapter did not work) I am wondering if I could do a 25 pin to 9 pin adapter myself just by soldering or conecting p2-p2, p3-p3 and p5-p7 (since I already have a null modem cable and p2 and p3 are already crossed in the cable)? Thanks and I will appreciate the opinions. |
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Silver Member Username: HardrockstrikerPost Number: 115 Registered: Apr-06 | Chances are a 25-pin db on any laptop is for printer, therefore, you cannot use it. You can use usb, but.... 1. you will need usb-to-serial converter to connect serial cable to your laptop 2. (this is important) the driver for usb-to-serial converter must be assigned to one of comm ports 1 to 4, but nothing higher than 4. Reason is the most bin loader programs recognize only comm ports 1 to 4. You will have to check under your device manager to verify to which comm port usb-to-serial converter is assigned. |
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Bronze Member Username: TadonDover, NJ Usa Post Number: 58 Registered: May-06 | Ivan, Some how Receiver can not understand PC. I don't know why (may be due to Receiver OS)therefore DB 25pins to 9pins NULL , cannot use . But If you can do a soldering . You can try, do like a LAB . Include a attachment file for you reference when doing your LAB .
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New member Username: XstaterPost Number: 2 Registered: Jun-06 | Thanks for the ideas guys, I will try to look for either a USB to serial adapter or a pcmcia to serial card for my laptop before I try soldering and making my own adapter. I am very doubtfull that the printer port on my laptop can be used for serial comunication. But if I remember correctly I believe that is the port I used when using Laplink or not? Anyways, thanks and if I find a solution (other than buying a desktop with serial port included) I will let you know. Does anybody program their boxes with laptops? Can those people tell us what is working for them? Thanks. Ivan. |
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Silver Member Username: HardrockstrikerPost Number: 118 Registered: Apr-06 | I use my laptop. I bought a Triplite U209-000-R usb-serial converter. Driver installed no problem and automatically mapped itself to COM4. |
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New member Username: Jonas2410Post Number: 1 Registered: Apr-06 | can i convert null to db9 with some type of adapter if yes where can i get it if not where can i get a db9 straight. i have both a 2700 and a 2500 thank you. | |
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Silver Member Username: HardrockstrikerPost Number: 121 Registered: Apr-06 | There are adapters for everything. But your best bet is to spend $15 and get the proper cable if you're going to do testing. An adapter will run you probably half the price of the proper cable. | |
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New member Username: Jonas2410Post Number: 3 Registered: Apr-06 | JASON BORNE.....can i get the $15 cable @ radio shack will it say db9 im not sure im not a computer guy ive learned through trial and error. ps changed name was trying to use something that might have looked cool | |
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New member Username: Jonas2410Post Number: 4 Registered: Apr-06 | JASON BORNE.... do you know if i can do a sw/transfer from 2700 to 2500 | |
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Silver Member Username: HardrockstrikerPost Number: 124 Registered: Apr-06 | Jonas, i would just get the latest bin for the 2500 instead of transfering, because i'm pretty sure that 2500 and 2700 cannot use the same bin file! The cable should be a null modem (it should be labelled as such on the cable) with db9 female on both ends. You will also need a loader program on your computer. GTRomloader is one example of such a program. |
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Bronze Member Username: TadonDover, NJ Usa Post Number: 60 Registered: May-06 | I guess due to GTRom loader program just assign straight out only COM port . Therefore some cable such as USB, DB25 to DB9 ... do not work well for Receiver (even cable is working for PC to PC or other device) . Also reason is due to a connection is different . For ex. signaling for stop transfer pin and Ready transfer pin between DB25 to DB9 & DB9 to DB9 was connected different . But I do beleive DB25pins to 9pins will work somehow if one can modify a connection cable. Of course need have time for soldering & testing. |
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