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Dell Axim X51v Serial Cable

13.01.2020 
Dell Axim X51v Serial Cable Rating: 9,5/10 1942 votes

I got my Dell Axim to work. I posted this to a thread in the software forum but it is really a Hardware solution.The Dell cable has a chip in the cable that powers down the serial interface when nothing is connected to the cable. To get the ELM circuit to work, you have to energize the right pin.Jumping over the details. I found that if I put a voltage on pin 4 of the Dell cable, the chip turns on. Experimentally, a voltage greater than +1.85 volts (or presumably less than -1.85 volts) turns it on. I would use 2.7 volts or more (in absolute value) like the chip spec sheet says just to be sure.The Axim is wired so that it already includes a 'Null Modem'/ 'Gender Bender' so if you are connecting to a device that expects a computer, you have to UN-Null to get back to what a real computer would have.

You do this with a Null Modem. Two nulls turn it back to a computer connector.

Dell Axim X51v Serial Cable

(See below for how I built my null modem.)If the Axim cable was just plugged into a computer, pin 4 would connect to DTR out of the computer. Standard Null modems connect DTR to DSR, pin 6. So, I connected +5 volts from my ELM circuit to pin 6 of the ELM board connector. The Null modem connects that to Pin 4 of the Axim cable. When you plug the two together, everything comes alive.To make my Null modem, I used two 9 pin Male D connectors.

CableAxim

Call them A and B. I connected A2-B3, A3-B2, A5-B5, A6-B4, A4-B6. Making all these connections results in the Null modem being symmetric so you don't have to worry which side plugs into which cable. I have included a web cam pic taken before I added the A6-B4, A4-B6 wires. From you:'The Axim is wired so that it already includes a 'Null Modem'/ 'Gender Bender' so if you are connecting to a device that expects a computer, you have to UN-Null to get back to what a real computer would have.'

From Ivan's site:'You will need a null-adaptor between the RS232 cable from the Elm board and your PPC RS232 cable'Your post lead me to believe that the Axim cable is unique in that the it is already wired as a 'Null Modem' so why would I want place another null inline to cancel that out?What I'm getting from the two of you is this:The Dell Axim cable is wired as a 'Null Modem' and that is what is needed to run Ivan's program. Unless all PocketPC PDA's serial sync cables are like this then that would make me think that the Dell is different in that respect.

If it's not unique then what you posted makes perfect sense to me.otherwiseLike I said I don't know much about this stuff.I'm just telling you what I came away with after reading from both sites and trying to combine them.Not trying to be difficult.just trying to learn.Thanks,Richie. The short answer, Ivan and I are saying the same thing. You need a NullModem.The long answer can be found at:I'll give you my version. There are two sides to a serial connection. One can be considered the 'master' or the 'Computer' or the 'Data Set'. If it has a 9 pin connector, it transmitts on pin 2 and receives on pin 3.The other side is the 'slave' or the 'external device' on the 'Data Terminal'. If it has a 9 pin connector, it transmits on pin 3 and receives on pin 2.If you connect a master and slave, pin to pin (22, 33) they talk just fine.

Wwe 13 psp hack download link. Transmit of one into receive of the other and visa versa.The 'computer' is always considered by people to be the master. An external device like the ELM would be considered the slave.Since a PDA is like a computer one would think it would be wired as a master.

However, when you buy a serial cable for it, the manufacturer assumes you are going to use it to connect to your desktop so they wire the cable such that it is a slave. Thus the PDA transmits on pin 3 and receives on pin 2 so it can plugged directly into the desktop. Thus my origional statement that the cable includes a nullmodem.The ELM is also wired as a slave. Thus it transmits on pin 3 and receives on pin2 So both the ELM and the PDA cable are wired as slaves, transmitting on pin 3 and receiving on pin 2. If you want to connet them together, you have to make one transmit on pin 2 and receive on pin 3. A NullModem does exactly that.

Dell Axim X51v New

Swaps pin 2 and 3.Hope this helps.PeteC.

Product DescriptionDell X51 Pocket PC Handheld - Win Mobile 5.0 -Reconditioned Item IN STOCK in wonderful condition. Unit ships with battery, synch cable, ac adapter. Software and manual can be downloaded below.connectivity and a brilliant VGA display in a sleek, sophisticated design. Powered by the Intel XScale PXA270 Processor at 416 MHz, 64 MB SDRAM and 128 MB Flash ROM, the device offers excellent performance. This handheld comes equipped with the Microsoft Windows Mobile 5.0 operating system. It includes an integrated Compact Flash card slot and Secure Digital/MMC card slots for flexible expansion. Featuring a 3.5 mm headphone / headset jack for headsets.

The integrated Bluetooth wireless technology offers flexible connectivity options!Model Differences:Dell X50 - VGA screen, a 416 MHz processor, 64MB flash ROM, Windows Mobile 2003Dell X50V - VGA screen, a 624 MHz processor, 64MB flash ROM, Windows Mobile 2003Dell X51 - VGA screen, a 416 MHz processor, 128MB flash ROM, Windows Mobile 5.0Dell X51V - VGA screen, a 624 MHz processor, 256MB flash ROM, Windows Mobile 5.0.