DC432/DC440 - Firmware upgrades?

[Enzo]

Re: DC432/DC440 - Firmware upgrades?

Then. I bought:
1) a serial cable female / female
2) gender changer male / female
3) pci card parallel for computer desktop
4) Mini Centronics / parallel

I bought the right cables to reload the software?

[adriansto]

Re: DC432/DC440 - Firmware upgrades?

Yes and you must use null modem adapter.

[Enzo]

Re: DC432/DC440 - Firmware upgrades?

Yes and you must use null modem adapter.

This is the null modem adapter that I bought:

!BrNS-jg!mk~$(KGrHqEOKikEuZHw4iSKBLy)bWtWtw~~_12.jpg male / female


it's correct?

[adriansto]

Re: DC432/DC440 - Firmware upgrades?

!BrNS-jg!mk~$(KGrHqEOKikEuZHw4iSKBLy)bWtWtw~~_12.jpg male / female


I think this one is only gender changer not null modem.

[Enzo]

Re: DC432/DC440 - Firmware upgrades?

I think this one is only gender changer not null modem.

I purchased it on ebay. In the insertion it says: "GENDER CHANGER ADAPTER SERIAL 9 PIN NULL MODEM M / F"

[adriansto]

Re: DC432/DC440 - Firmware upgrades?

This is the pinout for serial cable and for gender changer.
You can check !serial&gender.jpg

[Enzo]

Re: DC432/DC440 - Firmware upgrades?

This is the pinout for serial cable and for gender changer.
You can check ![ATTACH=CONFIG]16721[/ATTACH]

I'm sorry friend but I do not understand these things. I do not understand the electronics! I just want to be able to reload the software as simple as possible. I can reset the chip and changing the machine settings, but it is becoming difficult to load the software. No one helps me. There's only you to help me and thank you so much!

[Enzo]

Re: DC432/DC440 - Firmware upgrades?

some good soul can tell me how to upgrade the software ess? I have all the materials but I do not know how to proceed step by step. Maybe some video could help me out.

[Bhante]

Re: DC432/DC440 - Firmware upgrades?

I'm sorry friend but I do not understand these things. I do not understand the electronics! I just want to be able to reload the software as simple as possible. I can reset the chip and changing the machine settings, but it is becoming difficult to load the software. No one helps me. There's only you to help me and thank you so much!

Hello Enzo,

A single "serial cable" plus gender changer will not do, because some of the wires are switched: for example pin 2 at one end of the serial cable always goes to pin 3 at the other end, and pin 3 at the first end goes to pin 2 at the second end. Also some of the other wires will be switched, but also serial cables often do not have all wires connected.

For the null modem all the wires have to go straight through, pin1-pin1, pin2-pin2, pin3-pin3 etc as shown in the diagram above. I don't know how many of the wires are actually needed on the xerox, but the safest bet is to have all 9 pins connected. Using your "gender changer" on its own will give the correct connections, but you would have difficulty connecting the serial port of your desktop straight into the xerox printer without a wire in between the connectors at each end! It simply won't fit. So you need a null modem cable with all wires going straight through pin to pin. A null modem is a standard communications part, but you will NOT find it in the high street! You need to get it from a communications specialist or make it up yourself.

What you MIGHT find in the high street is two serial cables with ALL 9 wires connected: in that case you can connect the two series cables end to end, with the gender changer in the middle. As long as all 9 wires are connected it should work, but if not all wires are connected (not all 9 are required for a normal serial cable) then it will be pot luck whether it will work or not. By connecting the two cables end-to-end the wires that get swapped in one cable get swapped back in the other cable, that is why you need two of them.

A serial cable might operate at up to 25 volts, and anything connected to it must be able to cope with that voltage. The TTL adaptor will convert the 25 volts of the serial port (RS232) into 5 volt logic signals; I myself don't know exactly what form this adaptor takes but I assume it will be converting the signals on each of the 9 wires from 25 volts to 5 volts (except ground which does not need converting), and with a 9 pin connector at each end. You can find an RS232 to TTL converter on ebay, but you will still have to connect a 9 pin connector to the TTL end, because it will almost certainly have a different connector. Alternatively you might be able to dismantle the 9 pin connector on the UI and connect your TTL directly to the circuit board, but I don't know what sort of connectors it has and you have to know what you are doing to connect the wires correctly. Or maybe you can find someone selling these things on ebay from eastern Europe who might be willing to put a 9 pin serial connector on both ends of an RS232 to TTL adaptor.

Regards
Bhante

[Enzo]

Re: DC432/DC440 - Firmware upgrades?

Hello my friend. I bought all the necessary cables because someone had told me to buy those specific cables. Even my officer technical xerox told me that the cables are fine. I may not have the appropriate pws!

[Bhante]

Re: DC432/DC440 - Firmware upgrades?

Hello my friend. I bought all the necessary cables because someone had told me to buy those specific cables. Even my officer technical xerox told me that the cables are fine. I may not have the appropriate pws!

OK Enzo, if you have a multimeter or a circuit tester you can check if your serial cable is correct or not. With the multimeter test the resistance between pin 2 at one end and pin 2 or pin 3 at the other end. Or with the circuit tester test the same pins for open circuit or not. If your serial cable is usable as a null modem then you will find that the resistance between pin 2 at one end of the cable and pin 2 at the other end of the cable is very low (a few ohms - closed circuit), while the resistance between pin 2 at one end and pin 3 at the other end is very high (more than your multimeter can measure - open circuit). If on the other hand you find that pin 2 - pin 2 is open circuit and pin 2 - pin 3 is closed circuit, then your serial cable is not usable as a null modem.

Best regards
Bhante

[Bhante]

Re: DC432/DC440 - Firmware upgrades?

The TTL adapter fits on the serial cable and plugs in underneath the control panel. It is used to upgrade the UI software.

Serial cable not null modem? That means the 9-pin D connector under the control panel is wired like a standard (apart from voltage level) serial port? Or are the connections on the Xerox TTL adaptor proprietary? How many contacts are used - Gnd, Vcc, Rx, Tx, RTS & CTS?

[Enzo]

Re: DC432/DC440 - Firmware upgrades?

Can anyone give me the pws for this machine? Mine is not working! Thanks

[adriansto]

Re: DC432/DC440 - Firmware upgrades?

What mean " pws '" for this machine ?
Do you know how to reload software on the DC340 series machine ?

[Enzo]

Re: DC432/DC440 - Firmware upgrades?

What mean " pws '" for this machine ?
Do you know how to reload software on the DC340 series machine ?

I have some idea of how to proceed but I miss the alternate boot. I have one but it does not work! probably not suitable for xp.