Problem connecting to a Paytec UPT1000F over MDB

[fheihoff]

Hi,

we have been using a full Paylink unit to connect to our coin and bill acceptors and coin dispensers to great success since 2013 and have recently started efforts to add a Paytec UPT1000F payment terminal (https://www.paytec.ch/produkte/automate ... s/upt1000f) to our system to facilitate cashless payments. Unfortunately, we cannot seem to get said payment terminal to connect to our Paylink unit over MDB.

We have already checked the cable for the correct levels and even used a scope to check that the polling message (12h 12h) is transmitted to device address 10h correctly on the correct lines, which we also observed from MilanDiag.exe when connecting our development laptop over USB. Nonetheless, the rx line is always pulled up to 5V and we never get any response to our poll messages. We had some intermittent contact to the payment terminal (to the degree that AESCDriver logging showed the device name) while we were still fashioning the cables and handling them with our hands but could not reproduce this since then.

Our Paylink unit is flashed to the latest firmware version (4.1.12.16-526) and we also compiled the latest version of AESCDriver (on Ubuntu 22.04), i.e. v4.1.12.17.

We are now at a bit of a loss as to what cold lead to this behavior. Do you have any ideas how we could remedy this problem and establish a successful connection?

Thank you and best regards,
Frederic

[davebush]

Hi,

I can't see any way that this could be software in the Paylink, and you already have the Paylink MDB hardware working with your other connections.

The only two things i can think of are problems the 24/36 V power to the Paytec, or the Paytec itself is faulty.

Sorry not to be more help,

Dave

[fheihoff]

Hi,

first of all, thank you for your swift reply! Just to clarify, our cash devices are not connected over MDB but ccTalk for the coin acceptor and hoppers and ID003 for the bill acceptor. The Paytec UPT1000F is the first device we have connected over MDB thus far. We are currently powering it using 12V directly from our central power supply in compliance with the specs of the device, which allow for a range of 9V to 34V (or technically 9V to 48V for the MDB version).

I have whipped up a quick ZVT LAN integration for it in the mean time, which seems to work fine for the basic functionality of the payment terminal. Given that we never had these kinds of troubles with the basic physical connection when integrating devices before over all these years, it is indeed very mystifying.

Best regards,
Frederic

[davebush]

Hi,

I'm sorry but I've not got anything to add. I would have suggested that the address may wrong, but you say it did respond once, so it's not going to be that.

Given the tests you've done with a scope, it just looks to me like the MDB circuity on the Paytec is faulty.

Sorry i can't be more help.

Regards

Dave
P.S. You're English is excellent, but you've written cold and sold, not could and should. (We have weird spellings)