Can also be used with several banks / accounts.

At the very beginning, it will map the account connected always the combination of Tan-generator and EC. If you have several of these generators have to be careful what Tan generator is coupled with what ATM card, otherwise the Tan numbers are not valid.

However, it is easily possible a generator with several EC cards and accounts to connect, I myself use this with a Volksbank and two Postbank accounts.

Is the TAN generator Once connected and plugged in the appropriate EC card you can by pressing can generate Tan number of F key. Then you have a few more times to confirm the data with OK and then gets to be entered Tan.
Once you have understood the operation to get along well with them.

Before I forget, on the small box of the TAN generator is a number, this is required by some banks, so do not throw them away!