Text Data Entry; Alphanumeric Data Entry - Ingenico iCT250 Quick Reference Manual

Then press [Enter] to confirm the data entered. The terminal then starts
validation.
For amount entries, the terminal initially displays $0.00. For example, to
enter the value "$5.30," press [5], [3] and [0]. No decimal point is
entered.
Then press [Enter] to confirm the data entered. The terminal then starts
validation.

Text Data Entry

When performing data entry into text-only fields, the terminal keypad
automatically defaults to all alpha characters.

Alphanumeric Data Entry

NOTE:
When performing data entry on screens that accept both
alpha and numeric characters, the method of using a shift
key "F" to access the alpha characters and special
characters is implemented. By pressing the numeric key first
and then pressing the "F" key, you can scroll through all
characters programmed on that key.
The Administrator key is also designated for other special characters;
it is marked with a period, comma, # (pound) and * (asterisk). To select
one of the special characters, press that key and then press the [F] key
until the desired character appears.
An alphanumeric data entry example is shown below:
TRANSACTION NAME
Card Number
[544619999]
TRANSACTION NAME
Enter Sale
Amount
[$5.30]
9