Optimaalne andmeedasus on saavutatav, kui lugemipea on täpses asendis (kaabel allapoole) ning tariifiseadise infrapunavastuvõttur asetseb otse lugemipea infrapunasaatja vastas ning lugemipea infrapunavastuvõttur asetseb otse tariifiseadise infrapunasaatja vastas.
Optimum data transfer is achieved when the reading head is in the correct position (cable downwards), the infrared receiver in the tariff device is aligned directly opposite the infrared transmitter in the reading head, and the infrared receiver in the reading head is directly opposite the infrared transmitter in the tariff device.