What kind of connection must be used for data communication between modules?

A secure, low-resistance connection is essential for data communication between modules because this type of connection ensures low signal loss and reliable data transfer. Low resistance minimizes the potential for electrical interference and degradation of the signal quality. Additionally, a secure connection often incorporates shielding or specific protocols to prevent unauthorized access or data breaches, thus enhancing the integrity and confidentiality of the communication between modules.

In contrast, a high-resistance connection would lead to higher signal degradation, making it less suitable for data transmission, as the increased resistance could distort the signals being sent. A direct and unshielded connection may expose the communication to external electrical noise, which could compromise data integrity. Although wireless connections are convenient, they are not the only method for data communication; options can vary based on the application and the environment. The most suitable choice in this context focuses on maintaining a reliable and secure data transfer through a low-resistance connection.