PDH networks are commonly used for data communication in WANs. They often serve as a bridge between different users or infrastructure. Carrier media can be dedicated lines, microwave links or satellite links. Widely varying user requirements can be covered using application-neutral multiplexing of various operating modes. Encryption units have to be placed at the two end points of a connection in order to transmit sensitive information. These units ensure the security of the transmission, regardless of the operating mode and specific purpose involved.

With PDH Encryption HC-8510 E1, valuable information remains protected against all attacks from outsiders.