CDPD is primarily associated with which type of device?

CDPD, or Cellular Digital Packet Data, is primarily associated with cellular communicators. This type of technology allows devices to connect to cellular networks for data transmission, enabling communication over long distances without the need for physical wiring. Cellular communicators utilize mobile network infrastructure to transmit alarm signals and other data from security devices to monitoring stations.

Cellular communication is particularly advantageous in alarm systems because it offers increased reliability and flexibility. Unlike wired systems, cellular communicators can operate independently of physical connections, making them less vulnerable to tampering or interruptions from local infrastructure issues. This feature is essential for burglar alarms, which need to maintain communication even in adverse conditions.

The other options, such as satellite communicators, fiber optic communicators, and radio communicators, serve different purposes and operate through distinct technologies. Satellite communicators rely on satellite networks, fiber optic communicators use light signals through fiber optic cables, and radio communicators employ radio waves for transmission. While these technologies may serve in various applications, CDPD's association with cellular communicators distinctly highlights the capabilities and benefits these devices provide in alarm systems.