What is the primary purpose of the RJ31X cord in alarm systems?

• A. Connects to the alarm panel via an RJ31X block using its spade connectors
• B. Acts as the main power supply for the panel
• C. Transmits video feed to a monitoring center
• D. Programming the control panel

Answer: (A)

The main idea here is that the RJ31X cord provides a dedicated, protected path for the alarm panel to reach the monitoring center by connecting the panel to the building’s telephone service through an RJ31X wall jack. The cord uses simple spade connectors to attach to the panel’s line terminals, while its other end plugs into the RJ31X block at the wall. This setup is designed so that if someone cuts the home phone line, the RJ31X can switch the pathway and allow the panel to dial out to the monitoring center over the outside line, maintaining communication.

It’s not about powering the panel, transmitting video, or programming the control panel, which is why the other options don’t fit.