What type of connectors are used to wire the PCL422?
When you mount the PCL422 to the side-wall; you will use two different types of connectors.
The first connection is between the PCL422 and the cellular radio. When making this connection you will use 22 gauge 4 conductor alarm wire.
The second connection from the PCL422 goes from the PCL422 to the main board. To make this connection you will use the included PCLink cable that comes with the cellular communicator.