Method of configuring a two-way wireless load control system having one-way wireless remote control devices

A radio frequency (RF) load control system for controlling the amount of power delivered from an AC power source to a plurality of electrical loads, the system comprising:

• a plurality of two-way control devices operable to transmit and receive RF control signals to control the operation of the electrical loads;
• a one-way remote control device operable to transmit RF control signals to one or more of the two-way control devices to control the operation of the electrical loads;
• and
• a main controller operable to transmit a plurality of enter address mode commands to the two-way control devices, and pause the transmission of the enter address mode commands for a predetermined period of time before repeating the transmission of the enter address modes commands;
• wherein the one-way remote control device is operable to enter into an activation mode, and transmit an activation request message that includes a unique identifier of the one-way remote control device, the main controller operable to receive the activation request message from the one-way remote control device while the transmission of the enter address mode commands is paused, the main controller further operable to check a memory of the main controller to determine if the unique identifier is already stored when the activation request messages has been received, and store the unique identifier in the memory to assign the one-way remote control device to the load control system if the unique identifier is not already stored.