System including a router, controllers and non-light-emitting variable transmission devices and a method of using the same

A system comprising:

• glazings including variable transmission devices;
• controllers coupled to the glazings and configured to provide power to the variable transmission devices;
• a router coupled to the controllers, wherein the router is configured to provide power and control signals to the controllers;
• and
• a logic element configured to:
• determine power requirements for the controllers coupled to the router;
• and
• allocate power to the controllers corresponding to the power requirements.

A method of controlling variable transmission devices comprising:

• determining power requirements for controllers coupled to a router, wherein:
• glazings include variable transmission devices;
• the controllers are coupled to the glazings and configured to provide power to the variable transmission devices;
• and
• the router is coupled to the controllers, wherein the router is configured to provide power and control signals to the controllers;
• and
• allocating power to the controllers corresponding to the power requirements.