One IQ can connect to up to 16 locks. The locks can be directly linked to the IQ or through repeaters. A total of 6 repeaters can be connected to an IQ, either directly or in a linked configuration (IQ > Repeater > Repeater) in maximum 3 layers.
Regardless of the number of repeaters the maximum amount of 16 locks per IQ remains the same.
For more information on the IQ and repeater, please visit our hardware page.