For On-Q structured wiring, choose Ethernet modules that match the installed cable, such as Cat 5e or Cat 6, and provide enough ports for your network locations. Add a telephone module with RJ45 or IDC termination and an RJ31X security port when needed, then select a coaxial splitter based on the number of video locations and required signal frequency, or use a combo module to centralize multiple services in one enclosure.

Match the module to the installed cable category, such as Cat 5e or Cat 6, and confirm that its punchdown terminals, RJ45 connections, and wiring layout align with the existing cabling. Also check the number of data or voice locations, the router or switch connections, and the enclosure space so the module supports your system without requiring unnecessary rewiring.

Enclosure size determines how many structured wiring modules, splitters, telephone interfaces, and network connections the installation can accommodate, while available depth provides room for terminations, cable routing, and future additions. Cable access plates and brush-style openings help route HDMI, coaxial, and network cables cleanly between the enclosure and connected equipment, supporting a neater, more serviceable installation.

An On-Q structured wiring system supports future expansion by centralizing voice, data, and video connections in an enclosure, where installers can add or replace modular distribution components as needs change. Multi-port telephone, Ethernet, and coax modules provide organized connections for multiple rooms, while enclosure extenders and cable-access wall plates help accommodate additional equipment and routed cabling.