Today, I installed the Elk-M1DBH data bus hub into the structured wiring panel just below the controller. It gets screwed onto a mounting plate which snaps into the panel. I didn't have any 4-conductor wire, so I haven't hooked it up to the Elk controller yet. This component will connect -- via Cat-5 wire -- to Elk-M1XIN's (for additional security detectors) and Elk-M1XSP's (for lighting and thermostat control).

I also installed the Elk-M1XIN 16 zone input expander into the structured wiring panel. It gets installed vertically in the panel between a pair of plastic guides. I didn't have any Cat-5 wire with me either, so I couldn't connect it to the Elk-M1DBH.

I'll have to bring some wire with me next time!