The DMP 715-18T 4-Zone Expander Module, featuring the 718T Plug-in Screw Terminal, expands your system by adding four 12 VDC Class B zones. The rotary-switch addressing ensures straightforward configuration, and the screw-type terminal connection accommodates 14 to 22-gauge device wiring. Compatible with a voltage range of 9.9 to 15 VDC, this expansion module seamlessly integrates with DMP XT Series and XR Series Panels, offering a versatile and effective solution for your security needs.