Excelsus Z-Blocker Z-A431PJ31X-A Alarm Panel DSL Filter
UNIVERSAL BATTERY N8001 DSL Alarm Filter Allows the alarm panel to take custody ;of the main phone line while passing ;DSL signals to modems and other networking devices in the home simultaneously; DSL signal is filtered protecting ;the alarm panel ; Passes the high-frequency DSL signal ;to the inside telecommunications wiring; Alarm panels connection is filtered to inside the telecommunications wiring maintaining the high impedance required for DSL signals DSL Alarm Filter