The ADT DSL Filter for Security Alarm Systems allows the co-existence of DSL service in homes where security systems are installed. Many security system alarm panels communicate via a phone line. If you change your phone line to DSL, you need to add a special alarm DSL Filter so your alarm system can still communicate. But if you don’t, you will have intermittent communication or none all together. This is different than a phone line DSL filter because it’s made for a larger head called RJ45 while a phone uses RJ11.

Additionally, you usually install this filter between the RJ Block and the alarm control panel.

Features of the ADT DSL Filter for Security Alarm Systems:

• Compatibility with most major alarm panels
• Allows reliable alarm panel reporting and cut-line protection
• Uninterrupted DSL communication during alarm panel line seizure and incident reporting
• RJ31X-RJ38X connections for line seizure and cut-line protection
• Over-voltage protection, protecting alarm panel from power surges
• Easy installation for service provider personnel—less than 15 minutes to insert filter between alarm panel and phone line and perform a system test
• Compliant and Listed with FCC Part 68
• Dimensions: 8 x 3.5 x 1 inches ; 2.1 ounces