The HGLN-D2T is a high performance lightning and surge protector that provides superior protection for two DSL, Telephone and T1 lines from transients and surges. The design of the HGLN-D2T incorporates the use of three terminal differential gas discharge tubes which provide superior common and differential mode protection against conducted transients versus the use of lower cost two terminal tubes. The HGLN-D2T utilizes the gas discharge tubes on each pair to provide superior power handling capability. The HGLN-D2T features two RJ11 jacks for ease of installation. Additional features include a ground lug directly on the lightning protector housing providing superior grounding. Integral mounting feet are provided on the cast aluminum house. For additional information and complete specifications, click on data sheet link below.