- Category 6 Solid-State Building Entrance Protector- Protects high-performance 4-pair Cat6 outside plant cables as well as Cat6 UTP cables for voice or ISDN low voltage (digital, 75V) applications. Using 110 punchdown inout. - Recommended Grounding Impedance: <.5 Ohm - Signal Perfect Circuitry - Fused Clamping Level: 75V- Response Time: 1-5 nanoseconds - Capacitance: <5pF - Wires Protected: 4-pairs - Expandable System Protection: SurgeGate Modules can be attached to one another to expand system protection