- Analog Station Set and Central Office Line Protector- Protects up to 16-wires (8-pairs) using 110 punchdown in/out.- Auto-Resetting Technology: PTC resistors open when a surge occurs, protecting your equipment, but unlike other fuses, the PTCs close again once the surge passes.- Expandable modular system- Applications: Analog and Central Office lines for PBX or KSU- Agency Approval: UL 497A (Secondary)- Grounding Requirements: Uses Electrical AC Ground- Recommended Grounding Impedance: <0.5 Ohm- Signal Perfect Circuitry- Auto-Resetting PTCs: 160 mA (8-10 Ohms)- Clamping Level: 260V- Response Time: 1-5 Nanoseconds- Capacitance: <50pF- Suppression Modes: Metallic and Longitudinal- Wires Protected: 16-wires (8-pairs)- Termination Type: 110 punchdown