High Speed Digital T1 or Leased Line Protector Protects up to one T1 or ISDN line per port using RJ48C/48S connectors. ISDN BRI/PRI compatible. AutoResetting 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: T1, ISDN Agency Approval: UL 497A (Secondary) Grounding Requirements: Uses Electrical AC Ground Recommended Grounding Impedance:

• High Speed Digital T1 or Leased Line Protector Protects up to one T1 or ISDN line per port using RJ48C/48S connectors. ISDN BRI/PRI compatible. AutoResetting 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: T1, ISDN Agency Approval: UL 497A (Secondary) Grounding Requirements: Uses Electrical AC Ground Recommended Grounding Impedance:
• Towermax LL(T-1) Module
• Dimensions: 8.00x1.50x4.25
• Item Weight: 0.45
• 100% Satisfaction

High Speed Digital T1 or Leased Line Protector Protects up to one T1 or ISDN line per port using RJ48C/48S connectors. ISDN BRI/PRI compatible. AutoResetting 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: T1, ISDN Agency Approval: UL 497A (Secondary) Grounding Requirements: Uses Electrical AC Ground Recommended Grounding Impedance: ITW Linx