BT Openreach Pressac Telephone Master Socket (Product Code: LJNTE5A). Function: Serves as the main termination point for telephone lines entering a property, providing a clear demarcation between network and customer wiring. Features: Includes a removable lower connection unit for testing lines, ring components, and over-voltage protection. Broadband: Contains a bellwire filter designed to improve broadband performance. Installation: Designed to terminate single copper pair lines using standard BT-style connectivity. New in manufacturers packaging
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