Video: Advanced Ring and loop detect board | LDB-3 from Viking Electronics
The LDB-3 provides a relay contact when ring voltage and/or loop current are present on the line. It is compatible with an analog phone line, an FXS port of an ATA, an analog PABX extension, or similar. It can switch voltage and provide a dry relay contact to trigger another device such as strobe lights, cameras, access control systems, and more.
Viking manufactures over 500 security and communications products. For more information about products listed in this video or help with your specific application:
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