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The QOLSYS INC QC000B-840 is an Ethernet daughter card designed to add wired network connectivity to compatible wireless control panels. Daughter cards are modular expansion components that mount directly to a main control board, extending its communication capabilities without replacing the primary hardware. This card provides a stable, hardwired Ethernet connection as an alternative or supplement to wireless communication paths. It is typically installed by low-voltage security technicians or alarm system integrators during panel commissioning or as a field upgrade to an existing installation.
This daughter card is suited for residential and light commercial wireless control panel installations where a reliable wired network connection is required. It fits into panel enclosures that support modular daughter card expansion, making it a straightforward add-on during new installs or service calls where wireless-only communication is not sufficient for the application.
Designed as an OEM-style expansion daughter card for compatible QOLSYS INC wireless control panels that support modular Ethernet connectivity upgrades.
Installation should be performed by a licensed low-voltage or alarm system technician. Power down the control panel completely before seating or removing any daughter card to avoid damage to the board or connected components. Follow the panel manufacturer's documentation for proper card orientation and seating. Local codes and the National Electrical Code (NEC) low-voltage provisions may apply depending on jurisdiction.
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