Valcom VB-S20 Mounting Box for Speaker, Clock - Gray

The VB-S20 Mounting Box is an essential enclosure designed to house Valcom’s large clock and speaker assemblies with ease and reliability. Built to accommodate the VB-A21, VB-R19, and VB-S20 backbox family, this gray enclosure delivers a clean, professional look while protecting critical communications equipment in high-traffic environments. Whether you’re mounting on a hard surface such as concrete or cinder block, or opting for a recessed installation in drywall, the VB-S20 provides a flexible, durable solution that makes installation straightforward and maintenance simple. In schools, hospitals, offices, and other institutional spaces, this backbox ensures your timekeeping and PA system stay securely in place and perform consistently for years to come.

• Flexible mounting options: Choose the surface mount backbox for hard surfaces or a recessed mount for drywall, enabling you to tailor the installation to the wall type without major remodeling or added framing.
• Designed for large clock/speaker assemblies: Specifically engineered to fit Valcom’s prominent clock and speaker modules (VB-A21, VB-R19, and VB-S20), ensuring a snug, secure fit and reliable operation.
• Durable gray enclosure: The gray backbox blends with most interiors while offering robust protection against everyday use, dust, and incidental impact in busy spaces.
• Streamlined installation: Engineered to simplify mounting and cable routing, helping technicians reduce installation time and avoid unnecessary wall disruption.
• Ideal for institutional environments: A practical choice for schools, hospitals, offices, and other facilities that require dependable public-address and timekeeping solutions with a neat, professional appearance.

Technical Details of Valcom VB-S20

• Product: VB-S20 Backbox
• Compatibility: Supports Valcom clock/speaker assemblies VB-A21, VB-R19, and VB-S20 for secure mounting and seamless integration.
• Mounting options: Surface Mount Backbox for hard surfaces such as concrete or cinder block; Recessed Mount Backbox for drywall installations.
• Finish: Gray enclosure designed to blend with typical interior finishes and institutional environments.
• Application: Suitable for mounting large clock/speaker assemblies in educational, healthcare, and commercial facilities where reliable performance and clean aesthetics are important.
• Construction: Rugged enclosure intended to protect wiring and devices while providing a professional, low-profile appearance.

how to install Valcom VB-S20

Install the VB-S20 backbox by following these general steps to ensure a secure, durable mount that accommodates the clock/speaker assembly smoothly:

• Plan the placement by considering sight lines for the clock and reach for the speaker, and verify wall material to determine whether a surface mount or recessed backbox is required.
• For hard surfaces, mark the mounting holes and prepared openings, then select appropriate fasteners suitable for concrete or masonry. For drywall, prepare a recessed cavity or use the backbox in a position that sits flush with the wall surface.
• Install the backbox securely using the chosen hardware, ensuring the unit is level and firmly anchored to prevent shifting during operation or maintenance access.
• Route power and signal cables through any built-in knockouts or openings, keeping conductors organized and away from moving parts of the clock/speaker assembly.
• Attach the clock/speaker assembly to the backbox according to Valcom’s wiring diagram and mounting instructions, ensuring all connectors are secure and that the unit sits flush within the opening.
• Finish by reinstalling any trim or faceplates to achieve a clean, professional appearance and to protect internal components from dust and accidental contact.
• Perform a functional test to verify clock timing, speaker output, and overall system integration, addressing any alignment or wiring issues before putting the installation into service.

Frequently asked questions

• What is the VB-S20 backbox used for? It is a mounting enclosure designed to house Valcom clock and speaker assemblies and provide secure, stable mounting on walls, with options for both surface and recessed installations.
• Which surfaces can I install the VB-S20 on? The backbox supports surface mounting on hard surfaces like concrete or cinder block, or recessed mounting for drywall installations, offering flexibility to suit your building type.
• Is the VB-S20 color customizable? The backbox is gray to blend with most interiors; custom color options may require alternative Valcom enclosures or finishing work by the installer.
• Can I install the VB-S20 myself? Yes, a competent DIYer or professional electrician can install it, provided you follow Valcom’s wiring diagrams and safety guidelines and use appropriate hardware for the wall material.
• Will the VB-S20 accommodate future upgrades? The backbox is designed to support the corresponding Valcom clock/speaker assemblies, making it straightforward to upgrade to compatible models without replacing the enclosure.
• Does the backbox protect the internal wiring? Yes, the enclosure provides a protective housing for internal wiring and connections, helping to shield components from dust and incidental contact while maintaining a neat installation.