Pass the AVIXA AVIXA Communications Certifications CTS Questions and answers with CertsForce

The first stage in troubleshooting an AV system is identifying the symptoms of the error. This step involves observing and documenting the specific issues or malfunctions that are occurring. By clearly understanding and articulating the symptoms, a technician can more effectively diagnose the problem and narrow down potential causes. Once the symptoms are identified, the technician can proceed to evaluate possible sources of error, check device functionality, and review system diagrams as needed.

Incandescent lamps generate light by heating a filament inside a glass enclosure. This process is different from fluorescent, CFL, and LED lamps, which rely on gas discharge or semiconductor technology rather than a heated filament.

CTS References: AVIXA CTS Exam Guide, Chapter on Lighting; CTS Handbook, Section on Lamp Types and Their Characteristics.

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In an audiovisual system where a touch panel is to be connected to the control system via the LAN, the designer typically chooses to use a static IP address. A static IP address ensures that the touch panel always has the same IP address, making it easier to locate and communicate with within the network. This is crucial in a control system where consistent and reliable communication is necessary. Using a static IP address avoids the potential issues that can arise with dynamic IP addresses, which can change and cause disruptions in communication.

Connector A is a BNC (Bayonet Neill-Concelman) connector, which is commonly used for a variety of signal types, including video (such as composite and SDI), RF signals, and even some data signals. It is known for its ease of termination, with a simple twist-lock mechanism that ensures secure and quick connections. The BNC connector's versatility and reliability make it popular in professional AV environments.

Connector B is a VGA (Video Graphics Array) connector, typically used for analog video signals, particularly between computers and monitors. However, VGA connectors are not typically associated with ease of termination due to their multiple pins and more complex soldering requirements compared to the quick-connect design of BNC connectors.

CTS Technology Specialist Reference

The CTS curriculum highlights BNC connectors as versatile and easy-to-use, suitable for a range of AV signal types. Their locking mechanism and straightforward assembly process make them a preferred choice for AV professionals needing quick and reliable connections across various applications.

A Gantt chart is a project management tool that visually represents project tasks along a timeline. It shows the start and end dates of tasks, their duration, dependencies between tasks, and the relationships between activities. Gantt charts are widely used to plan, schedule, and monitor project progress, providing a clear overview of the project timeline and helping ensure that tasks are completed on schedule.

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All devices must share the same subnet to communicate. If a device is on a different subnet (e.g., 192.168.20.x instead of 192.168.10.x), it won’t communicate with others unless routing is configured.

“Mismatch in subnet masks or incorrect subnet addresses is a common cause of connectivity issues in AV networks.”

— CTS Exam Guide, Networking and IP Configuration Essentials

To mount a projector so that it is horizontally centered with the suspended screen, the technician should look at the reflected ceiling drawings in the plans. Reflected ceiling plans provide a view from above, showing the layout and alignment of ceiling elements, including projectors, screens, lighting, and other fixtures. This perspective is essential for ensuring that the projector is correctly aligned with the screen. Axis Technology Specialist documentation highlights the use of reflected ceiling plans for precise alignment of AV equipment.

Constant voltage distributed audio systems use a parallel wiring scheme, allowing multiple speakers to be connected to a single amplifier without needing to match impedances precisely. This setup is common in large venues where many speakers are distributed over a wide area.

CTS Technology Specialist Reference

CTS materials explain that parallel wiring is standard in constant voltage systems, as it simplifies installation and allows for flexible speaker placement across large areas.

Zone D

In a mix-minus audio system, the microphones within each zone are typically routed to the speakers in other zones, excluding the zone they are in. This setup helps to avoid feedback, as it minimizes the likelihood of a microphone picking up sound from a nearby speaker broadcasting the same audio. For Zone C’s microphones to be the loudest, they should be directed to Zone D, which is adjacent to Zone C but not in the immediate vicinity of Zone C’s microphones.

Mix-minus configurations are common in conference rooms and other multi-zone environments, where sound needs to be clear and localized without causing feedback.

CTS Technology Specialist Reference

The CTS guidelines on sound system design discuss mix-minus as an approach to achieve speech clarity and prevent feedback in multi-zone audio systems by broadcasting microphones to other zones rather than the one they are in.

Using a cable tester and running a protocol is the best way to verify the proper performance of a CAT cable with a new termination. Cable testers can check for continuity, wiring configuration, signal quality, and performance standards compliance (e.g., Cat 5e, Cat 6). They can detect faults such as open circuits, short circuits, and incorrect wiring, ensuring the cable is terminated correctly and capable of supporting the desired network speeds and protocols.