Cable testing

NEnhanced Skew-free A/V cable is not recommended for Ethernet/LAN applications.

This cable is specially designed for compatibility with Extron’s Twisted Pair products, wired using the TIA/EIA 568 A standard.

The green, brown, and blue pairs of this cable have virtually identical lengths, and should be used to transmit the RGB signals.

The orange pair of this cable has a different length and should not be used to transmit RGB signals.

To ensure proper cable termination, each transmission cable system using CAT 5e should be tested (Extron’s Enhanced Skew-Free UTP cable does not need to be tested). Testing the cable from the RJ-45 connections at the transmitter and receiver gives the most accurate indications of cable problems.

There are two varieties of cable runs: simple runs, in which a single cable is terminated only at the transmitter and receiver, and complex runs, which can include patch bays and multiple terminations and lengths of cable. In either case, the entire cabling system should be tested.

A complete test measures cable length and tests the wire map, attenuation, NEXT, PSNEXT, ELFEXT, PSELFEXT, return loss, ACR and PSACR. All of these tests are critical for digital data transfer. While all are important indicators of the quality of the cable termination, the most critical testing parameters for video transfer are wire map (T-568-A termination) and pair length measurements. The largest concern is equalization of skew between cable pairs. Cable systems of 300 feet or less should exhibit no transmission problems if they pass at least CAT 5e or preferably CAT 6-D5 channel certification testing.

The Microtest OMNI SCANNER 2 performs comprehensive certification testing to CAT 6 standards. Other manufacturers also make testing equipment. The tests include advanced diagnostics for troubleshooting the cause and location

of many cable and termination problems. For simple installation testing, the Microtest MICRO SCANNER PRO tests wire map and cable length, including individual cable pair length.

Equalizing pair skew

The manufacturing process for network (CAT 5e) UTP cable leads to a condition called pair skew. For best results, pair skew needs to be equalized when using the CAT 5e cable in A/V applications. The design of the Extron Enhanced Skew-Free A/V UTP cable reduces pair skew to the point that equalization is not required.

TP Receivers • Installation and Operation 2-17

TP Receivers specifications

Extron Electronics, a leading manufacturer in the field of audiovisual technology, offers a comprehensive range of TP (Twisted Pair) Receivers designed to cater to the demanding needs of modern AV environments. These devices are essential components in transmitting high-quality video, audio, and control signals over extensive distances using standard twisted pair cabling, such as Cat 5e or Cat 6.

One of the main features of Extron TP Receivers is their exceptional signal integrity. They employ advanced signal processing techniques to ensure that video resolutions up to 4K are delivered without degradation over long distances. This capability makes them ideal for use in educational institutions, corporate environments, and command-and-control applications where clarity and precision are paramount.

The technology behind Extron TP Receivers includes proprietary algorithms that optimize the transmission of video signals. This results in minimized latency and enhanced picture quality, providing an experience that is indistinguishable from direct connections. Moreover, the receivers support both HDBaseT and Extron’s own IP-based protocols, offering flexibility in system design and integration.

Additionally, Extron TP Receivers are equipped with built-in scaling capabilities. This feature allows users to convert incoming video signals to a desired resolution, accommodating various display formats and ensuring compatibility with legacy equipment. This adaptability further extends the usability of the devices across diverse applications.

Another noteworthy characteristic of Extron TP Receivers is their compatibility with various control systems. They can seamlessly integrate with Extron’s Global Control Network, allowing for centralized management of AV resources. This is particularly beneficial in large installations where multiple devices need to be controlled and monitored from a single interface.

Ease of installation is another hallmark of Extron’s design philosophy. TP Receivers come with user-friendly connectors and mounting options, facilitating straightforward integration into existing systems. The devices feature robust construction, ensuring long-term reliability in demanding environments.

In conclusion, Extron Electronics’ TP Receivers are positioned as versatile and high-performance solutions for AV signal transmission. With their emphasis on signal integrity, advanced technology, scalability, and ease of use, they are well-suited for a variety of professional applications, enhancing the overall audiovisual experience. Whether it's for large auditoriums or small conference rooms, these receivers are an integral part of any modern AV system.