S8964B

Series:	*
Part Status:	Active

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<p>S8964B is a versatile family of devices specified for rail applications by RCA. Designed to meet the requirements of linear current and voltage signals that are used in rail applications, their output signals are available slightly above or below unity gain or with adjustable gains. This family of devices is uniquely designed for rail applications to give a high degree of isolation from signal-ground noise, rail current transients, and other system signals. Additionally, they are designed to achieve the highest levels of speed and accuracy while still being relatively simple to install and operate.</p><p>The S8964B family of devices offers a range of input and output configurations, providing voltage or current levels, as well as galvanic isolation, combination rails, and installation flexibility. The device is four pole four way, four wire design, providing input and output isolation, and an internal N-channel MOSFET for fast switching action. The family of devices is also designed to minimize signal crosstalk, providing a near zero-crossing transition, and a significant reduction in switching noise.</p><p>The output current sense network in the S8964B provides an output voltage signal, proportional to the sum of the input currents, allowing the user to accurately control and monitor the current in the rail system. The current sense module is designed to be tolerant to external noise, and provides configurable input and output isolation. Additionally, the S8964B allows the user to monitor the current in the track by connecting an optional current probe to measure the actual current in the track.</p><p>The S8964B\'s working principle is based on the transfer of power between the two communicated components, where each component gives a precise output voltage for a given input current. By connecting a load to the output, the power transferred between the components is balanced providing a linear relationship between the input and output signal. This linear relationship is relied upon to provide accurate and reliable control of track current, allowing the system to be safely and efficiently managed.</p><p>The S8964B family of devices is used commonly in rail, metro and urban light rail systems, providing an isolated and reliable communication of current and voltage signals between high and low voltage tracks. It is also used in other applications such as train signal crossing, train detector systems, tunnel communication systems, and other systems that require both current and voltage signals to be transmitted across different track levels.</p><p>The S8964B family of devices is a reliable, precise, and affordable solution for rail signals, and is designed to meet the demands of applications within the rail and metro industries. The advanced design ensures reliable and accurate operation, while also providing a high degree of noise immunity. Designed to meet the needs of rail applications, this family of devices is the perfect solution for reliable, accurate, and cost-effective communication between high and low voltage tracks.</p>

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