Link Electronics PTC-892 Closed Caption Encoder/Decoder, SD SDI/Analog, CV, CAV, Y/C with LTC

The PTC-892 Closed Caption Encoder/Decoder, a sophisticated product from Link Electronics, is an advanced solution for inserting, decoding, and recovering caption text data for NTSC/PAL signals. This high-tech device is compatible with a variety of signals, including composite, Y/C, S-video, RGB, and YUV I.

Designed for optimal functionality, the PTC-892 allows for caption text to be encoded in either field of the Vertical Blanking Interval (VBI). The inserted data can be displayed as open captions through the decoder output(s). Additionally, it can recover caption data from either field of the VBI on the incoming or outgoing video, making it an innovative tool for broadcasting applications.

The PTC-892 stands out with its ability to perform encoding, decoding, and data recovery simultaneously. These functions can be controlled either through the front panel menus or by serial communications. It features inputs and outputs for both I analog, including composite, Y/C, S-video, YUV, and RGB.

In case of power loss, the PTC-892 has a feature that bypasses the composite analog I, ensuring uninterrupted operation. It also incorporates a weather-lift feature that moves the caption up to 4 lines when a contact-closure is detected on its GPI input. This feature is designed to ensure that captions do not interfere with emergency crawls, in compliance with FCC requirements.

The PTC-892 offers remote captioning through its dual serial communication ports, allowing for multiple encoders to be controlled at once. It also features a front panel with LEDs that display the unit status, including NTSC/PAL detection, modem status, encode on/off, video presence detection, negative pedestal on/off, serial data detection, and LTC detection.

This state-of-the-art encoder/decoder is V-chip technology compliant and TSID ready, with the ability to interweave "VChip" data with existing line 21 closed captioning data. It also includes a Longitudinal Time Code (LTC) input for precise caption timing with the video. The front panel Vacuum Fluorescent Display (VFD) and a rotary optical encoder provide easy selection of various operating set-up functions.

In summary, the PTC-892 Closed Caption Encoder/Decoder is a versatile, high-quality product that offers a comprehensive solution for encoding and decoding closed caption signals in television broadcasting.