About commlink tr6442i, About this user guide – Grass Valley TR6442i User Manual
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About CommLink TR6442i
About CommLink TR6442i
About CommLink TR6442i
CommLink™ TR6442i Intercom Link is a fiber-optic transceiver system that uses one strand of
fiber to carry two channels of production intercom, allowing robust voice and data
connectivity over distances up to 40KM (about 25 miles). The CommLink utilizes Wavelength
Division Multiplexing (WDM) for bidirectional signal transmission on a single fiber strand.
Hence, all fiber links must consist of a 1310nm unit at one end and a 1550nm unit at the
other. See
Wavelength-Division Multiplexing (WDM)
on page 7 for information about
Wavelength-Division Multiplexing (WDM) and the use of CommLink units.
The CommLink is compatible with the industry's most popular intercom systems:
• Party line
• Clear-Com®
• RTS® TW
• Digital Matrix
• Clear-Com® MatrixPlus/Eclipse
• RTS® Adam/Cronus/Zeus
• Generic 4-Wire and Data
• Two Channels of bidirectional audio
• Two paths of bidirectional dataRS422 or RS485
In a special usage case, multi-strand fiber optic cable can be used to more than one signal -
one to the CommLink TR6442 and one carrying HD Video (see
Fiber Optic Intercom Link Usage Scenarios
About this User Guide
This User Guide is designed to cover all of the various options, so not every page in this
guide will apply to your specific system.