Overview
The RossGear AES ADA-8501 Reclocking Distribution Amplifier is a one input, eight output program
stream digital audio reclocking distribution amplifier and was specifically designed for use in 75-ohm
coaxial (SMPTE 276M or AES-3id) systems. The ADA-8501 reclocks incoming data at 32, 44.1, 48,
88.2, and 96kHz sampling rates and provides automatic cable equalization for lengths beyond 610m
(2000 ft.)
The ADA-8501 fits into Ross 8000A series digital frames, the DFR-8110A (2RU) and the DFR-
8104A (1RU), and provides system builders with the ability to easily distribute digital audio within a
facility. The ADA-8501 also fits Leitch
6800 series frames.
The ADA 8501 has been designed with the capability to report a variety of AES signal errors
including No Lock, Coding, Parity, CRC, and Validity. These errors are indicated on a card edge
LED. In addition, there is SMPTE 269M Fault Reporting output to the back of the Ross frame.
A reclocking amplifier is the preferred method of distribution for long coaxial runs to reduce jitter in
the data stream. The ADA-8501 performs reclocking in a two-stage process that develops an output
which is stable and noise-free.
The ADA-8501 is part of a growing line of RossGear AES solutions that includes distribution,
conversion, and monitoring. Designed and manufactured to meet the highest quality broadcast
industry standards, the RossGear ADA-8501 is an ideal, cost effective solution for digital audio
distribution requirements where reclocking is required.
Functional Block Diagram
Figure 1. Simplified Block Diagram of ADA-8501 Functions
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Leitch is a trademark of Leitch Technology Corporation
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Introduction
ADA-8501 User Manual (Iss. 03)
Summary of Contents for ADA-8501
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