Ross ADA-8504, Руководство пользователя

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Overview
The RossGear ADA-8504 Dual Reclocking AES Distribution Amplifier is a program stream digital
audio reclocking distribution amplifier specifically designed for use in 75-ohm coaxial (SMPTE 276M
or AES-3id) systems. By moving an on-board jumper, the ADA-8503 can be set as a single
distribution amplifier; or as a dual amplifier. The single configuration provides one input and eight
outputs, while the dual configuration provides the first amplifier with one input and four outputs, and
the second amplifier with one input and three outputs. The ADA-8504 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-8504 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-8503 also fits Leitch
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6800 series frames.
The ADA-8504 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. ADA-8504 performs reclocking in a two-stage process that develops a stable, low
jitter output.
The ADA-8504 is part of a growing line of RossGear AES solutions that includes distribution,
conversion, and monitoring products. Designed and manufactured to meet the highest quality
broadcast industry standards, the RossGear ADA-8504 is an ideal, flexible, and cost effective solution
for digital audio distribution requirements where reclocking is required.
Functional Block Diagram
Figure 1. Simplified Block Diagram of ADA-8504 Functions
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Leitch is a trademark of Leitch Technology Corporation
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Introduction ADA-8504 User Manual (Iss. 03)