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1 mounting, 2 audio connections, 1 s/pdif input – Dolby Laboratories DP503 User Manual

Page 31: 2 aes/ebu input, 3 analog input

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SECTION 4

INSTALLATION AND LEVEL CALIBRATION

Note

For Dolby Fax connections, see Section 4.4 below for additional information. An overview of the
Dolby Fax system is provided in Section 2A.

4.1

Mounting

The DP503 is designed for 19 inch rack mounting, but may be mounted in any
plane and with any orientation. It occupies 1U (1 3/4") of space.

When mounting the unit, ensure that there is air flow around it, and that it is not
mounted directly above any equipment generating high amounts of heat. The unit
will operate within specifications up to a maximum ambient temperature of 50º C
(122º F). Note that the ambient temperature inside a poorly-ventilated rack may be
considerably higher than that in the room.

4.2

Audio Connections

Note

Detailed connector and pinout specifications can be found in Appendix A. See the rear panel figure
located at the end of section 5.

4.2.1

S/PDIF Input

Connect the S/PDIF digital audio input to the DP503 input J104 S/PDIF using 75
ohm shielded cable. With its built-in sample rate converter, the DP503 can
accommodate any sampling rate between 32 kHz and 48 kHz.

Note:

To maintain better mechanical and electrical integrity, the rear panel connector on the DP503 is a
BNC female connector rather than the typical phono jack normally encountered in S/PDIF
installations.

4.2.2

AES/EBU Input

Alternatively, connect the AES/EBU digital audio input to the DP503 input J103
AES/EBU using a balanced and shielded audio cable with a male XLR connector.
With its built-in sample rate converter, the DP503 can accommodate any sampling
rate between 32 kHz and 48 kHz.

Note:

The AES/EBU and S/PDIF inputs cannot be used simultaneously. If connections are made to both
inputs, neither will function.

4.2.3

Analog Input

Alternatively, if using the analog inputs, make connections at the DP503 analog
inputs J101Ch A and/or J102 Ch B which are provided with industry-standard
XLR female connectors.

Note

When operating in single channel audio coding modes, only audio from Channel A is used.

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