Utility Module Prev039/3/1; Overview; Connection - Prism Sound ADA-8XR Module Reference

Prism Sound ADA-8XR Multi-channel A/D D/A Converter

2 Utility Module PREV039/3/1

2.1 Overview

The Utility Module is fulfils a number of miscellaneous I/O functions:
• Stereo analogue Monitor output;
• Stereo digital Monitor output;
• AES11 Reference Sync Input and Output;
• Wordclock or video Reference Sync input;
• Wordclock or Superclock (256xfs) Reference Sync output;
• Serial COM port, RS-232, RS-485 or MIDI format;
The Utility Module is different from the analogue and digital I/O modules described elsewhere
in this manual, which can be interchangeably fitted to the I/O slots. The Utility Module is fitted
inside the ADA-8XR chassis, and is connected with flying leads to the Utility Panel on the
right-hand side of the rear panel (when viewed from the back).
It is unlikely that the user will ever need to replace or reconfigure the Utility Module,
and the information in section 2.3 is provided for information only.
WARNING: Replacing or reconfiguring the Utility Module requires removal of
the top cover of the ADA-8XR. This operation presents a risk of electric
shock, therefore refer this operation to qualified personnel.

2.2 Connection

AES11 (DARS) Reference Sync input and output are provided on female and male XLR
connectors respectively. The AES11 output impedance is 110 ; the input impedance is
normally 110 , but the input termination can be removed via an internal jumper (as described
below) to allow multiple inputs to be daisy-chained if required. Note that operation of the
AES11 Reference Sync input is currently restricted to frame rates between 32kHz and 96kHz.
The stereo output of the Monitor is available in both analogue and digital formats. The
analogue outputs are on phono (RCA) connectors, but are balanced (see the jumper options
below). The digital output is in AES3-id format on a BNC connector.
The Serial COM port is on a 9-pin male 'D' connector, and is configured by default as RS-232
with PC-compatible pinout allowing it to be connected to a PC using a null-modem cable.
Other formats such as RS-485 and MIDI may be configured by jumpering as described below;
see the Firmware Reference for details of support for these other formats.
© Prism Media Products Limited, 2001-2005
Wordclock Reference Sync input and output are provided on BNC
connectors. The input impedance is normally 75 , but the input
termination can be removed via an internal jumper (as described
below) to allow multiple inputs to be daisy-chained if required.
The input is also able to accept a 75 AES3-id reference, or an
analogue video reference (PAL, NTSC or NTSC30). The output
can be set to produce a Superclock (256xfs clock) instead of a
Wordclock, if required, principally for use in Pro Tools
applications. These selections are made through the Menu
System, as described in the Firmware Reference.
Module Reference - Revision 1.01
Page 3.6