Proceed PMDT - Manual (Page 22)

22
Warning! Connecting the communication ports other than as
described in this manual can damage the PMDT and the
associated Proceed components, and will void those
products’ warranties.
3 BLANK SLOT (FOR FUTURE USE)
What good would expansion slots be if they were all full? There would
be no room to expand. This slot is reserved for possible future audio
applications.
4 DIGITAL AUDIO OUTPUT CARD
The PMDT is a “transport” rather than a “player.” That is, it provides digi-
tal audio outputs, but no analog audio outputs, under the reasonable as-
sumption that people purchasing this product already have sophisticated,
good-sounding audio/video preamplifiers such as the Proceed AVP/AVP2
(or similar). After all, how many times do you want to have to pay for
high-quality digital-to-analog conversion?
Since we have no way of knowing what type of digital output you may
require, we provide you with four choices. You only need to use one,
and may pick whatever matches the needs of your system. From the top
down (physically):
EIAJ (“Toslink”) : This output provides the digital audio signal (DAS) via
optical cables equipped with EIAJ-type connectors to the processor.
S/PDIF on RCA: This output provides the digital audio signal (DAS) via
cables equipped with RCA-type connectors to the digital processor.
S/PDIF on BNC: This output provides the digital audio signal (DAS) via
cables equipped with BNC-type connectors to the digital processor.
The previous two outputs conform to the Sony/Philips Digital Interface
Standard (S/PDIF), which calls for a 75
Ω transmission of the DAS. We
recommend using a digital interconnecting cable specifically designed for
the 75
Ω S/PDIF standard, such as Madrigal MDC-2 cable, when using
these outputs. (In our experience, a BNC-terminated S/PDIF cable has a
slight advantage over the same cable terminated with RCAs. This is prob-
ably due to the fact that a BNC connector can have a true 75
Ω imped-
ance, whereas RCA connectors cannot.)
AES/EBU: This output provides the digital audio signal (DAS) via cables
equipped with XLR-type connectors to the digital audio processor.
This output conforms to the Audio Engineering Society/European Broad-
cast Union (AES/EBU) professional digital audio standard, which calls for
a 110
Ω transmission of the DAS. Use a digital interconnecting cable spe-
cifically designed for the 110
Ω AES/EBU standard, such as Madrigal
MDC-1 cable, when using this output, with pin assignments as follows: