Grass Valley PDR100 - Manual (Page 38)

Chapter 3 Mechanical Installation
3-14 PDR100 Installation
Connecting the XLR100 Audio Bypass Unit
The Audio Input/Output circuit cards can be located in most slots from 3 to 13. Audio
cards are labeled by Banks. Each of the rear panel audio I/O connectors provides four
inputs and four outputs from and to a bank of audio through the XLR100 Audio
Bypass Unit. See Figure 3-15. Connections shown here are for four full banks of
audio. In addition, any cable that adapts the 25-pin sub-miniature D-type (DB-25)
connector to XLR connectors can also be used.
Figure 3-15. Audio Cabling Between the XLR100 and the PDR100 Audio I/O Cards
Pin number assignments for the PDR100 rear-panel Audio DB-25 connectors are
shown in Table 3-2, “Pin Assignments for the DB25 - XLR Adaptor Cable,” on
page 3-12.
In addition to the audio bypass unit, an eight-connector breakout cable can be used to
bring the audio signals into the PDR100 audio interface. Figure 3-13 shows one of
two optional cables. The XLR connectors are labeled to correspond with the Input and
Output Channels shown in Table 3-2. The other cable is 20 feet long with a DB25
connector and tinned leads.
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