Audio clock signals, Chapter 3 mechanical installation – Grass Valley PDR100 User Manual

Page 64

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Chapter 3 Mechanical Installation

3-40

PDR100 Installation

Audio Clock Signals

The only clock signals available on the Analog Composite Output circuit board are
system clocks (27 MHz). There are four identical buffered clock signals available,
enough to have one clock signal for each of the output channels. In most cases not all
will be used. The example shown in Figure 3-37 has only one Audio I/O circuit board,
which is located adjacent to the Composite Analog Output circuit board. With longer
cables, the clock signals can be routed to other Audio I/O circuit boards located some
distance from the Analog Composite Output circuit board.

Figure 3-37. Audio Clock from Analog Composite Output Circuit Board

J3

Channel 1 Filter
Output

Jumpered

Jumpered

Corrected

Open

Open

J6

Channel 2 Filter
Output

Jumpered

Jumpered

Corrected

Open

Open

J15

Channel 3 Filter
Output

Jumpered

Jumpered

Corrected

Open

Open

J14

Channel 2 Filter
Output

Jumpered

Jumpered

Corrected

Open

Open

Table 3-15. Analog Composite Output Plug Jumpers (Continued)

Jumper

Name

Position

Factory- Installed

Operation

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