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Configuration, Configuration summary, Analog audio inputs – Grass Valley 8921ADT User Manual

Page 16

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16

8921ADT Instruction Manual

Configuration

Configuration

The 8921ADT can be configured locally using onboard switches or
remotely using the 8900NET network interface GUI or a networked control
panel. Operation of these control types is explained in detail in their respec-
tive sections of this manual.

Refer to the following sections for configuration instructions:

Configuration Summary (

page 16

)

Local Onboard Module Configuration (

page 25

)

Remote Control and Monitoring (

page 28

)

Control Panel Configuration (

page 45

)

Configuration Summary

This section provides a summary of all parameters that can be configured
on the 8921ADT module. Use this section in conjunction with the specific
configuration method instructions for each configuration type.

Table 4 on

page 22

provides a summary in table format of all parameters and their

ranges, default values, and remote, local, and control panel function names
and locations for setting each value.

For a functional block diagram and an overview of the module stages, refer
to the

Functional Description

on page 48

.

Analog Audio Inputs

The maximum signal level of the analog inputs (before clipping and distor-
tion occur) should be set for full-scale digital outputs (0 dBFS). This level
can be adjusted from 0 to +30 dBu. Each input can be adjusted individually
or locked together in two groups, Inputs 1 and 2, and Inputs 3 and 4. When
locked together, any gain offsets are preserved between channels.

It is helpful before making any input level adjustments to have the module
set up for factory default audio values. This will assure that no summing,
phase inversion, or channel swapping is occurring on the outputs and will
set the module with the following factory defaults:

Maximum input levels to + 24 dBu = 0 dBFS.

Output gains to 0 dB

Delay to 0 sec

Input mapping to Inputs 1, 2 = AES 1 A, B, Inputs 3, 4 to AES 2 C, D

To quickly access these defaults, select position F on the front panel Control
rotary switch on Bank 2 then activate the paddle switch in the up direction.