Grass Valley 2020DAC D-To-A - Manual (Page 14)

8 2020DAC Instruction Manual
2020DAC 4-Channel Audio Digital to Analog Converter
Configuration and Adjustments
Configuration and adjustment items for the 2020DAC include:
■ Output mode – channel swapping, summing, or phase inversion,
■ Control mode – Local/remote or local control only (remote lockout),
■ Output gain levels– coarse and fine adjustment,
■ 20-bit or 24-bit DAC mode, and
■ Input select – balanced or unbalanced audio inputs.
The Control Mode, Output Gain, DAC modes and Input Select must be
configured locally using onboard jumpers and switches. Output Mode can
be set locally with the front rotary switch or can be configured remotely
with the network interface.
Local On-board Module Configuration
All 2020DAC module parameters can be configured locally using the
jumpers and rotary switches described below and shown in
Figure 7 on
page 9 . The CONF LED indicates status of the configuration process.
These components perform the following:
■ Jumpers JP1 – JP4 set High/Low range of gain adjustment for each
channel.
■ Jumper JP7 sets control mode for Local only or Remote and Local.
■ Jumpers JP8 and JP10 set the DAC mode to 20- or 24-bit.
■ Jumpers JP9 and JP11 set the input selection of the module to balanced
or unbalanced.
■ Function (rotary) switches SW2 (CH1/2) and SW 2 (CH3/4) select the
desired output configuration (0 through 9, A through F), although not
all positions are used.
■ CH1 – 4 LEVEL Potentiometers set the fine gain of each channel.
■ CONF (configuring) LED, when on, indicates the module is initializing
or processing configuration information.
Note Function switch positions 0 and F (Factory defaults) can be used to return the
module configuration to the original factory settings.