Grass Valley 2020ADC A-To-D User Manual

Page 15

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2020ADC — Instruction Manual

15

Power Up

A red FAULT LED indicates an error situation and, with the other LEDs,
can indicate the operational conditions presented in

Table 3

. The table

describes signal output and LED indications for various input/reference
combinations and user settings.

Table 3. Indicator LEDs and Conditions Indicated

LED

Indication

Condition

FAULT

(red)

Off

Normal operation.

On continuously

Module has detected an internal fault.

Flashing

Reference input is faulty or not present.

COMM

(yellow)

Off

No activity on frame communication bus.

Long flash

Location Command received by the module from a remote control system.

Short flash

Activity present on the frame communication bus.

CONF

(yellow)

Off

Module is in normal operating mode.

On continuously

Module is initializing, changing operating modes or updating firmware. Simultaneous
CONF and FAULT LEDs on indicate FPGA load error.

Flashing

Indicates rate of change of paddle-controlled analog setting.

PWR

(green)

Off

No power to module or module’s DC/DC converter failed.

On continuously

Normal operation, module is powered.

REM OVER

(yellow)

Off Module

configuration

matches switch and jumper settings.

On continuously

Module configuration may not match switch and jumper settings. Control has been
remotely overridden.

LOCK

(green)

Off

Module does not detect a valid AES in reference signal.

On continuously

Valid AES in reference signal is present and module is locked to it.

20 dB

CH1-4

(green)

Off

Channel level is less than -20 dBFS.

On continuously

Channel level is greater than -20 dBFS.

Flashing

Channel level is transitioning through -20 dBFS

CLIP

CH1-4

(red)

Off

Channel digitized signal level is less than -0.5 dBFS.

On continuously

Channel digitized signal level is greater than -0.5 dBFS.

Flashing

Channel digitized signal level is transitioning through -0.5 dBFS.

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