I/O-22 Line Out Component

Amplifier

Turns the I/O-22 amplifier on or off for the Speaker output on the I/O-22 hardware. The Speaker output is on Channel 2 only. The amplifier provides a powered output to the "SPEAKER" connector. A line-level output is provided on the "LINE OUT 2" connector. Turning this on or off has no effect on the LINE OUT 2 on the hardware.

Limiter Active

This LED is illuminated if the Limiter is active.

Peak Output Level (dBu)

Measures Peak Output level to the output device

Relay Mute

Mutes the output after the D-A converter and before the output. In addition, the amplifier is turned off.

Max RMS Output Level (dBu)

Controls the analog RMS output level after the D/A converter. This level is typically set slightly lower than the destination's sensitivity or maximum input level in order to avoid clipping the signal of a power amplifier. Varies in direct proportion with Output Gain.

Output Gain (dB)

The amount of gain applied to the outgoing analog signal. Varies in direct proportion with the Max RMS Output Level.

Peak Output Level (dBFS)

Measures the Digital Signal level prior to the D/A converter.

Clip

Red LED indicating if the signal is being clipped.

Clip Hold

Holds the clip indication until manually cleared.

Invert

Inverts the audio signal.

Mute

Mutes the digital audio signal.

Gain

Controls the gain of the digital audio signal prior to the D/A converter.

Status LED

This LED changes color to indicate the current status of the I/O-22 Output. See Status for the meanings of the various colors.

Status

Displays the current status of the amplifier both in text and color. The following is a list of possible status colors, and some example conditions.

Note: These conditions are examples, and may not be applicable to all components with a Status field.

OK – Green – (0) – Audio is good, hardware is good.

Compromised – Orange – (1) – Audio is good but a redundancy mechanism is active (one LAN down but the other is still up) or a non-fatal hardware problem exists (fans too slow, temperature higher than expected, etc.)

Fault – Red – (2) – Audio is not passing, or hardware is malfunctioning or mis-configured (amplifier power off, audio streams broken, wrong type of I/O Card installed, loudspeaker short circuit, etc.)

Missing – Red – (3) – A piece of hardware, defined in the design, has not been discovered. Audio is not passing through that piece of hardware.

Initializing – Blue – (5) – In the process of firmware, configuration update, and design start. Audio is obviously bad.

Not Present – Gray – A virtual component in the design, that is designated as Dynamically Paired, and Not Required ,has no hardware assigned to it.

Analog Level
(Peak Output Level (dBu)) meter

-120 to 24

-120dB to 24dB

0.000 to 1.00

Clip (LED)

0

1

false

true

0

1

Clip Hold

0

1

false

true

0

1

Digital Level
(Peak Output Level (dBFS)) meter

-120 to 43

-120dB to 43dB

0.000 to 1.00

Gain

-100 to 20

-100dB to 20dB

0.000 to 1.00

Invert

0

1

normal

invert

0

1

Max Level (dBu)

-40 to 21

-40.0dBu to +21dBu

0 to .988

Mute

0

1

unmute

mute

0

1

Output Gain

-31 to 0

-31 dB to 0 dB

0.000 to 1.00

Output Mute

0

1

unmute

mute

0

1

Status

0

1

2

3

4

OK (green)

Compromised (orange)

Fault (red)

Unknown (red)

Updating (blue)

0

0.250

0.500

0.750

1.00