Slot x: 4 Channel AEC Input (orange)

This card has been discontinued.

Default display (advanced subchannel mapping switched off)

Bundle (TX/RX)

The bundle number that identifies a group of sub-channels.

Each bundle can manage between 1 and 8 channels. The range is 0 to 65,535 (0 is off). For multicast bundles, the number must be in the range 1 to 255. For unicast bundles, the number must be in the range 256 to 65,279. Numbers in the range 65280 to 65535 are reserved and cannot be used.

As the CAB 4n cards only support 4 channels, the extra slots are not used.

Transmitter

Lit (green) when data is being transmitted on one or more of the subchannels in the bundle.

Reference

Input channel number (1 or 2) to use for the AEC reference signal. This is the signal from the far end (microphone).

Input

Mute

Mutes the channel.

Phantom

Enables the phantom power feature which supplies power to a microphone via the audio cables attached to the device. This feature is used for condenser microphones.

Gain

Sets the amount of amplification or attenuation to be applied to the signal.

The valid range is -65dBu to +20dBu.

Coarse Gain

Allows gain adjustment in steps. Settings are 0dB, 25dB and 55dB.

AEC Enable

Switches on echo cancellation for the channel.

AEC Level

Can be set to None (off), Soft, Medium or Aggressive to control the speed of convergence.

Tip: We recommend that you test out these options carefully when configuring your system to see which gives the best performance.

NC Enable

Enables noise cancellation.

NC Level

Noise cancellation level. Settings are 0dB, -6dB, -9dB and -12dB.