D&R AXUM Manuel d'utilisateur télécharger pdf (Page 20)

Triple Dig Input Module

Airlab from D&R Phone +31 294 418014, email: [email protected] Page 20

A. COUGH / REMOTE / SIGNALING IN MIC MODE

This useful feature has two important functions:

1. Cough/Communication,

2. 'MIC-on' (CUE on)

Both functions are software programmable.

1. Cough/Communication

(A push-button needs to be connected to the ring and sleeve of the remote jack plug.)

Using the push-button during broadcast, the announcer can temporarily mute the

microphone in order to cough (where the name comes from). At the same time his

microphone will be routed to the CUE system, in order to give him the opportunity to

communicate with the engineer/producer. Cough works on every programmed mic input.

2. 'MIC-on'

When the channel is active a voltage is applied between Tip (+) and Sleeve (0V),

which can be used to activate a LED (red) or an opto-coupler.

In addition to the localized 'mic-on' signaling, there's also a master signal in the

master section. The ON-AIR signaling outputs 1 and 2 offer the option of driving

external red light indicators in the studio by way of external high voltage relays.

B. REMOTE/SIGNALLING IN LINE MODE

In this mode CUE can be switched on/off via a remote external push-button.

When the channel is active a voltage is applied between Tip (+) and Sleeve (0V),

which can be used to activate a LED (red) or an opto-coupler.

Alignment of the MIC input

With the fader in the 'down' position, and the CUE activated, the input signal is adjusted with the gain

control until the 0 dB position in the master VU meter is reached. When the fader is in its 0 dB position, the

signal has a nominal level in the Airlab. This way of alignment will give enough headroom to compensate

for signal losses of up to 10 dB, whilst the noise floor remains well below the nominal level.

Airlab Dig Line input module

This part of the triple input module is specially designed to accept balanced (AES3) and unbalanced (S/P-

dif) digital input signals. There are two digital inputs; line A (AES3) and line B (S/P-dif). Both inputs can

have fader start functions. By changing software settings this can be accomplished.

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D&R AXUM Manuel d'utilisateur Page 20