User manual

Airlab Jumper Settings
Airlab from D&R Phone [phone], email: [e-mail] Page 42
Figure 13: Triple Dig Module Phantom Power Jumper settings
Figure 14: Triple Dig Module Digital Output Select Jumper and Digital Output Level trim
Figure 15: Triple Dig Module FCLK-Select (PLL or Fixed)
Digital Output settings:
Dependent on the jumper setting the output is giving the stereo PROG signal or the stereo SUB-signal.
Normally the output level is -9dBFS but the level (headroom) can be adjusted by VR2 and VR3.
The digital output frame clock (sample rate) can be setup in two different ways by an internal jumper
setting.
1: PLL. Output Frame Clock (sample rate) is identical to the clock signal of the digital input
(Select by the ‘Line B’ switch, 32..96 kHz). If the digital-input is not in lock (no input signal
or a wrong signal) the Output Frame Clock will jump back to 44.1kHz.
2: Fixed. Output Frame Clock (sample rate) is always 44.1kHz
ATTENTION: In the ‘PLL’ mode the digital output signal will be muted shortly if you change the
digital input selection (‘Line B’ switch) or if the digital input loses its lock.