Antelope OCX-V, Руководство пользователя

Страница: 6 / 16

4
Front Panel:
Power Switch
Source Knob
Designates which input the OCX-V receives its timing reference from. The first five
options correspond to physical inputs on the back of the unit. The final setting, OVEN,
configures the OCX-V to use its internal, oven controlled crystal oscillator as timing
reference, with one exception. The OVEN setting is also used to slave the OCX-V to
incoming atomic clock; the device will do so automatically, if an incoming atomic clock
signal is present.
Directly above the SOURCE knob is a red LED. When lit, it verifies a valid source
signal is present at the selected input. When flashing, it means the selected input is not
receiving a signal, or the incoming signal is not at a valid frequency.
More discussion about what constitutes a valid frequency is found in SAMPLE RATE
Knob section.
Sample Rate Knob
Determines the frequency of the Word Clock, AES/EBU and S/PDIF utputs on the back
of the unit. The first seven choices are specific sample rates, which will be generated
regardless of the incoming reference frequency. When the sample rate does not match
the incoming reference frequency, the OCX-V operates in gearboxing mode, which is
explained in greater detail later in the manual.
The final setting of the Sample Rate Knob is DA (Distribution Amplifier). In the DA
there is no gearboxing functionality. The OCX-V simoly takes the incoming audio
clock selected by the Source Knob , puts it through the Jitter Management Module
to regenerate a clean, de-jittered signal that is distributed to all audio outputs. In DA
mode, the outgoing sample rate will always match the incoming reference.
Front Panel
2 3 4 5 6 8 7 9 10