RME OctaMic II handleiding
Handleiding
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User’s Guide OctaMic II © RME
9. External Synchronization
The digital inputs of the OctaMic II serve external synchronization only. In case the clock shall not
be generated internally (operating mode Master), an external synchronization (operating mode
Slave) is available via word clock or AES (SPDIF).
The LED between the two ADAT sockets provides information about the boot process (fast flash-
ing, slower flashing, off) and the synchronization status. If neither a Word nor AES signal is pre-
sent in External Clock mode, the LED flashes constantly, as it does if the sample rate is incorrect
or the signal is faulty. If synchronization is successful, the LED lights up constantly.
The SteadyClock technology of the OctaMic II guarantees exceptional performance in all clock
modes. Thanks to a highly efficient jitter suppression, the AD-conversion always operates on
highest sonic level, being completely independent from the quality of the incoming clock signal.
When the current word clock source fails, the last valid sample rate will be held automatically.
9.1 Word Clock - BNC
The word clock input is activated by DIP switches 1 and 2. Both switches must be set to their
lower position. Thanks to RME's Signal Adaptation Circuit, the word clock input still works cor-
rectly even with heavily mis-shaped, dc-prone, too small or overshoot-prone signals. Thanks to
automatic signal centering, 300 mV (0.3V) input level is sufficient in principle. An additional hys-
teresis reduces sensitivity to 1.0 V, so that over- and undershoots and high frequency disturb-
ances don't cause a wrong trigger.
The word clock input is shipped as high impedance type (not terminated). A push switch allows
to activate internal termination (75 Ohms). The switch is found beside the BNC socket. Use a
small pencil or similar and carefully push the blue switch so that it snaps into its lock position.
Another push will release it again and de-activate the termination.
Due to the outstanding clock control a synchronization of the output signal to the input signal is
not only possible at identical sample rates, but also at half, quarter, double and quad sample
rates.
Example 1: DIP switch 3/4/5 in upper position results in a sample rate of 44.1 kHz. The external
synchronization source (word clock or AES) can now be 44.1 kHz, 88.2 kHz or 176.4 kHz.
Example 2: DIP switch 3/5 in lower position results in a sample rate of 192 kHz. The external
synchronization (word clock or AES) source can now be 48 kHz, 96 kHz or 192 kHz.
9.2 AES – D-Sub
Using the D-sub connector, an AES, AES/EBU or SPDIF signal can be used for synchronization.
Set DIP switch 1 to the upper position and DIP switch 2 to the lower position. The OctaMic II's
synchronization input uses AES 1 (see chapter 11.1). The input is transformer-balanced and
ground-free. With AES synchronization is possible not only at identical sample rates, but also at
half, quarter, double and quad sample rates.
Thanks to a highly sensitive input stage, a
SPDIF signal can also be fed by using a sim-
ple cable adapter phono/XLR. To achieve
this, pins 2 and 3 of an XLR plug are being
connected to the two contacts of a
Phono/RCA plug. The ground shield of the
cable is only connected to pin 1 of the XLR
plug.
Bekijk gratis de handleiding van RME OctaMic II, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | RME |
| Model | OctaMic II |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 3434 MB |
