User's Guide
WCM MKII © RME
7
9.3 Erweiterte Modi – DIP-Schalter
Using 4 so called DIP switches allows you to activate several modes, making the
WCM
more
flexible than ever before. Input and output can be set to single or double speed mode inde-
pendently. An internal termination can also be activated. Therefore T-connector and BNC-
terminator are no longer necessary. The internal clock generator can operate not only at 44.1
kHz, but also at 48 kHz. Thanks to the single/double mode of the input also 88.2 kHz and 96
kHz are provided internally
The switches can be set easily with a pen or small screw driver. Note that when installed in
usual computers the switches are reversed. ON is the upper position then.
S1: Termination of the Word Clock Input
S1 = OFF: no termination. S1 = ON: terminated with 75 Ohms. A T-adapter and a 75 Ohm
BNC terminator are no longer required.
S2: Doubling the Input Frequency
The DIGI96 series’ word clock is always linear to the sample rate, whereas in the professional
area the Double Speed mode (88.2 and 96 kHz) will sometimes be based on half word clock
frequency (for example in Double Wire mode). With S2 = ON the WCM internally doubles the
incoming word clock. So when feeding 44.1 kHz the DIGI96 connected to the WCM will operate
at 88.2 kHz, 48 kHz will cause operation at 96 kHz.
S3: Test Mode 44.1 kHz / 48 kHz
In Test mode the WCM provides a quartz-based, internally generated word clock. S3 = OFF
equals 44.1 kHz, S3 = ON 48 kHz. S2 allows to double these values to 88.2 and 96 kHz.
S4: Dividing the Output Frequency by 2
In Double Speed mode playback the DIGI96 series will provide 88.2 and 96 kHz at the word
clock output. S4 = ON divides the outgoing word clock by 2, to 44.1 or 48 kHz respectively.
