Technical data
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2 S/PDIF COAX IN
These four input interfaces receive an unbalanced, digital audio or empty 
frame signal in coaxial S/PDIF format, electrically based on the specifications 
of the IEC 60958 standard (cinch connector). The input impedance is 75 Ω.
3 S/PDIF OPT IN
This input interface receives a digital audio signal in S/PDIF format, optically 
based on the specifications of the IEC 60958 standard (Toshiba Toslink
TM
connector, EIAJ standard).
4 AES/EBU OUT
This interface transmits the mix signal in balanced, digital AES/EBU format, 
electrically based on the specifications of the AES 3-1992 standard (R1997). 
The output impedance is 110Ω (XLR connector, male).
5 WORD CLOCK IN / OUT
This input receives a Word Clock or Word Clock x 256 clock signal (known as 
Super Clock for ProTools
TM
 systems) to synchronize the SMART MERGE.
6 230V (115V)
The mains voltage fuses are located behind this shutter. These must be 
inserted properly according to the voltage of the country in which the 
unit is to be used! Please consult the safety tips, particularly the section 
entitled »Initial Operation« as well as the section »Changing the Mains 
Voltage Fuses« found in the appendix.
7 SWITCH
This is the main on/off switch for turning on the power supply to the 
unit. The main on/off switch should only be set to its ON position after 
complete and professional wiring of the unit. In particular, ensure that 
the enclosed power cord is properly connected and that the correct 
voltage for the country has been selected (it may be necessary to 
change the mains voltage fuse). Please consult the safety tips for more 
information.
8 MAINS INPUT
Connect the enclosed power cord here. Before plugging the cable into 
the mains input and wall outlet, ensure that the main on/off switch is 
turned off and that the correct fuse, according to the country-specific 
voltage, is inserted.
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