User Manual
    Connecting to the Audio Interface 
  24 
Connecting to the Audio Interface 
Word Clock (AudioFire 8, AudioFire Pre8 and AudioFire 12) 
Next to the MIDI ports are the Word Clock connectors. These connectors allow 
you to synchronize your Echo product to any other device equipped with a Word 
Clock connector. 
The Word Clock I/O uses a BNC connector. As with the S/PDIF I/O, a shielded 
75-ohm (RG-59) coaxial video cable should be used. BNC connectors have been 
widely used in the electronics industry for both video and computer networking. 
However, computer networks use 50-ohm (RG-58) coaxial cables and not the 75-
ohm (RG-59) cable used by video. For reliable word clock operation, use only 
video grade cables with your Echo product. 










