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BCN cable for wordclock - Impedances and types
Old 19th January 2013
  #1
Gear Maniac
 
distante's Avatar
 
🎧 10 years
BCN cable for wordclock - Impedances and types

Hi to all!

I just did some connections with my UR824 and I hook up a Focusrite Oktopre and a crappy digital mixer into the ADAT inputs of the 824, I used the Oktopre for master clock (since it only can send clock for ADAT or receive for WordClock).

The thing is that sometimes I will need to keep the Oktopre off, send clock from the 824 turn and turn on the mixer (because I use the mixer as a remote Midi controller), and I for any reason I had to turn on the Okto in a middle of a session all the syncro get screw.

So since the mixer and the Oktopre had wordclock ins/outs I think would be better (and less messy) if I just send the clock using the BNC workclock outputs in the 824, I never used BNC cables for Clock (always used ADAT!) So I'm not sure of what to buy.

For what I remember, the impedance of the cable/connectors must be of 75ohms, there's a neutrik connectors with 75ohms so I will use them, but what cable refers I'm really lost.

A friend who uses BNC for video told me about the RG59 and RG6 cables (both 75ohms) but I don't know what's the difference between use one or other in clock applications.

Any of you guys can share your experience with this?

Cheers!
Old 19th January 2013
  #2
Deleted a08cf2a
Guest
RG6 Belden 1694A, note that connectors are specific to a cable model and so are the die for the crimpers required for assembly.
Old 19th January 2013
  #3
Deleted User
Guest
I used BNC cables 75 ohm from Radioshack, never had an issue with them.
I clocked a Roland VS2480, MOTU 828MKii, DIGI002Rack with them. Worked fine
Old 19th January 2013
  #4
Gear Maniac
 
distante's Avatar
 
🎧 10 years
mmm here (in my country) Radioshack only sells this auvio stuff, some of them are really overpriced (like 70 bucks for a meter of optical cable) and other don't had any technical info.

For example :



tech info:
Connector: Male.
Connector cover: Gold 24K.
wire conductor: 0,04 pulg. (1,02 mm) CCS.
cable insulation: 0,18 pulg. (4,60 mm).
length: 3 feet (0,91 m) x 15-214 / 6 feet (1,82 m) x 15-215 / 12 feet (3,65 m) for 15-216.
shield: 0,006 pulg. (0,16 mm) × 48 AL paper.
cover: 0,27 pulg. (6,8 mm) black.



That's why I think I will need to buy the cable and connectors myself
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