Bang & Olufsen connectors pinout?

[Bricolo]

Hi,

I'm looking for the pinout of some B&O connectors
-Audio aux link
-Power link

I've found the audio in for the audi aux link, but I'd like to know where I can take the audio out (without using a scart)

Thanks
Alex

 

[JensRasmussen]

Sockets in equepment:

Powerlink:

Pin 1 = Power link on; on > 2.5V, off =<0.5V
Pin 2 = Signal gnd
Pin 3 = Left
Pin 4 = Speaker on/mute; on > 2.5V, off =<0.5V
Pin 5 = Right
Pin 6 = Data; High > 3.5V, low < 0.8V
Pin 7 = gnd
Pin 8 = Not used anymore, used to be speaker/amp overload

Audio Aux link:

Pin 1 = Left in
Pin 2 = Signal gnd
Pin 3 = Left out
Pin 4 = Right in
Pin 5 = Right out
Pin 6 = Data; High > 3.5V, low < 0.8V
Pin 7 = Not used

\Jens

 

[Bricolo]

Thank you! 🙂

Are all the audio signals at line level?

 

[JensRasmussen]

The AAL is 2V rms unregulated.
The PL is up to 4 V rms in newer products if I remember correctly

\Jens

 

[Bricolo]

OK,

What's the difference (appart the voltage) between the various audio outputs?

 

[JensRasmussen]

AAL is a line signal, unregulated, from source to master

PL is a volume controlled signal, from master to active speaker

\Jens

 

[Bricolo]

Thank you Jens!

I'll go for the AAL, so

 

[Marekvb]

Bang & Olufsen Powerlink Control Protocol

Hi,

Does anyone know anything about the B&O powerlink serial control protocol? I have a BeoLab 2 and a Beolab 7-4 that I would like to control without using a BeoSound system.

To do this I imagine I would need to know the commands to ramp the volume of the speakers and power on / off commands (if this is done using the data line as well as the powerlink on / speaker on lines). I would also need basic protocol infromation (such as is this RS232, TTL etc).

Any help at all would be appreciated, as at the moment I'm completely in the dark about the serial control of these speakers...

Cheers,

Marek von Bertouch

 

[frederickluther]

Hi,

Does anyone know anything about the B&O powerlink serial control protocol? I have a BeoLab 2 and a Beolab 7-4 that I would like to control without using a
To do this I imagine I would need to know the commands to ramp the volume of the speakers and power on / off commands (if this is done using the data line as well as the powerlink on / speaker on lines). I would also need basic protocol infromation (such as is this RS232, TTL etc)


the beolab systems have no volume control, all of the volume control is done inside the unit feeling the signal, and the voltage if the signal output is regulated to adjust the volume of the beolab speaker output.