Bang & Olufsen BEOLINK Handbook page 39

MASTER LINK
Do you experience any of the following with the Master Link system: The
video jams (red bar on the shield), humming in the front loudspeakers,
clicking in the rear loudspeakers when they are not in use, humming in all
loudspeakers, or no communication between AV products?
If this is the case you should check whether the aerial is grounded. If not,
we recommend creating a ground connection from here.
Simple Master Link measurements can be made either using a voltmeter or,
preferably, an oscilloscope.
All specifications are measured to ground using an oscilloscope.
The following specifications apply to Master Link:
Pin no. in Cable colour
Master Link
plug
1 white/green
2 green
3 white/blue
4 - 10 No connection
11 blue
12 pink
13 white/orange
14 orange
15 white/red
16 red
Shield 3 x solid cable
Data speed is 19,200 bits/sec.
By way of comparison, the Master Control Link data speed is 160 bits/sec.
Master Link
Aerial
Function
data -
data+
ML sensor
(N.C.)
- supply-
voltage
+supply-
voltage
sound -L
sound +L
audio -R
audio +R
35
Specification
-0.25 V ± 0.1 V
+0.25 V ± 0.1 V
-7 V to -15V
Stndby -3V to -15V
+7 V to +15 V
Stndby +3V to +15V
1 V Bal
Rin 2.2 Mohm,
Rout 75 ohm
1 V Bal
Rin 2.2 Mohm,
Rout 75 ohm
1 V Bal
Rin 2.2 Mohm,
Rout 75 ohm
1 V Bal
Rin 2.2 Mohm,
Rout 75 ohm
Ground