Bang & Olufsen BeoLink Handbook

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 speci cations are measured to ground using an oscilloscope.
The following speci cations apply to Master Link:
Pin no. in
Cable colour
Function
Speci cation
Master Link
plug
1
white/green
data -
-0.25 V ± 0.1 V
2
green
data+
+0.25 V ± 0.1 V
3
white/blue
ML sensor
4 - 10
No connection
(N.C.)
11
blue
- supply-
-7 V to -15V
voltage
Stndby -3V to -15V
12
pink
+supply-
+7 V to +15 V
voltage
Stndby +3V to +15V
13
white/orange
sound -L
1 V Bal
Rin 2.2 Mohm,
Rout 75 ohm
14
orange
sound +L
1 V Bal
Rin 2.2 Mohm,
Rout 75 ohm
15
white/red
audio -R
1 V Bal
Rin 2.2 Mohm,
Rout 75 ohm
16
red
audio +R
1 V Bal
Rin 2.2 Mohm,
Rout 75 ohm
Shield
3 x solid cable
Ground
Data speed is 19,200 bits/sec.
By way of comparison, the Master Control Link data speed is 160 bits/sec.
Master Link
Aerial
35

Bang & Olufsen BeoLink Specifications

General

Brand	Bang & Olufsen
Model	BeoLink
Category	Control Unit
Language	English